Office Hours: MONDAY-PM
To schedule an appointment, please call 410-332-9356

  

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Counseling 
Nicholas P. Conti
Nicholas P. Conti, LCSW-C returns to Overlea where he was born and raised.  He received his bachelor's degree from Loyola College in Baltimore and was commissioned as an officer in the United States Army.  Mr. Conti has served as a Clinical Associate Professor at the University of Maryland School of Social Work and as a Clinical Assistant Professor at the University of Maryland Scholl of Medicine.
Mr. Conti helps people in coping with major life changes, depression, anger management and the development of effective communication skills.

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Dermatology

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Endocrinology
Dr. Errol H. Rushovich
Dr. Rushovich trained in South Africa and did his Residency at Mt. Sinai Hospital in Chigago and his Fellowship training at the University of Michigan at Ann Arbor.  He was awarded a two year NIH research award during his Fellowship training.  Dr. Rushovich is a Board Certified physician with specialties in Internal Medicine and Endocrinology (2001).  His special interest is in endocrine disorders with particular emphasis on preventive strategies.

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Family Practice
Dr. Michael D. Martin
Board certified in Family Medicine, Dr. Martin is a graduate of the University of Maryland School of Medicine and completed his Residency at the University of Maryland Medical Center.  Dr. Martin performs many in-office surgical procedures.  He holds special interest in sports medicine and physical fitness.




To schedule an appointment, please call 410-663-8100

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Foot and Ankle Reconstructions
Dr. Rebecca A. Cerrato
Rebecca A. Cerrato, M.D., joined the Institute for Foot and Ankle Reconstruction at Mercy as an attending surgeon following the completion of her Fellowship under the instruction of the institute's medical director, Dr. Mark Myerson.
Board Certified, Dr. Cerrato offers expertise in foot and ankle surgery, including arthroscopic surgery.  She has orthopedic-focused research experience.

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Gastroenterology
Dr. David B. Posner
David B. Posner, M.D., Chief of Gastroenterology at Mercy, is a graduate of the University of Maryland School of Medicine.  Dr. Posner is certified by the American Board of Internal Medicine with a subspecialty in Gastroenterology.  He is a fellow of the Ameican College of Physicians, American Gastroenterological Society, and the American College of Gastroenterology as well as American Society for Gastrointestinal Endoscopy, American Association for the Study of Liver Diseases, and Baltimore City Medical Society.  Dr. Posner is a past President of the Maryland Society of Gastrointestinal Endoscopy.



Dr. Scott M. Huber
Scott Huber, M.D., earned his medical degree from the University of Pittsburgh School of Medicine.  He completed his Residency in Internal Medicine through the University of Maryland System and the Fellowship in Gastroenterology, his interests include GERD, Screening for GI cancers and ulcer disease.
Dr. Huber is a member of the board of directors of the Endoscopy Center of North Baltimore, American Gastroenterological Association, American College of Gastroenterology, and American Society for GI Endoscopy.



Dr. Patrick A. Hyatt
Patrick Hyatt, M.D., earned his medical degree at the Temple University School of Medicine in Philadelphia.  He completed his Residency in Internal Medicine and his Fellowship in Gastroenterology at Brown University in Providence, Rhode Island.  Dr. Hyatt is certified by the American Board of Internal Medicine and American Board of Gastroenterology.  He received advanced training in therapeutic endoscopy, including endoluminal stent placement and endoscopic mucosal resection of large, flat polups.  Dr. Hyatt is a member of the American Gastroenterological Association, American Society of Gastrointestinal Endoscopy, and American college of Gastroenterology.


Dr. Anurag Maheshawari
Anurag Maheshawari, M.D., Completed his Fellowship in Gastroenterology as well as an advanced Felloship in Transplant Hepatology at Johns Hopkins Hospital.  He also served as a junior faculty member in the division of Gastroenterology and Hepatology at the Johns Hopkins University School of Medicine.  Dr. Maheshawari received his medical degree from the University of Bombay, India, and completed his Residency in Internal Medicine at the St. Louis University Hospital, St. Louis, Missouri.  Thereafter, he worked as a practicing internist for a few years before his pursuit of advance training.

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General Surgery
Dr. Kelly Alexander
Dr. Alexander received his medical degree from the Albert Einstein College of Medicine in the Bronx, New York.  He completed his Residency in General Surgery at the Long Island Jewish Medical Center in New Hyde Park,NY.  Dr. Alexander completed Fellowships in Laparoscopy and Pediatirc Trauma at the North Shore Long Island Jewish Health Care System and Schneider Children's Hospital of the Long Island Jewish Medical Center, respectively.  He is board certified by the American Board of Surgery.  He is a member of the American College of Surgeons and the Society of American Gastrointestinal Endoscopic Surgeons.

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Gynecology
Dr. Fermim F. Barrueto
As Chief of Endoscopy & Pelvic Reconstruction in the Center for Women's Health & Medicine at Mercy, Dr. Barrueto treats abnormal uterine bleeding, infertility, chronic pelvic pain, and other reproductive systme disorders.  Areas of special interest include endoscopic surgery, pelvic reconstruction, treatment of infertility, urinary incontinence, menopause, and minimally invasive surgery as an alternative for hysterectomy.  Dr. Barrueto is board certified in Obstetrics and Gynecology as well as Advanced Endoscopic Surgery



Dr. Kevin M. Audlin
Dr. Audlin received his undergraduate degree from St. Mary's College of Maryland and his medical degree from Ross University.  He completed his Residency in Obstetrics and Gynecology at the university of Maryland and then joined the Gynecology Center in the Center for Women's Health and Medicine at Mercy.  Dr. Audlin sees all gynecology patients and has a special interest in Endoscopic and Pelvic Surgery.

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Internal Medicine
Dr. George E. Lowe
After 30 years, Dr. Lowe recently retired from the full time practice of medicine.  He continues to be active at Overlea, serving as Co-Director with Dr. Ferro.









Dr. Fernando J. Ferro
After graduating from the University of Maryland School of Medicine, Dr. Ferro completed his residency at Mercy Medical Center and served there as Chief Resident.  He is board certified in Internal Medicine.








Dr. Marion C. Kowalewski
Dr. Kowalewski is a graduate of the University of Maryland Medical School.  He completed his residency in Internal Medicine at Mercy Medical Center.  He has been practicing medicine for over 20 years.


 

 

 
Dr. Ari M. Lieman
Dr. Lieman completed his undergraduate degree from Harvard University and earned hsi medical degree at the University of North Carolina School of Medicine.  He is board certified in Internal Medicine.  Dr. Leiman has been in practice since 1989.








Dr. Shawn M. Peffall
A native of California, Dr. Peffall completed his residency in Internal Medicine at St. Agnes Hospital in Baltimore and served there as Chief Resident.  He is board certified in Internal Medicine.  Dr. Peffall's areas of special interest include geriatrics and the treatment of pulmonary disorders.


 




Dr. Michael Zang
Dr. Zang, board certified in Internal Medicine, began practicing medicine in the Washington DC area before moving to Overlea Personal Physicians in October, 2004.  He attented medical school at the State University of New York at Sonny Brook and completed his residency at Johns Hopkins/Sinai Hospitals.







Dr. Timothy G. Doyle
Born and raised in Baltimore, Dr. Doyle completed his undergraduate degree at Loyola College in Baltimore and his medical degree at the Drexel University College of Medicine in Philadelphia, Pennsylvania.  He completed his residency in Internal Medice at the Milton S. Hershey Medical Center in Hershey, Pennsylvania and is board certified by the American Board of Internal Medicine.

 

Accepting New Patients

 

Dr. Mitchell A. Gutshall
Dr. Gutshall received his medical degree from the University of Maryland School of Medicine and completed his internship and residency in Internal Medicine at the University of Maryland Medical Center and Baltimore Veterans Administration Medical Center.

 

Accepting New Patients

Dr. Thaw Poon
Dr. Poon received his medical degree from the Institute of Medicine, Mandalay, Burma.  Dr. Poon completed his residency in Internal Medicine at St. Agnes Hospital, Baltimore, Maryland.  Dr. Poon is Board Certified by the American Board of Internal Medicine.

Accepting New Patients
 

To schedule an appointment, please call 410-663-8100

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Nephrology
Dr. Robert C. Greenwell
A graduate of the University of Maryland School of Medicine, Dr. Greenwell completed his residency at Mercy Medical Center.  He completed a fellowship in Nephrology at the Francis Scott Key Medical Center/Johns Hopkins.  Dr. Greenwell is Chief of Nephrology at Mercy Medical Center.

 

Office Hours: FRIDAY-AM
To schedule an appointment, please call 410-744-0890

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Neurology
Dr. Michael S. Sellman
A graduate of the University of Maryland School of Medicine, Dr. Sellman completed his residency at the University of Maryland and his fellowship at the Akademic Hospital in Uppsala, Sweden.  He is board certified by the American Board of Psychiatry and Neurology.  His areas of special interest include the treatment of neck pain, back pain, nerve entrapment, carpa tunnel syndrome, and diabetic neuropathy.
 

Office Hours: TUESDAY-AM
To schedule an appointment, please call 410-347-1891
 

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 Neurosurgery
Dr. Charles Park
As one of the neurosurgeons of the Central Maryland Neurosurgical Associates, LLC, Dr. Park provides treatment for diseases of the central nervous system, brain lesions, aneurysms, traumatic head injuries, back and spinal cord injuries, as well as discs and peripheral nerve disorders such as carpal tunnel syndrome, tarsal tunnel syndrome, and ulnar nerve decompression.
Dr. Park completed his medical school education at the State University of New York, Dr. Park completed his residency at the University of Maryland.  In practice since 1997, he has been board certified since 1999.
 

Office Hours: FRIDAY-PM

Dr. James Frazier
Dr. Frazier, III, M.D., is a graduate of Brown University and earned his medical degree from the Johns Hopkins university.  Dr. Frazier completed his residency in the Department of Neurosurgery at the Johns Hopkins School of Medicine and fellowships in Radiosurgery and Oncology Research at Hopkins.
Dr. Frazier is a member of the American Association of Neurological Surgeons and the Congress of Neurological Surgeons.
 

Office Hours: TUESDAY-PM

To schedule an appointment, please call 410-391-6904

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Non-Surgical Spine Care
Dr. Mara Vucich
Dr. Vucich is board certified in Physical Medicine and Rehabilitation specializing in treating painful spine, joint, muscle and nerve conditions without surgery.  Dr. Vucich attented medical school from 1994 to 1998, at the Ohio University College of Osteopathic Medicine.  She completed her residency training at the Medical College of Ohio in Physical Medicine and Rehabilitation.  Here she served as chief resident and graduate medical education committee representative.


 

Office Hours: WEDNESDAY-AM/PM
To schedule an appointment, please call 410-539-3434

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Ophthalmology
Dr. Sheri L. Rowen
Dr. Rowen earned her medical degree at the University of Maryland School of Medicine.  She has lectured internationally, teaching advanced techniques in cataract and laser surgery to physicians worldwide.  Dr Rowen serves as an assistant clinical professor of Ophthamology at the University of Maryland School of Medicine and is a clinical instructor for Johns Hopkins Hospital.  She is a member of the American Academy of Ophthamology, and a member of the American Society of Cataract and Refractive Surgery.


 

 Office Hours: MONDAY-AM/PM AND EVERY OTHER WEDNESDAY-AM/PM
To schedule an appointment, please call 410-821-5333

Dr. Wendy H. Bohner
Dr. Bohner, M.D., board certified Ophthamologist, has extensive experience in cataract removal, premiere lenses  (Crystalens, ReZoom and Restor), diabetic screening, glaucoma screening and treatment, plaquinal theraphy screening, and routine exams.  Dr. Bohner earned her medical degree from the Medical College of Pennsylvania in Philadelphia.  She completed her internship in Internal Medicine and Her residency in Ophthamology, both at GBMC.  Dr. Bohner is a member of the American Academy of Ophthamology.


 

Office Hours; THURSDAY-AM/PM
To schedule an appointment, please call 410-828-6000

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Orthopedics
Dr. Thomas V. Whitten
A graduate of the University of Maryland Medical School, Dr. Whitten completed his residency in Orthopedic Surgery at the University of Maryland Hospital in 1997.  Dr. Whitten is board certified by the American College of Orhtopedic Surgeons and has more than 22 years experience in orthopedic medicine.
In addition to his work in orhtopedic surgery, Dr. Whitten Also specializes in sports medicine, including arthroscopic surgery and joint replacements.
 

Office Hours: WEDNESDAY-AM

Dr. Kamala Littleton
Dr. Littleton, M.D., received her medical degree from the Georgetown University School of Medicine in 1994 and completed her orthopedic surgery residency at the University of Maryland Medical System in 1999.  She became a member of the American Board of Orthopedic Surgeons in 2001 and was inducted as a Fellow in the American Academy of Orthopedic Surgeons in 2003.

 

Office Hours: FRIDAY-AM

Dr. Vipul N. Nanavati
Dr. Nanavati, M.D., is Director of the Upper Extremity Program within the Orthopedic Specialty Hospital at Mercy.  Dr.  Nanavati specializes in the treatment of all conditions involving the upper extremity from the shoulder to the hand.  His areas of interest include surgical and non-surgical conditions of the shoulder, elbow, and hand including arthroplasty, repair and reconstruction.  Dr. Nanavati earned his medical degree from Robert Wood Johnson Medical School in Camden, New Jersey.    He is a Fellow of the American  Academy of Orthopaedic Surgeons and the American Society for Surgery of the Hand.

 Office Hours; MONDAY-AM/PM

To schedule an appointment, please call 410-539-2227

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Otolaryngology (ENT)
Dr. Alan Oshinsky
Dr. Oshinsky completed his residency at the University of Maryland and is board certified.  As an Ear, Nose and Throat specialist, his areas of special interest include treatment of snoring and sleep apnea, tinnitus, pediatric otolarynology, and nasal and sinus disease.






Dr. Ileana Showalter
Dr. Showalter graduated from the University of Puerto Rico School of Medicine in 1995 and completed her residency in Otolaryngology-Head and Neck Surgery in 2002.  She completed her Fellowship in Head and Neck Surgical Oncology at the Department of Otolaryngology-Head and Neck  surgery at Wayne State University in Detroit, MI.  Dr. Showalter also completed an internship in General Surgery as well as a Fellowship in the treatment of deafness and other communications disorders at the National Institutes of Health in Bethesda, MD.

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Plastic & Reconstructive Surgery
Dr. Brendan Collins
Dr. Collins, M.D., joined Mercy after completing a combined Johns Hopkins-University of Maryland fellowship in Plastic and Reconstructive Surgery.  He specializes in aesthetic breast surgery (augmentation, mastopexy), body contouring (liposuction, body lift), abdominoplasty, eyelid surgery, and facial enhancement.  He received his medical degree from Vanderbilt University School of Medicine.  Dr. Collins completed his General Surgery internship and residency at Johns Hopkins Hospital, and is board certified in general surgery.


 

Office Hours: THURSDAY-AM
To schedule an appointment, please call 410-332-9700

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Podiatry
Dr. Sean Sider
Foot Centers of Maryland, LLC- Led by Sean Sider, DPM, Foot Centers of Maryland, LLC provides comprehensive podiatric care.  Dr. Sider graduated from the Ohio College of Podiatric Medicine.  He is especially interested in sports medicine and diabetic foot care.



 

Dr. Branden Rhodes
Dr. Rhodes is a graduate of Colorado State University and earned his Doctor of Podiatric Medicine degree from Temple University School of Podiatric Medicine in Philadelphia, PA.

He completed a three year surgical residency at the Washington Hospital Center in Washington, DC.  There he served as Chief Resident in his last year.  Dr. Rhodes has interest in sports medicine of the foot and ankle and specializes in diabetic foot management/lim salvage utilizing both surgical and conservative treatments.

Pulmonary
Dr. Audrey Liu
Dr. Liu, M.D., graduated from Massachusetts Institute of Technology and received her medical degree from the McGill University Faculty of Medicine.  She completed her internship and residency in Internal Medicine at the Johns Hopkins Bayview Medical Center.  Dr. Liu then completed fellowships in Pulmonary and Critical Care Medicine as well as Sleep Medicine at the Johns Hopkins University School of Medicine.  Board certified in Internal Medicine, Pulmonary Medicine and sleep Medicine, Dr. Liu has extensive clinical and research experience.  Dr. Liu is skilled in the full range of pulmonary medicine, with special interests in sleep disorders and interventional bronchoscopy.

 

Office Hours: THURSDAY-PM
To schedule an appointment, please call 410-332-9732

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Radiation Oncology
Dr. Maria Jacobs
Dr. Jacobs, M.D., is Director of Radiation Oncology at Mercy and oversees all radiotherapy services at Mercy Medical Center.  Board certified by the American Board of Radiology, Dr. Jacobs earned her medical degree from the Universidad Central de Venezuela in Caracas, Venezuela.  She trained at Howard University in Washington, D.C., and the University of New Mexico in Albuquerque before joining the University of Maryland in Baltimore as an assistant Professor of Radiation Oncology.  She is a member of the American Society of Therapeutic Radialogy as well as the American Society of Clinical Oncology.



 

Rheumatology
Dr. Marylyn Lorenzo
Dr. Lorenzo began seeing patients at Overlea in August, 2005.  Board certified in Internal Medicine, she recently completed a fellowship in Rheumatology as well as Internship and Residency at the Cabrini Medical Center in New York City.  She is a graduate of the University of Puerto Rico and the Central Carib Medical School in Puerto Rico.  She is a member of the American College of Rheumatology and the American Medical Association.



 

Office Hours: TUESDAY AND WEDNESDAY-AM/PM
To schedule an appointment, please call 410-332-9346

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Spine Surgery 
Dr. Brian Steinmetz
Dr. Steinmetz, D.O., received his medical degree from the Ohio University college of Osteopathic Medicine, Athens, Ohio.  He completed his Physical Medicine and Rehabilitation residency at Virginia Commonwealth University, Richmond, Virginia, where he served as a Chief Resident.  Dr. Steinmetz completed an Interventional Spine and Sports Medicine fellowship at the Sinai Hospital of Baltimore/Orthopedic and Spine Specialist of York, Pennsylvania.  He is currently Board Eligible in Physical Medicine and Rehabilitation and Sports Medicine. 

Dr. Dean, M.D., received his medical degree from Jefferson Medical College of Thomas Jefferson University in Philadelphia, PA.  Dr. Dean is Board Certified by the American Board of Orthopaedic Surgery.  Dr. Dean Completed his General Surgery internship and Orthopedic Surgery residency at the Case Western Reserve University School of Medicine in Clevelan, Ohio.  He then completed a fellowship in Orthopedic Spine Surgery at the Emory Orthopaedic and Spine Center at the Emory University School of Medicine in Atlanta, Georgia.

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Surgical Oncology 
Dr. Vadim Gushchin
Dr. Gushchin, M.D., is the Director of Gastrointestinal Oncology at The Institute for Cancer at Mercy.  He completed Comprehensive training in Surgical Oncology at Roswell Park Cancer Institute, the birthplace of modern oncology practice and research in the United States.  His Primary clinical and research interests are the malignancies of the gastrointestinal tract.  Dr. Gushchin provides expertise with advanced surgical techniques such as isolated lim infusion (ILI) for melanoma treatment and offers individualized oncology patient care and a focus on oncology research.

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Urology
Dr. Stanley B. Silber
Stanley B. Silber, M.D., Chief, Department of Urology, received his medical degree from the Chicago Medical School.  He completed his general internship and Urology residency at the University of Maryland.

Board Certified, Dr. Silber is a member of the American College of Surgeons, Baltimore City Medical Society, Maryland Medical and Chirurgical Faculty, American Urological Association, and Maryland Urologic Society.  He is a former flight surgeon in the United States Air Force.





Dr. Ira E. Hantman
Ira E. Hantman, M.D., received his medical degree from the University of Maryland School of Medicine, where he was presented the A. Bradley Gaither Urology Award.  He completed his General Surgery and Urology residencies at the University of Maryland Hospital.  Dr. Hantman completed a Pediatric Urology Fellowship and received a Business of Medicine Degree the Johns Hopkins Hospital.

Board Certified by the American Board of Urology and national Board of Medical Examiners, Dr. Hantman has been President of the Medical Staff at Mercy Medical Center.  He is a member of the Baltimore City Medical Society, Medical Surgical Society of Maryland, American Urological Association, Maryland Urological Association, and a Fellow of the American College of Surgeons.




Dr. Robert Thompson
Robert A. Thompson, Jr., M.D., provides minimally invasive and robotic surgical options for patients who have been diagnosed with prostate disease.

He received his medical degree from the University of Maryland School of Medicine.  He completed his surgical internship and residency at Saint Agnes Hospital in Baltimore, Urology residency at University of Maryland Hospital, and Pediatric Urology Fellowship at the Johns Hopkins Hospital.

Board Certified, Dr. Thompson is a member of the American Medical Association, American Urological Association, Baltimore City Medical Society, Maryland Urologic Association, and University of Maryland Surgical Society.  He is an Associate Fellow of the American College of Surgeons and a Diplomat of the American Board of Urology.  Dr. Thompson is an instructor of surgery at the University of Maryland and has numerous publications to his credit on such topics as prostate and bladder cancer.

To schedule an appointment, please call 410-332-9654

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Vascular Surgery  
Dr. James Guzzo
Dr Guzzo, M.D., is a graduate of Johns Hopkins University, and earned his medical degree from the University of Vermont College of Medicine.  He completed both his internship and residency in General Surgery at the university of Maryland Medical Center.  Dr. Guzzo completed his Vascular Surgery fellowship at Johns Hopkins Hospital.  Dr. Guzzo is a candidate ot the American College of Surgeons, Society for Vascular Surgery and the Peripheral Vascular Surgical Society.

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