Maryland Primary Care Physicians at Pasadena offers high-quality, comprehensive medical care to patients of all ages, with emphasis on preventive care.

Our providers are board-certified in family practice, internal medicine, and pediatrics, with extensive experience in all aspects of primary care pediatrics, internal medicine and family health. With in-person and telemedicine appointments, MPCP offers you easily accessible care. Our team coordinates your treatment for better outcomes, and the Patient Portal makes communication easier. More on our services and policies.

Daytime Office Info

24 Magothy Beach Road
Pasadena, Maryland 21122

Phone Numbers
Office Hours:
Monday-Thursday
7:00 AM-8:00 PM
Friday
7:00 AM-5:00 PM
Saturday
8:00 AM-12:00 PM
Phone Hours:
Monday-Thursday
7:30 AM-5:00 PM
Friday
7:30 AM-4:00 PM
Saturday
8:00 AM-12:00 PM*

Practice Manager:

Diana Kerner

After Hours Telemedicine Info

Telemedicine visits available after hours for acute care only.

After Hours Telemedicine Phone: 410.729.3368
Monday-Friday
5:00 PM-10:00 PM
Saturday
10:00 AM-4:00 PM
Sunday
12:00 PM-6:00 PM

News and Announcements

  • All MPCP Offices Have Flu Vaccine Available

    We are pleased to announce that all Maryland Primary Care Physicians offices have both regular dose, and high dose flu vaccines for those over age 65. Read more…

  • MPCP Pasadena Welcomes Sharon Hill, PA-C

    Sharon Hill, PA-C is certified by the National Commission on Certification of Physician Assistants.  Read more…

  • MPCP Pasadena Welcomes Vivian Duru, PA-C

    Vivian Duru, PA-C is certified by NCCPA National Commission on Certification of Physician Assistants.  Read more…

  • The Pasadena Office Now Offers Diabetic Retinopathy Screening to Patients with Type I or Type II Diabetes

    Our office is pleased to announce that for our patients with Type 1 or Type 2 diabetes, we have added a convenient in-office test that screens for a disease that may put your vision at risk. Learn more.

  • Save Time With eCheck-in

    Check in for appointments online with the new eCheck-In feature in your Patient Portal Account. You can check in up to seven days in advance using your smartphone, tablet or computer.

  • Maryland Primary Care Physicians is doing everything possible to make your in-office visits safe!

    Learn more about the steps we are taking to care for our patients, staff and community.

Featured Services



Reduce facial lines, frowns and wrinkles the non-surgical way. Our board certified doctors are experienced and trained in Botox treatment. Call today for a free consultation.
Click here for more information about Botox treatment.

Price Information: $15 per unit for first 25 units; $10 per unit after 25 units

Special Offer: Refer a new client and receive $50 off your next Botox treatment.

For patients with chronic migraines, BOTOX® is a very effective and safe treatment option. Talk to your primary care provider to see if you are eligible for BOTOX® injections for chronic migraines. Call 410-255-2700 for an appointment or click here to learn more.



For patients with certain medical needs, MPCP offers healthcare services in the comfort and privacy of their homes, including palliative and hospice care. Learn more about the available services.

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Our Doctors

Garth A. Ashbeck, M.D.

  • In Practice Since: 1998
  • Medical Degree: Georgetown University School of Medicine
  • Residency Program: Memorial Medical Center
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Patricia Chambliss, M.D.

  • In Practice Since: 1992
  • Medical Degree: Case Western Reserve University
  • Residency Program: Highland Hospital
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Paul Chite, M.D.

  • In Practice Since: 2011
  • Medical Degree: American University of the Caribbean, Saint Maarten
  • Residency Program: Creighton University Medical Center
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Amy J. Cowart, D.O.

  • In Practice Since: 2000
  • Medical Degree: Michigan State University College of Osteopathic Medicine
  • Residency Program: University of Massachusetts
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Tracy A. Jansen, M.D.

  • In Practice Since: 1997
  • Medical Degree: Virginia Commonwealth University School of Medicine
  • Residency Program: Medical College of Georgia
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Raygan L. Lofton, M.D.

  • In Practice Since: 2007
  • Medical Degree: University of Maryland School of Medicine
  • Residency Program: University of Maryland Medical Center
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Sharon Messics, MD

  • In Practice Since: 1991
  • Medical Degree: Temple University School of Medicine
  • Residency Program: Medical College of Virginia
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Trang M. Pham, M.D.

  • In Practice Since: 2002
  • Medical Degree: Jefferson Medical College
  • Residency Program: University of Maryland Medical Center
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José C. Zarzuela, M.D.

  • In Practice Since: 1997
  • Medical Degree: University of Maryland School of Medicine
  • Residency Program: University of Maryland Medical System
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Medical Staff

Vivian Duru, PA-C

  • In Practice Since: 2011
  • Primary Specialty: Physician Assistant
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Sharon Hill, PA-C

  • Primary Specialty: Physician Assistant
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Alyson Lang, M.M.S., PA-C

  • In Practice Since: 2013
  • Primary Specialty: Physician Assistant
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Alan Reza, PA

  • In Practice Since: 2023
  • Primary Specialty: Physician Assistant
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Sarah A. Sullivan, CRNP

  • In Practice Since: 2004
  • Primary Specialty: Nurse Practitioner
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Our Location