Our office is currently fully operational.


We will be offering the Flu Vaccine
Beginning September 15th
No appointment needed.
Must be a current patient.

Mon-Fri, 9am-12pm and 2pm-4pm


Our clinic will not be giving the COVID-19 vaccine.
Please contact the health department with any
questions regarding the vaccine at the website
below AND to register for your vaccine:

If you are not able to register for the COVID vaccine online call:
Mon-Fri, 8am-5pm
English: 301-600-7900
Spanish: 301-600-7905

Internal Medicine

Dr. Andrew O. Donelson
Dr. Hiren N. Shah

Dr. Hemen P. Shah
Internal Medicine Information
Accepting New Patients


Majd Hakim, M.D.
Jinhui Yuan, PA-C

Endrocrinology Information
Accepting New Patients

Frederick Internal Medicine and Endocrinology Services

Over the years we have been committed to providing the highest quality health care and medical services possible to adults and children of all ages throughout the community. Our goal is to make your visit a pleasurable and comfortable experience.

Our Staff is friendly, caring, helpful and committed to making your visit pleasant and convenient.

Our Mission

Frederick Internal Medicine and Endocrinology Services, P.A. is a major contributor to the community and an important source of quality healthcare in the Frederick area. Our primary goal is to provide the highest quality patient care with compassion. Our reputation and success are a reflection of the dedication and commitment of our doctors and staff. We assure our patients that we will strive to do our best to provide an exceptional customer experience and keep them in good health, because nothing is more important.

What are our areas of expertise?
An Endocrinologist is a specialist in glands and hormones. We specialize in diabetes, thyroid conditions, osteoporosis and bone disorders, cholesterol, pituitary disease, adrenal gland disorders, polycystic ovary syndrome, male testicular dysfunction, medical weight loss, and a variety of other hormone-related conditions.

Frederick Internal Medicine and Endocrinology Services is happy to launch our new website! It is designed to provide our new and existing patients with the best patient care possible. You will find new patient paperwork to download and complete prior to your initial visit, profiles of our caring and competent physicians, and information on the Internal Medicine or Endocrinology services our physicians provide.