MedStar Medical Group Internal Medicine at MedStar Good Samaritan Hospital


Family Medicine | Internal Medicine

Care you can trust.

Don't delay medical care. We are open for in-person office visits and video visits. Call us to schedule your appointment today.

Call: 443-444-5600

5601 Loch Raven Blvd.
Russell Morgan Bldg., 3rd Floor
Baltimore, MD 21239

Hours of Operation:

Monday, Wednesday, Friday: 8 a.m. to 5 p.m.
Tuesday, Thursday: 8 a.m. to 7 p.m.

Care you can trust

Your health and safety are always our top priority. Here's what you can expect from an in-office visit:

  • Face masks required for everyone, regardless of symptoms
  • Frequent disinfecting and cleaning of public spaces and exam rooms, including after every clinical visit
  • Staggered appointments to minimize people in a given area
  • Screening all patients and visitors for symptoms upon arrival
  • Physical distancing with floor markers and reconfigured waiting areas
  • Sanitizing stations throughout the facility

We are a primary care practice that provides a broad spectrum of healthcare services to patients of all ages. All our physicians are board-certified in internal medicine and family medicine.

In addition to our primary care providers, specialists located in our office include, gastroenterology, pulmonology, and endocrinology.

Meet the Team


Ivan Briones, MD, family medicine

Ivan Jesus Briones, MD
Family Medicine

Mohammed Khan, MD, internal medicine

Mohammed Khan, MD
Internal Medicine


Betty Lee, MD, internal medicine

Betty Lee, MD
Internal Medicine


Thea Manlapaz, MD, family medicine

Thea Manlapaz, MD
Family Medicine

David Naiman, MD, internal medicine

David Naiman, MD
Internal Medicine

Carl Sperling, MD, internal medicine

Carl Sperling, MD
Internal Medicine


Maxim Greceannii, CRNP, internal medicine

Maxim Greceannii, CRNP
Internal Medicine





Need urgent care?

We bring together top providers at community-based locations.

Need care after hours?

We offer virtual access to medical providers from your home.

Looking for specialty care?

We bring together the top specialists in your community.

Insurance plans we accept

MedStar Medical Group accepts most major health insurance plans. If you are uncertain as to whether your individual health insurance plan is accepted at MedStar Medical Group, please call your insurance company.

Click here for a list of accepted insurance plans.

Services we offer include:

  • Annual physicals and sports physicals
  • Chronic disease screening and management
  • Flu care and flu vaccine
  • Geriatrics
  • Laboratory testing and blood tests
  • Pediatric Care
  • Preoperative consultations
  • Vaccines and immunizations
  • Weight loss assistance


Patient-Centered Medical Home™ is a trademark of the National Committee for Quality Assurance.

MedStar Medical Group Internal Medicine at MedStar Good Samaritan Hospital has been awarded Patient-Centered Medical Home™ recognition by the National Committee for Quality Assurance (NCQA). The NCQA Patient-Centered Medical Home standards emphasize the use of systematic, patient-centered, coordinated care that supports access, communication, and patient involvement.

Directions and Parking


Free parking available on-site.
Public Transportation: Bus-line accessible.