Dr. Philip G. Henjum, MD

DPC Internal Medicine, Olney, MD

Dr. Henjum has been in private practice in Olney, Maryland, since 1995 and opened a new practice in October 2005.

18109 Prince Philip Drive, Suite 200, Olney, MD 20932

At a glance

Board certified

Internal medicine and Hospice and Palliative Medicine

Licensed in

Facts on this page last checked September 2026. How we check doctors

About Dr. Henjum

Dr. Henjum practices DPC Internal Medicine at Philip Henjum, MD in Olney, Maryland. He earned his medical degree from Albert Einstein College of Medicine in 1985, after earning a biology degree from Washington University in St. Louis in 1980. He completed his internal medicine internship and residency at Washington Hospital Center in Washington, D.C., from 1985 to 1988, and served as chief resident there from 1988 to 1989.

He is board-certified in internal medicine by the American Board of Internal Medicine since 1988, and also board-certified by the American Board of Hospice and Palliative Medicine since 2006. He served as vice-chairman (2008 to 2010) and chairman (2010 to 2012) of the Department of Medicine at Montgomery General Hospital in Olney, and as medical director of JSSA Hospice from 2006 to 2021.

Dr. Henjum has been named one of Washingtonian Magazine's Top Doctors, recognized as one of the Best Doctors in America, named a Top Rated Primary Care Physician by Washington Consumers' Checkbook, and received Montgomery General Hospital's Pillar of Excellence Award in 2010. His practice emphasizes same-day sick visits, longer and unhurried appointments, and house calls when appropriate.

Membership and fees

The practice is limited to approximately 400 patients, after which new names are placed on a waiting list.

Education and credentials

Education

Henjum earned his M.D. from Albert Einstein College of Medicine in the Bronx, NY, in 1985

Education

Henjum earned an A.B. in Biology from Washington University in St. Louis, MO, in 1980

Internship and residency

Henjum completed his internship and residency in internal medicine at Washington Hospital Center in Washington, D.C., from June 1985 to June 1988

Board certified

Henjum is board-certified in internal medicine by the American Board of Internal Medicine, certified since September 1988

Board certified

Henjum is also board-certified by the American Board of Hospice and Palliative Medicine, since November 2006

Membership

Henjum is affiliated with the American College of Physicians/American Society of Internal Medicine

Membership

Henjum is a member of the Montgomery County Medical Society

Membership

Henjum is a member of Med-Chi, the Medical Society of Maryland

License

Maryland D0035045 Verify with the Maryland Board of Physicians

NPI

1295820215

Location

18109 Prince Philip Drive, Suite 200, Olney, MD 20932

Directions

Recognition and research

Awards

Henjum has been named one of Washingtonian Magazine's Top Doctors.

Henjum has been recognized as one of the Best Doctors in America.

Henjum has been named a Top Rated Primary Care Physician by Washington Consumers' Checkbook.

Henjum received Montgomery General Hospital's Pillar of Excellence Award in the 4th quarter of 2010.

Publications

"Accelerated atherosclerosis in a young woman"

Southern Medical Journal, 1991

Teaching and research roles

Henjum served as Chief Resident in Internal Medicine at Washington Hospital Center from June 1988 to June 1989.

Henjum has chaired MedStar Montgomery Medical Center's Medical Ethics Committee (2000-2010) and been a member since 1992.

Henjum was a member of MedStar Montgomery Medical Center's Diabetes Advisory Committee from 2003 to 2009.

Henjum has chaired the Patient Care Committee, Department of Medicine (2007-2009) and been a member since 2001.

Henjum served as a member-at-large of the Department of Medicine's Medical Executive Staff Committee from 2000 to 2002.

Henjum chaired the Pharmacy and Therapeutics Committee from 1995 to 1997 and was a member from 1994 to 1997.

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Questions patients ask

Does Dr. Henjum take insurance, or offer a membership?

Henjum's practice charges a single annual retainer fee rather than billing insurance, and caps its patient panel at approximately 400 patients before placing new patients on a waiting list.

Is Dr. Henjum board certified?

Yes. Dr. Henjum is board certified in internal medicine and Hospice and Palliative Medicine.

Where did Dr. Henjum train?

Henjum completed his internship and residency in internal medicine at Washington Hospital Center in Washington, D.C., from June 1985 to June 1988. Henjum earned his M.D. from Albert Einstein College of Medicine in the Bronx, NY, in 1985.