Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mark S. Johnson, MD

Individual provider Family Medicine Physician · NPI 1659462190

Mark S. Johnson, MD is a Family Practice in Washington, District of Columbia. Graduated from Rutgers New Jersey Medical School in 1979, 47 years ago. Practices with Howard University, a 182-clinician group, works from 3 locations, accepts Medicare assignment and offers telehealth. Licensed in New Jersey.

Years since qualifying
47
Trained at
Rutgers New Jersey Medical School
Licensed in
NJ
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

2041 Georgia Ave NW # T3200
Washington, DC 20060
Phone: (202) 865-4440
Fax: (202) 865-3214
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 90 Bergen St, Newark, NJ 07103-2425 — (973) 972-2111
  • 90 Bergen St, Newark, NJ 07103-2425 — (973) 972-2111

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 25MA05722100 (NJ)

Record details

NPI number1659462190
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESNovember 8, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolRUTGERS NEW JERSEY MEDICAL SCHOOL
Graduated 1979 (47 years in practice)
Group practice Howard University — 182 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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