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

Dr. Maren K Ketcham, MD

Individual provider Internal Medicine Physician · NPI 1427410141

Dr. Maren K Ketcham, MD is an Internal Medicine in Washington, District of Columbia. Qualified in 2016, 10 years ago. Practices with One Medstar Primary Care LLC, a 140-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Maryland.

Years since qualifying
10
Licensed in
MD
In the registry since
2016
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

1001 G St NW Ste 200E
Washington, DC 20001-4546
Phone: (888) 663-6331
Fax: (415) 252-7176
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 2333 Ontario Rd Nw, Washington, DC 20009-2627 — (202) 483-8196
  • 1040 Park Ave, Baltimore, MD 21201-5633 — (443) 738-0300
  • 4401 Penn Ave, Pittsburgh, PA 15224-1334 — (412) 692-5285

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D0089431 (MD)

Record details

NPI number1427410141
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 22, 2016
Last updated in NPPESMarch 17, 2025
Certification dateMarch 17, 2025

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice One Medstar Primary Care Llc — 140 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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