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

Individual provider Internal Medicine Physician · NPI 1588817498

Dr. Onyekachi Wenceslaus Egwim, MD is an Internal Medicine in Washington, District of Columbia. Qualified in 2004, 22 years ago. Practices with Kaiser Foundation Health Plan of the Mid Atlantic States, Inc, a 1,934-clinician group and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
22
Licensed in
MD
In the registry since
2008
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
Washington, DC 20060-0001
Phone: (202) 865-6100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence D72271 (MD)

Record details

NPI number1588817498
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 23, 2008
Last updated in NPPESAugust 2, 2022
Certification dateAugust 2, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2004 (22 years in practice)
Group practice Kaiser Foundation Health Plan Of The Mid Atlantic States, Inc — 1934 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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