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

Dr. Rahma Mustafa Nyanganyi, MD

Individual provider Internal Medicine Physician · NPI 1609048636

Dr. Rahma Mustafa Nyanganyi, MD practises Internal Medicine in Fairfax, Virginia. Graduated from Pennsylvania State University College of Medicine in 2004, 22 years ago. Practices with Fair Oaks Hospitalist Physicians, PLLC, a 61-clinician group and accepts Medicare assignment. Licensed in Virginia.

Years since qualifying
22
Trained at
Pennsylvania State University College of Medicine
Licensed in
VA
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

3600 Joseph Siewick Dr
Fairfax, VA 22033-1709 Not confirmed with CMS for 13 years — call before visiting
Phone: (270) 744-9600
Fax: (270) 744-0834
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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 0101242057 (VA)

Record details

NPI number1609048636
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 31, 2008
Last updated in NPPESSeptember 25, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2004 (22 years in practice)
Group practice Fair Oaks Hospitalist Physicians, Pllc — 61 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients272
Services billed 671 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Fair Oaks Hospitalist Physicians, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 61 clinicians in the practice; 12 are shown here.

Other providers in Fairfax