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

Dr. Justin Peng, MD

Individual provider Rheumatology Physician · NPI 1538328141

Dr. Justin Peng, MD is a Rheumatology in Washington, District of Columbia. Graduated from Boston University School of Medicine in 2005, 21 years ago. Practices with Arthritis and Rheumatism Associates PC, a 56-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in District of Columbia, Maryland and Virginia.

Years since qualifying
21
Trained at
Boston University School of Medicine
Licensed in
DC, MD, VA
In the registry since
2008
Specialties on file
3
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

2021 K St NW Ste 300
Washington, DC 20006-1003
Phone: (301) 942-7600
Fax: (202) 419-0418
Show map & directions

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

Additional practice locations (1)

  • 8270 Willow Oaks Corporate Dr Ste 150, Fairfax, VA 22031-4530 — (301) 942-7600

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence MD037073 (DC)
Rheumatology Physician Taxonomy 207RR0500X · Licence 0101242489 (VA)
Rheumatology Physician Taxonomy 207RR0500X · Licence D0072143 (MD)

Record details

NPI number1538328141
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 9, 2008
Last updated in NPPESFebruary 5, 2026
Certification dateFebruary 5, 2026

Medicare enrollment

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

Medicare specialtyRHEUMATOLOGY
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Arthritis And Rheumatism Associates Pc — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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