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MARSHALL WALTON WALLER MD
NPI 1093394157
Internal Medicine in Washington, DC

Active since April 06, 2021
50 IRVING ST NW, WASHINGTON, DC 20422(202) 745-8000(202) 745-2212 Get Directions Write a Review

NPPES record last updated: March 3, 2025. Verified against the NPPES registry weekly; last sync: September 06, 2026.

Record update history: Mar 3, 2025, Apr 6, 2021 (2 updates tracked since 2021).

About Marshall Walton Waller Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARSHALL WALTON WALLER MD (NPI 1093394157) is an individual internal medicine provider in Washington, District Of Columbia, licensed in District Of Columbia (MD600001638) and active in the NPI registry since April 2021.

NPPES Registry Identity

NPI1093394157
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMARSHALL WALTON WALLERCredential: MD
Location Address50 IRVING ST NWWashington, DC 20422-0001
Mailing Address2150 Pennsylvania Ave NwWashington, DC 20037-3201 · (202) 741-3000
Phone(202) 745-8000
Fax(202) 745-2212
Sole ProprietorYes
Enumeration DateApril 6, 2021
Last NPPES UpdateMarch 3, 20252 updates tracked since enumeration
NPPES CertifiedMarch 3, 2025
✔ NPI 1093394157 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in DC · MD600001638
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
50 IRVING ST NW, Washington, DC 20422
Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JULIANA O ANAMELECHI
Pharmacist
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8000
JANELLE AYANA PHILLIP MSW
Social Worker (Clinical)
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8000
DR. JESSICA LEE LENDERTS DNP, FNP-BC
Nurse Practitioner (Family)
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8000
DR. VASILIOS PAPADEMETRIOU MD
Internal Medicine (Cardiovascular Disease)
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8334
VA MEDICAL CENTER,WASHINGTON,D.C.
Military Hospital (Military General Acute Care Hospital)
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8113
MS. MARLA SUE BRUNDIES LISW
Social Worker (Clinical)
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8000
ANDREA L. MEEHAN OTR/L
Occupational Therapist
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8000
AHMADU MUCTARR JALLOH SOCIAL WORKER
Social Worker (Clinical)
50 IRVING ST NW
WASHINGTON, DC 20422
District of Columbia (202) 745-8000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Marshall Waller's NPI number?

The NPI number for Marshall Waller is 1093394157. It was assigned to this individual provider in the NPPES registry on April 6, 2021.

Where is Marshall Waller located?

Marshall Waller practices at 50 Irving St NW, Washington, DC 20422. The listed phone number is (202) 745-8000.

What is Marshall Waller's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for Marshall Waller was last updated on March 3, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.