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DR. AARON JEFFREY BROWN MD
NPI 1922628304
Internal Medicine - Gastroenterology in Bethesda, MD

Active since April 25, 2020
8901 ROCKVILLE PIKE, BETHESDA, MD 20889(301) 295-4000 Get Directions Write a Review

NPPES record last updated: May 13, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 13, 2025, Jul 28, 2023, Jul 22, 2022 and 1 more (4 updates tracked since 2020).

About Dr. Aaron Jeffrey Brown Md NPPES

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

DR. AARON JEFFREY BROWN MD (NPI 1922628304) is an individual gastroenterology provider in Bethesda, Maryland, licensed in Nebraska (34504) and active in the NPI registry since April 2020.

NPPES Registry Identity

NPI1922628304
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. AARON JEFFREY BROWNCredential: MD
Location Address8901 ROCKVILLE PIKEBethesda, MD 20889-1716
Mailing Address8901 Rockville PikeBethesda, MD 20889-5095 · (209) 324-9444
Phone(301) 295-4000
Sole ProprietorNo
Enumeration DateApril 25, 2020
Last NPPES UpdateMay 13, 20254 updates tracked since enumeration
NPPES CertifiedMay 13, 2025
✔ NPI 1922628304 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in NE · 34504
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedGeneral PracticeTaxonomy 208D00000X · License 34504 (NE)
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
8901 ROCKVILLE PIKE, Bethesda, MD 20889
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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.

DR. LIESL SHOCKLEY GRENIER M.D.
Dermatology (Dermatopathology)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
MEGAN JUDITH LENIHAN MD
Surgery
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
JOHNS HOPKINS UNIVERSITY
Internal Medicine (Endocrinology, Diabetes & Metabolism)
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 400-1382
NATASHA ANTONY MD
Obstetrics & Gynecology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4600
MATTHEW NICHOLAS RIBEIRO MD
Anesthesiology
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4000
MR. ANDREW JOSEPH ULLMANN JR. DO
Internal Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (908) 635-6978
BRYCE TANNER GARDNER DMD
Military Health Care Provider
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4340
PARESH RAM PATEL MD
Emergency Medicine
8901 ROCKVILLE PIKE
BETHESDA, MD 20889
Montgomery County (301) 295-4810

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 Aaron Brown's NPI number?

The NPI number for Aaron Brown is 1922628304. It was assigned to this individual provider in the NPPES registry on April 25, 2020.

Where is Aaron Brown located?

Aaron Brown practices at 8901 Rockville Pike, Bethesda, MD 20889. The listed phone number is (301) 295-4000.

What is Aaron Brown's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

When was this NPI record last updated?

The NPPES record for Aaron Brown was last updated on May 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.