Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alan Ken Matsumoto, M.D.

Rheumatology Physician in Wheaton, MD · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043219298

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Registry record

Entity type Individual (Type 1)

Name Alan Ken Matsumoto

Credential M.D.

Sex Male

Practice address 2730 University Blvd W, Suite 310, Wheaton, MD, 20902

Phone (301) 942-7600

Fax (301) 942-3132

Enumeration date Jul 19, 2005

Last updated in NPPES Mar 11, 2021

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License D0036867 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
103774	Other	-	FIRST HEALTH
1847871	Other	-	UNITED HEALTHCARE
493058	Other	-	NCPPO
090361200	Medicaid	MD	-
21470	Other	-	PRIORITY PARTNERS
7169832	Other	-	MAMSI
0004482962	Other	-	AETNA
397348	Other	-	ALLIANCE
0009	Other	DC	CAREFIRST OF DC
52147007	Other	MD	CAREFIRST OF MARYLAND

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

How do I verify Alan Matsumoto's NPI record?

Cross-check NPI 1043219298 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043219298 active?

Yes, as of the latest NPPES snapshot, NPI 1043219298 is active (record last updated 2021-03-11).

Other providers at this practice address

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Montgomery Foot and Ankle Associates Foot & Ankle Surgery Podiatrist · Wheaton, MD NPI 1003812124 Herbert Baraf Rheumatology Physician · Wheaton, MD NPI 1063411494 Robert Rosenberg Rheumatology Physician · Wheaton, MD NPI 1598764482 Brian Avin Specialist · Wheaton, MD NPI 1851379754 Eric Oristian Surgery Physician · Wheaton, MD NPI 1154301380 Eric Jeffries Neurology Physician · Wheaton, MD NPI 1790757045 Clay Risk Anesthesiology Physician · Wheaton, MD NPI 1922065457 Vanessa Fenner Anesthesiology Physician · Wheaton, MD NPI 1518924372

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-11.