Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Cal Matsumoto, MD

Transplant Surgery Physician in Washington, DC · enumerated 2005.

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

National Provider Identifier

1457349987

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Cal Matsumoto

Credential MD

Sex Male

Practice address 3800 Reservoir Rd Nw, Washington, DC, 20007

Phone (202) 444-3700

Enumeration date Oct 10, 2005

Last updated in NPPES Mar 9, 2012

Taxonomy & licenses

204F00000X Transplant Surgery Physician Allopathic & Osteopathic Physicians · License 33199 (DC) 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
P00678665	Other	DC	RAILROAD MEDICARE

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Cal Matsumoto practice?

The practice location on file with NPPES is in Washington, DC. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Cal Matsumoto?

The National Provider Identifier (NPI) for Cal Matsumoto is 1457349987, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-09.