Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen Y Cesar, M.D.

Surgery Physician in Bellingham, WA · enumerated 2005.

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

National Provider Identifier

1518965540

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Registry record

Entity type Individual (Type 1)

Name Stephen Y Cesar

Credential M.D.

Sex Male

Practice address 4545 Cordata Pkwy, Bellingham, WA, 98226

Phone (360) 738-2200

Fax (360) 752-5668

Enumeration date Jul 13, 2005

Last updated in NPPES Sep 22, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License MD00020489 (WA) 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
1518965540	Medicaid	WA	-
5242337	Other	WA	AETNA
6552CE	Other	WA	REGENCE
0230368	Other	WA	L&I/CRIME VICTIMS

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

What is the NPI number for Stephen Cesar?

The National Provider Identifier (NPI) for Stephen Cesar is 1518965540, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stephen Cesar practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-09-22.