Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

John Lloyd Espinosa, M.D.

Nuclear Imaging & Therapy Physician in Mount Vernon, WA · enumerated 2006.

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

National Provider Identifier

1982646758

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Registry record

Entity type Individual (Type 1)

Name John Lloyd Espinosa

Credential M.D.

Sex Male

Practice address Mount Vernon, WA, 98274

Phone (360) 428-2211

Enumeration date Jun 13, 2006

Last updated in NPPES Sep 11, 2025

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207U00000X Nuclear Medicine Physician Allopathic & Osteopathic Physicians · License MD00010959 (WA) Secondary

207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians · License MD00010959 (WA) Secondary

207UN0902X Nuclear Imaging & Therapy Physician Allopathic & Osteopathic Physicians · License MD00010959 (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
8113409	Medicaid	WA	-

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

What specialty is John Espinosa?

John Espinosa is registered in NPPES with the primary taxonomy of Nuclear Imaging & Therapy Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.