Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Shaun David Carstairs, M.D.

Emergency Medicine Physician in Chula Vista, CA · enumerated 2006.

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

National Provider Identifier

1255301602

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Registry record

Entity type Individual (Type 1)

Name Dr. Shaun David Carstairs

Credential M.D.

Sex Male

Practice address 435 H St, Chula Vista, CA, 91910

Phone (619) 691-7290

Enumeration date Jan 26, 2006

Last updated in NPPES May 28, 2025

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 326862 (LA) Secondary

207PT0002X Medical Toxicology (Emergency Medicine) Physician Allopathic & Osteopathic Physicians · License A71434 (CA) Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License A71434 (CA) 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
00A714340	Medicaid	CA	-
2687271	Medicaid	LA	-

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 Shaun Carstairs?

Shaun Carstairs is registered in NPPES with the primary taxonomy of Emergency Medicine 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 2025-05-28.