Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Errol Andrew Craig, M.D., PHD

Dermatology Physician in Walnut Creek, CA · enumerated 2006 · practices at Kaiser Medical Offices.

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

National Provider Identifier

1659344281

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Registry record

Entity type Individual (Type 1)

Name Dr. Errol Andrew Craig

Credential M.D., PHD

Sex Male

Practice address 320 Lennon Ln, Walnut Creek, CA, 94598

Phone (925) 817-5600

Fax (925) 817-5601

Enumeration date Feb 13, 2006

Last updated in NPPES Dec 13, 2021

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License C31732 (CA) Primary

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

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

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.

What specialty is Errol Craig?

Errol Craig is registered in NPPES with the primary taxonomy of Dermatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-13.