Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joseph K Davidson, M.D.

Ophthalmology Physician in Pasadena, CA · enumerated 2006 · practices at Joseph Davidson, MD, A Medical Corporation.

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

National Provider Identifier

1467487926

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Registry record

Entity type Individual (Type 1)

Name Dr. Joseph K Davidson

Credential M.D.

Sex Male

Practice address 301 S Fair Oaks Ave Ste 406, Pasadena, CA, 91105

Phone (626) 577-5437

Enumeration date Jul 12, 2006

Last updated in NPPES May 28, 2018

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License G86649 (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
2539751	Medicaid	CA	-

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 specialty is Joseph Davidson?

Joseph Davidson is registered in NPPES with the primary taxonomy of Ophthalmology 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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Joseph Davidson, MD, A Medical Corporation Ophthalmology Physician · Pasadena, CA NPI 1790716884

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-28.