Dr. Alexander Craig Walsh, M.D.

Dr. Alexander Craig Walsh is a Ophthalmology Physician provider (Ophthalmology) practicing in Pasadena, CA, registered in the NPPES registry with NPI 1043301740 since 2006. The credential MD stands for Doctor of Medicine.

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NPI	1043301740
Entity type	Individual (Type 1)
Name	Dr. Alexander Craig Walsh
Credential	M.D.
Sex	Male
Practice address	301 S FAIR OAKS AVE STE 407, Pasadena, CA, 91105
Phone	2620414106
Fax	2139759118
Enumeration date	2006-09-27
Last updated in NPPES	2020-11-11

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207W00000X	Ophthalmology Physician	Primary	A079504	CA

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
W3452	Other	CA	MEDICARE
00A795040	Medicaid	CA	—
00A795040	Other	CA	BLUE SHIELD

Copy-ready billing details

Provider: Alexander Walsh, M.D.
NPI: 1043301740
Taxonomy: 207W00000X (Ophthalmology Physician)
Address: 301 S FAIR OAKS AVE STE 407, Pasadena, CA, 91105

Verify this record

Cross-check NPI 1043301740 against the authoritative CMS record: view Dr. Alexander Craig Walsh on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Alexander Walsh?

Alexander Walsh 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-11-11.