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

Brian Alexander Lenser, MD

Ophthalmology Physician in Modesto, CA · enumerated 2006 · practices at Modesto Pediatrics.

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

National Provider Identifier

1275504524

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Registry record

Entity type Individual (Type 1)

Name Brian Alexander Lenser

Credential MD

Sex Male

Practice address Modesto, CA, 95355

Phone (209) 572-8528

Fax (209) 572-8530

Enumeration date Jan 26, 2006

Last updated in NPPES Oct 15, 2010

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

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License G75079 (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
00G750791	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.

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Frequently asked questions

What specialty is Brian Lenser?

Brian Lenser 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.

Other providers at this practice address

Browse all →

Dena Lenser Pediatrics Physician · Modesto, CA NPI 1245201599 Ann Truscello Pediatrics Physician · Modesto, CA NPI 1437120532 Modesto Pediatrics Pediatrics Physician · Modesto, CA NPI 1366547796

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-15.