Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark Lin, MD

Internal Medicine Physician in Bakersfield, CA · enumerated 2005.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1528050754

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Registry record

Entity type Individual (Type 1)

Name Dr. Mark Lin

Credential MD

Sex Male

Practice address 4580 California Ave, Bakersfield, CA, 93309

Phone (661) 327-4411

Enumeration date Aug 15, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A75404 (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

How do I verify Mark Lin's NPI record?

Cross-check NPI 1528050754 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1528050754 active?

Yes — as of the latest NPPES snapshot, NPI 1528050754 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.