Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark Daniel Lin MD., Inc

Internal Medicine Physician in San Dimas, CA · enumerated 2020 · authorized official Mark Lin, President/Ceo.

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

National Provider Identifier

1609402767

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Registry record

Entity type Organization (Type 2)

Legal business name Mark Daniel Lin MD., Inc

Practice address 214 Rebecca Dr, San Dimas, CA, 91773

Phone (661) 556-1123

Enumeration date Mar 19, 2020

Last updated in NPPES Mar 19, 2020

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Mark Lin

Title President/Ceo

Phone (661) 556-1123

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 current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-03-19. Verify at npiregistry.cms.hhs.gov.

Where is Mark Daniel Lin MD., Inc located?

The practice location on file with NPPES is in San Dimas, CA.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-03-19.