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Dr. Frank John Lang Jr., M.D.

Family Medicine Physician in Grass Valley, CA · enumerated 2005.

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

National Provider Identifier

1417942939

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Registry record

Entity type Individual (Type 1)
Name Dr. Frank John Lang Jr.
Credential M.D.
Sex Male
Practice address 1345 Whispering Pines Ln, Grass Valley, CA, 95945
Phone (530) 273-9340
Fax (530) 273-7255
Enumeration date Sep 12, 2005
Last updated in NPPES Nov 29, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License G808370 (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
00G808370 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

Where does Frank Lang practice?
The practice location on file with NPPES is in Grass Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Frank Lang?
The National Provider Identifier (NPI) for Frank Lang is 1417942939, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-11-29.