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

Dr. Chester C Granka, DC

Chiropractor in Oroville, CA · enumerated 2007.

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

National Provider Identifier

1952451676

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Registry record

Entity type Individual (Type 1)

Name Dr. Chester C Granka

Credential DC

Sex Male

Practice address Oroville, CA, 95966

Phone (530) 532-0455

Fax (530) 532-1135

Enumeration date Jan 12, 2007

Last updated in NPPES Nov 1, 2011

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License CA14381 (CA) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Chester Granka's NPI record?

Cross-check NPI 1952451676 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952451676 active?

Yes, as of the latest NPPES snapshot, NPI 1952451676 is active (record last updated 2011-11-01).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-01.