Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Karsten Groth Gryziec, LAC, CMT

Acupuncturist in San Francisco, CA · enumerated 2008.

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

National Provider Identifier

1114171865

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Registry record

Entity type Individual (Type 1)

Name Mr. Karsten Groth Gryziec

Credential LAC, CMT

Sex Male

Practice address 1317 18th St, San Francisco, CA, 94107

Phone (415) 601-2532

Enumeration date Nov 7, 2008

Last updated in NPPES Nov 7, 2008

Taxonomy & licenses

171100000X Acupuncturist Other Service Providers · License 11343 (CA) Primary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC 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

Is NPI 1114171865 active?

Yes, as of the latest NPPES snapshot, NPI 1114171865 is active (record last updated 2008-11-07).

How do I verify Karsten Gryziec's NPI record?

Cross-check NPI 1114171865 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Diane O'Keefe Chiropractor · San Francisco, CA NPI 1124359484 Patricia Watters Acupuncturist · San Francisco, CA NPI 1851612808 Ann Brinkley Chiropractor · San Francisco, CA NPI 1093011629 Seth Ambrose Marriage & Family Therapist · San Francisco, CA NPI 1417487893

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-07.