Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum
Contra Costa Obstetrics Gynecology & Infertility Medical Group Inc
Obstetrics & Gynecology Physician in Walnut Creek, CA · enumerated 2006 · authorized official Elwood Kronick, Chairman.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801994330
See something wrong? Report a correction
Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| ZZZ73673Z | 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.
Frequently asked questions
What is the NPI number for Contra Costa Obstetrics Gynecology & Infertility Medical Group Inc?
Who is the authorized official for Contra Costa Obstetrics Gynecology & Infertility Medical Group Inc?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-08-21.