Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John Andrew Gianitsis II, CRNA

Certified Registered Nurse Anesthetist in Oakland, CA · enumerated 2016.

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

National Provider Identifier

1346607520

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Registry record

Entity type Individual (Type 1)

Name Mr. John Andrew Gianitsis II

Credential CRNA

Sex Male

Practice address 3600 Broadway, Oakland, CA, 94611

Phone (510) 752-6238

Enumeration date Jan 19, 2016

Last updated in NPPES Jan 26, 2022

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License TRN346010 (NV) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 95099966 (CA) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License RN65584 (ME) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 063734-21 (NH) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 063734-21 (NH) Secondary

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 95000637 (CA) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA 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.

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Frequently asked questions

How do I verify John Gianitsis's NPI record?

Cross-check NPI 1346607520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1346607520 active?

Yes, as of the latest NPPES snapshot, NPI 1346607520 is active (record last updated 2022-01-26).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-26.