Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. John P Rzyhak, CRNA

Q: What is the NPI number for John Rzyhak?

The National Provider Identifier (NPI) for John Rzyhak is 1215085345, a Type 1 (individual) record in the CMS NPPES registry.

Certified Registered Nurse Anesthetist in Saginaw, MI · enumerated 2007.

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

National Provider Identifier

1215085345

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Registry record

Entity type Individual (Type 1)

Name Mr. John P Rzyhak

Credential CRNA

Sex Male

Practice address 1447 N Harrison St, Saginaw, MI, 48602

Phone (989) 583-6237

Fax (989) 583-6575

Enumeration date Jan 8, 2007

Last updated in NPPES May 20, 2014

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 4704145851 (MI) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does John Rzyhak practice?

The practice location on file with NPPES is in Saginaw, MI. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Rzyhak?

The National Provider Identifier (NPI) for John Rzyhak is 1215085345, 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 2014-05-20.