John Rzyhak, CRNA
NPI 1215085345 · Certified Registered Nurse Anesthetist · Saginaw, MI
John Rzyhak, CRNA is a Certified Registered Nurse Anesthetist provider in Saginaw, MI (NPI 1215085345).
Provider details
- NPI number
- 1215085345
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CRNA
- Sex
- Male
- Sole proprietor
- No
- License
- 4704145851 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-08
- Last updated
- 2014-05-20
Frequently asked questions
- What is John Rzyhak's NPI number?
- John Rzyhak's National Provider Identifier (NPI) is 1215085345, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Rzyhak's specialty?
- John Rzyhak is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John Rzyhak located?
- John Rzyhak's practice location on file with NPPES is 1447 N Harrison St, Saginaw, MI 48602-4727.
- What is John Rzyhak's phone number?
- The practice phone number listed in the NPPES registry for John Rzyhak is (989) 583-6237.
- Is John Rzyhak's NPI active?
- Yes — John Rzyhak's NPI (1215085345) is active in the NPPES registry as of the last update on 2014-05-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.