Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Gregory Allan Niderost

Individual provider Certified Registered Nurse Anesthetist · NPI 1255319679

Mr. Gregory Allan Niderost is a Certified Registered Nurse Anesthetist (CRNA) in Willits, California. Qualified in 1990, 36 years ago. Practices with Willits Hospital Inc, a 67-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Licensed in
CA
In the registry since
2006

Practice location Address checks out

1 Madrone St
Willits, CA 95490-4225
Phone: (707) 456-3171
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 1602 (CA)

Record details

NPI number1255319679
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJanuary 5, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Willits Hospital Inc — 67 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Willits