Doctor profile · Federal record

Dr. Gregory Niderost

Certified Registered Nurse Anesthetist (CMS: Certified Registered Nurse Anesthetist (CRNA)) · Willits, CA

  • NPI 1255319679
  • Accepts Medicare
  • 36 yrs in practice
  • Male
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1 Madrone St
Willits, CA 954904225
(707) 456-3171

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
July 8, 2007
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
367500000X — NUCC code
State license (1)
California #1602

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255319679. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
33
Distinct HCPCS
2
Medicare allowed
$11,301
HCPCS Description Services Patients Avg allowed
01402 Anesthesia for procedure for total knee joint replacement 17 16 $324
01214 Anesthesia for total hip replacement 16 16 $362

In context: peer comparison

Among 1 peers in Willits Certified Registered Nurse Anesthetist, average services per provider: 16. This provider delivers 2.1× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Niderost's medical specialty?
Dr. Gregory Niderost practices Certified Registered Nurse Anesthetist in Willits, CA.
Where does Dr. Gregory Niderost practice?
Dr. Gregory Niderost practices at 1 Madrone St, Willits, CA 954904225. Office phone: 7074563171.
What is Dr. Gregory Niderost's NPI?
Dr. Gregory Niderost's National Provider Identifier (NPI) is 1255319679, issued by NPPES.
Does Dr. Gregory Niderost accept Medicare assignment?
Yes. Dr. Gregory Niderost accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Niderost commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for procedure for total knee joint replacement (HCPCS 01402); Anesthesia for total hip replacement (HCPCS 01214). Source: CMS Medicare Physician & Other Practitioners file.