NPI Portal NPI Lookup & Verification

Frederick Russek Jr., DO

Frederick Russek Jr. is a Anesthesiology Physician provider (Anesthesiology) practicing in Gilbert, AZ, registered in the NPPES registry with NPI 1285610170 since 2005. The credential DO stands for Doctor of Osteopathic Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1285610170
Entity type Individual (Type 1)
Name Frederick Russek Jr.
Credential DO
Sex Male
Practice address Gilbert, AZ, 85295
Phone 7025562260
Enumeration date 2005-12-21
Last updated in NPPES 2025-12-16

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207L00000X Anesthesiology Physician Primary 2202 AZ
208D00000X General Practice Physician Secondary 2202 AZ

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
002002781 Medicaid NV
256661 Medicaid AZ
Copy-ready billing details
Provider: Frederick Russek, DO
NPI: 1285610170
Taxonomy: 207L00000X (Anesthesiology Physician)
Address: Gilbert, AZ, 85295

Verify this record

Cross-check NPI 1285610170 against the authoritative CMS record: view Frederick Russek Jr. on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is Frederick Russek?
Frederick Russek is registered in NPPES with the primary taxonomy of Anesthesiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-12-16.