Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Michael Shawn Neff, D.O.

Family Medicine Physician in Fort Wainwright, AK · enumerated 2006.

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

National Provider Identifier

1720021421

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Registry record

Entity type Individual (Type 1)

Name Dr. Michael Shawn Neff

Credential D.O.

Sex Male

Practice address 4076 Neely Rd, Basset Army Community Hospital, Fort Wainwright, AK, 99703

Phone (907) 361-5322

Fax (907) 361-4386

Enumeration date Jun 13, 2006

Last updated in NPPES Dec 5, 2019

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License DOS-1097 (HI) Primary

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

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

Is NPI 1720021421 active?

Yes, as of the latest NPPES snapshot, NPI 1720021421 is active (record last updated 2019-12-05).

How do I verify Michael Neff's NPI record?

Cross-check NPI 1720021421 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-12-05.