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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michael Heslin, D.O.

Physical Medicine & Rehabilitation Physician in Knoxville, TN · enumerated 2020.

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

National Provider Identifier

1639791031

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Registry record

Entity type Individual (Type 1)
Name Michael Heslin
Credential D.O.
Sex Male
Practice address 1600 Accelerator Way Ste 200, Knoxville, TN, 37920
Phone (865) 558-4400
Fax (865) 546-9047
Enumeration date May 8, 2020
Last updated in NPPES Jan 14, 2026

Taxonomy & licenses

208VP0000X Pain Medicine Physician Allopathic & Osteopathic Physicians · License 6110 (TN) Secondary
208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 6110 (TN) 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.

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Frequently asked questions

Is NPI 1639791031 active?
Yes, as of the latest NPPES snapshot, NPI 1639791031 is active (record last updated 2026-01-14).
How do I verify Michael Heslin's NPI record?
Cross-check NPI 1639791031 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 2026-01-14.