NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William Denney Zimmerman, D.O.

Neurocritical Care Physician in Maryville, TN · enumerated 2016.

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

National Provider Identifier

1275997124

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. William Denney Zimmerman
Credential D.O.
Sex Male
Practice address 463 Bmh Physicians Office Bldg, Maryville, TN, 37804
Fax (865) 980-5105
Enumeration date Apr 7, 2016
Last updated in NPPES Nov 4, 2025

Taxonomy & licenses

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 5485 (TN) Secondary
2084A2900X Neurocritical Care Physician Allopathic & Osteopathic Physicians · License 5485 (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

Other identifiers

Identifier Type State Issuer
Q089543 Medicaid TN -

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

How do I verify William Zimmerman's NPI record?
Cross-check NPI 1275997124 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1275997124 active?
Yes, as of the latest NPPES snapshot, NPI 1275997124 is active (record last updated 2025-11-04).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-04.