Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sarah Williams, MD

Physical Medicine & Rehabilitation Physician in Chattanooga, TN · enumerated 2018 · practices at Chattanooga Spine & Rehabilitation Pllc.

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

National Provider Identifier

1588161905

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Registry record

Entity type Individual (Type 1)

Name Sarah Williams

Credential MD

Sex Female

Practice address 1 Siskin Plz Ste 101, Chattanooga, TN, 37403

Phone (423) 803-2226

Fax (423) 803-2222

Enumeration date Apr 11, 2018

Last updated in NPPES Feb 8, 2023

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 66004 (TN) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 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.

What specialty is Sarah Williams?

Sarah Williams is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-08.