Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Cyd Charisse Thomas Williams, M.D.

Sports Medicine (Neuromusculoskeletal Medicine) Physician in Saint Charles, MO · enumerated 2006.

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

National Provider Identifier

1790728632

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Registry record

Entity type Individual (Type 1)

Name Dr. Cyd Charisse Thomas Williams

Credential M.D.

Sex Female

Practice address 2310 Hwy 94 South Outer Road, Saint Charles, MO, 63303

Phone (636) 552-4275

Fax (888) 386-2172

Enumeration date Jun 14, 2006

Last updated in NPPES Feb 4, 2014

Taxonomy & licenses

204C00000X Sports Medicine (Neuromusculoskeletal Medicine) Physician Allopathic & Osteopathic Physicians · License 1999135803 (MO) Primary

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

Other identifiers

Identifier	Type	State	Issuer
204812812	Medicaid	MO	-
201597188	Other	MO	TAX IDENTIFICATION

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

What specialty is Cyd Charisse Thomas Williams?

Cyd Charisse Thomas Williams is registered in NPPES with the primary taxonomy of Sports Medicine (Neuromusculoskeletal Medicine) 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 2026-07-13. Provider record last updated 2014-02-04.