Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Carl Mark Williams, MD

Anesthesiology Physician in Kansas City, MO · enumerated 2006.

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

National Provider Identifier

1588618110

Verified

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Registry record

Entity type Individual (Type 1)

Name Dr. Carl Mark Williams

Credential MD

Sex Male

Practice address 4401 Wornall Rd, Cardiothoracic Anesthesia Dept, Kansas City, MO, 64111

Phone (816) 389-6030

Fax (816) 389-6034

Enumeration date May 19, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 100072 (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
00283	Other	MO	MO FHP PROVIDER NUMBER
050088893	Other	MO	MO RR MEDICARE NUMBER
20741071	Other	MO	MO BCBS PROVIDER NUMBER
100138390F	Medicaid	MO	-
206947343	Medicaid	MO	-

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

What specialty is Carl Williams?

Carl Williams is registered in NPPES with the primary taxonomy of Anesthesiology 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.