Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Kenneth H Williams, M.D.

Internal Medicine Physician in Catonsville, MD · enumerated 2006.

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

National Provider Identifier

1649213240

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Registry record

Entity type Individual (Type 1)

Name Dr. Kenneth H Williams

Credential M.D.

Sex Male

Practice address 6501 Baltimore National Pike Ste D, Catonsville, MD, 21228

Phone (667) 234-2100

Fax (667) 234-2944

Enumeration date Jun 13, 2006

Last updated in NPPES Apr 27, 2018

Taxonomy & licenses

207RG0300X Geriatric Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License D0033448 (MD) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License D0033448 (MD) 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
439751700	Medicaid	MD	-

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 is the NPI number for Kenneth Williams?

The National Provider Identifier (NPI) for Kenneth Williams is 1649213240, a Type 1 (individual) record in the CMS NPPES registry.

Where does Kenneth Williams practice?

The practice location on file with NPPES is in Catonsville, MD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-27.