Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Melvin J Butler, MD

Internal Medicine Physician in Clayton, MO · enumerated 2006.

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

National Provider Identifier

1841278850

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Registry record

Entity type Individual (Type 1)

Name Dr. Melvin J Butler

Credential MD

Sex Male

Practice address 950 Francis Pl, Ste 317, Clayton, MO, 63105

Phone (314) 721-6936

Fax (314) 721-6915

Enumeration date Jan 9, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 108197 (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
107860	Other	-	BCBS MO
97986	Other	-	GHP
1770	Other	-	HEALTHCARE USA
0402566	Other	-	UHC
335147	Other	-	HEALTHLINK
G13037	Other	-	MERCY

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

How do I verify Melvin Butler's NPI record?

Cross-check NPI 1841278850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1841278850 active?

Yes, as of the latest NPPES snapshot, NPI 1841278850 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.