NPI Portal NPI Lookup & Verification

Dr. William E Clutter, MD

Dr. William E Clutter is a General Practice Physician provider (General Practice) practicing in Saint Louis, MO, registered in the NPPES registry with NPI 1073531521 since 2006. The credential MD stands for Doctor of Medicine.

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NPI 1073531521
Entity type Individual (Type 1)
Name Dr. William E Clutter
Credential MD
Sex Male
Practice address 4950 CHILDRENS PL, DEPT INTERNAL MED, Saint Louis, MO, 63110
Phone 3143625060
Fax 3143626959
Enumeration date 2006-07-17
Last updated in NPPES 2025-05-28

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207RE0101X Endocrinology, Diabetes & Metabolism Physician Secondary R7472 MO
208D00000X General Practice Physician Primary R7472 MO

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
201263100 Medicaid MO
Copy-ready billing details
Provider: William Clutter, MD
NPI: 1073531521
Taxonomy: 208D00000X (General Practice Physician)
Address: 4950 CHILDRENS PL, DEPT INTERNAL MED, Saint Louis, MO, 63110

Other providers at this practice address

NPI Name Type Specialty Location
1841221116 Washington University Organization End-Stage Renal Disease (ESRD) Treatment Clinic/Center Saint Louis, MO
1477579787 Rakhee Bhayani Individual Internal Medicine Physician Saint Louis, MO
1306862628 Barbara Lutey Individual Internal Medicine Physician Saint Louis, MO
1265458483 Walton Sumner Individual Family Medicine Physician Saint Louis, MO
1578580007 Katherine Henderson Individual General Practice Physician Saint Louis, MO
1023036464 Thomas Defer Individual Internal Medicine Physician Saint Louis, MO
1467470195 Brian Gage Individual Internal Medicine Physician Saint Louis, MO
1437256468 Melvin Blanchard Individual Internal Medicine Physician Saint Louis, MO

Verify this record

Cross-check NPI 1073531521 against the authoritative CMS record: view Dr. William E Clutter on the official NPPES registry .

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 or validate an NPI number.

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 William Clutter?
William Clutter is registered in NPPES with the primary taxonomy of General Practice Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2025-05-28.