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Dr. Robert Simpson Williams, MD

Urology Physician in Fishers, IN · enumerated 2006.

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

National Provider Identifier

1851339709

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Registry record

Entity type Individual (Type 1)
Name Dr. Robert Simpson Williams
Credential MD
Sex Male
Practice address 14300 E 138th St Bldg A, Fishers, IN, 46037
Phone (317) 813-1660
Fax (317) 813-1667
Enumeration date Jun 3, 2006
Last updated in NPPES Aug 28, 2026

Taxonomy & licenses

208800000X Urology Physician Allopathic & Osteopathic Physicians · License 01037193A (IN) 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
100106860A Medicaid IN -

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

Is NPI 1851339709 active?
Yes, as of the latest NPPES snapshot, NPI 1851339709 is active (record last updated 2026-08-28).
How do I verify Robert Williams's NPI record?
Cross-check NPI 1851339709 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-28.