Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Robert Simpson Williams, MD
Urology Physician in Muncie, 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 2525 W University Ave, Suite 504, Muncie, IN, 47303
Phone (765) 289-7127
Fax (765) 289-8628
Enumeration date Jun 3, 2006
Last updated in NPPES Jun 12, 2013
Taxonomy & licenses
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 |
|---|---|---|---|
| 000000091191 | Other | IN | BLUE CROSS |
| 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.
Frequently asked questions
Is NPI 1851339709 active?
Yes, as of the latest NPPES snapshot, NPI 1851339709 is active (record last updated 2013-06-12).
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.
Other providers at this practice address
Browse all → Paul Stewart Surgery Physician · Muncie, IN NPI 1295739100 Prakash Bhoopalam Pediatrics Physician · Muncie, IN NPI 1942208905 Anne Eliades Pediatrics Physician · Muncie, IN NPI 1154320992 Derrick Rogers Otolaryngology Physician · Muncie, IN NPI 1013916345 Susan Borregard Surgical Physician Assistant · Muncie, IN NPI 1184624801 Thomas Whiteman Otolaryngology Physician · Indianapolis, IN NPI 1780686790 Luke Philippsen Otolaryngology Physician · Muncie, IN NPI 1861494627 Jonathan Schmidt Otolaryngology Physician · Muncie, IN NPI 1699777201
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-12.