Individual provider Active NPI

Robert Simpson Williams, MD

  • Urology Physician
  • Fishers, IN
National Provider Identifier
1851339709
Registry record updated Aug 28, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Urology PhysicianTaxonomy code 208800000X
License
01037193A Issued in IN
Practice address
14300 E 138TH St BLDG a
Fishers, IN 46037-0087
Phone
(317) 813-1660
Fax
(317) 813-1667
NPI assigned
Jun 3, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 28, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Urology Physician 208800000X 01037193A IN Primary

Addresses

Primary practice location

14300 E 138TH St BLDG a
Fishers, IN 46037-0087

Mailing address

679 E County Line Rd
Greenwood, IN 46143-1049
Phone (317) 890-2000

Other identifiers 1

IdentifierTypeStateIssuer
100106860AMedicaidIN

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IN
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20100217000041 IN Practitioner - Urology 9931290814 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Urology
Education
Indiana University School of Medicine, 1984
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Urology Associates LLCGroup PAC ID 5799876678, 6 clinicians

Practice addresses (Care Compare)

141 W 22ND St
Suite 213
Anderson, IN 46016-4389
Phone (765) 289-7444

Hospital & facility affiliations

  • Ascension St Vincent Anderson Hospital, Anderson, IN, CCN 150088
  • Ascension St Vincent Randolph Hospital, Winchester, IN, CCN 151301
  • Indiana University Health Ball Memorial Hospital Hospital, Muncie, IN, CCN 150089
  • Community Hospital of Anderson and Madison County Hospital, Anderson, IN, CCN 150113
  • Henry County Memorial Hospital Hospital, New Castle, IN, CCN 150030

Merit-based Incentive Payment System (MIPS)

Final score
100 of 100Reported as group
Promoting interoperability
100
Improvement activities
40

Procedures performed for Medicare patients

ProcedureNumber of procedures
Prostate resection16

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
01037193INMDUrology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Urology Associates, LLC Urology CurrentSince Jan 1, 1996 Accepting new patients
Urology Associates, LLC Urology CurrentSince Jan 1, 1996 Accepting new patients
Major Hospital Past Accepting new patients

Locations

141 W 22nd St
Ste 213
Anderson, IN 46016
Phone (317) 643-0766

2525 W University Ave
Ste 504
Muncie, IN 47303
Phone (765) 289-7127

505 New York Ave
New Castle, IN 47362
Phone (765) 599-3800

500 W Votaw St
Portland, IN 47371
Phone (260) 726-6515

473 SE Greenville Ave
Winchester, IN 47394
Phone (765) 584-0004

Interoperability endpoints

  • Direct secure messaging: robertwilliams@urassoc.medalliesdirect.net
  • Direct secure messaging: rwilliams63249@ecommunitydirect.com

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 5

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1149292800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787875200000",
    "number": "1851339709",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "679 E COUNTY LINE RD",
            "city": "GREENWOOD",
            "state": "IN",
            "postal_code": "461431049",
            "telephone_number": "317-890-2000",
            "fax_number": "317-859-7220"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "14300 E 138TH ST BLDG A",
            "city": "FISHERS",
            "state": "IN",
            "postal_code": "460370087",
            "telephone_number": "317-813-1660",
            "fax_number": "317-813-1667"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "ROBERT",
        "middle_name": "SIMPSON",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-06-03",
        "last_updated": "2026-08-28",
        "certification_date": "2026-08-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208800000X",
            "taxonomy_group": "",
            "desc": "Urology",
            "state": "IN",
            "license": "01037193A",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100106860A",
            "state": "IN"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Fishers, IN

Sources for this page

Verify at the official NPI Registry.