Active NPI
Olatunji Walter Williams, MD
- Pediatric Pulmonology Physician
- Indianapolis, IN
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatric Pulmonology Physician
- License
- 01069518A
- Practice address
- 8402 Harcourt Rd Ste 300
Indianapolis, IN 46260-2052 - Phone
- (317) 338-5288
- NPI assigned
- Nov 17, 2006
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 4
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Pediatrics Physician | 208000000X | 01069518A | IN | |
| Pediatric Pulmonology Physician | 2080P0214X | M4984 | TX | |
| Pediatric Pulmonology Physician | 2080P0214X | 036165079 | IL | |
| Pediatric Pulmonology Physician | 2080P0214X | 01069518A | IN | Primary |
Addresses
Primary practice location
8402 Harcourt Rd Ste 300
Indianapolis, IN 46260-2052
Mailing address
8402 Harcourt Rd Ste 300
Indianapolis, IN 46260-2052
Other practice location 1
10855 Virginia St
Crown Point, IN 46307-0210
Phone (888) 824-0200
Other practice location 2
5841 S Maryland Ave
Chicago, IL 60637-1443
Phone (888) 824-0200
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in IN, IL, TN
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 3
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 036165079 | IL | MD | Pediatric Pulmonology Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| St Vincent Pediatric Subspecialties | Pediatrics | Current | Accepting new patients |
| Board of Trustees of the University of Illinois | Pediatrics | Current | Accepting new patients |
| Ut Lebonheur Pediatric Specialists, Inc. | Pediatrics | Current | Accepting new patients |
| The Board of Trustees of the University of Illinois | Current | Accepting new patients | |
| St Vincent Pediatric Subspecialties | Pediatrics | Current | Accepting new patients |
| The Board of Trustees of the University of Illinois | Current | Accepting new patients | |
| Major Hospital | Past | Accepting new patients |
Locations
7694 Solutions Ctr
Chicago, IL 60677
1 Illini Dr
Peoria, IL 61605
Phone (309) 671-3000
8402 Harcourt Rd
Ste 732
Indianapolis, IN 46260
Phone (317) 338-6815
2001 W 86th St
Indianapolis, IN 46260
Phone (317) 338-3617
8402 Harcourt Rd
Ste 731
Indianapolis, IN 46260
Phone (317) 338-2825
8402 Harcourt Rd
Ste 300
Indianapolis, IN 46260
Phone (317) 338-3100
8402 Harcourt Rd
Indianapolis, IN 46260
Phone (317) 338-6815
8402 Harcourt Rd
Ste 100
Indianapolis, IN 46260
Phone (317) 338-7373
848 Adams Ave
Memphis, TN 38103
Phone (901) 287-5437
51 N Dunlap St
Ste 100
Memphis, TN 38105
Phone (323) 783-1737
100 N Humphreys Blvd
Memphis, TN 38120
Phone (901) 747-1800
Interoperability endpoints
- olatunji.williams.1@7598.direct.athenahealth.com
- owilliams67894@mlh.direct-ci.com
Organizations & group practices 9
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.
-
- Pediatrics Physician
- Indianapolis, IN
- NPI 1013967736
-
- Anatomic Pathology Physician
- Chicago, IL
- NPI 1386863819
-
- Pediatrics Physician
- Memphis, TN
- NPI 1093024101
-
- General Acute Care Hospital
- Chicago, IL
- NPI 1033218128
-
- Pediatric Critical Care Medicine Physician
- Evansville, IN
- NPI 1851950224
Pediatrics
-
- Pediatrics Physician
- Peoria, IL
- NPI 1467425322
-
- Occupational Medicine Physician
- Chicago, IL
- NPI 1043727571
-
- General Acute Care Hospital
- Shelbyville, IN
- NPI 1174555692
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1163721600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780358400000",
"number": "1952474710",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "8402 HARCOURT RD STE 300",
"city": "INDIANAPOLIS",
"state": "IN",
"postal_code": "462602052"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8402 HARCOURT RD STE 300",
"city": "INDIANAPOLIS",
"state": "IN",
"postal_code": "462602052",
"telephone_number": "317-338-5288"
}
],
"practiceLocations": [
{
"address_1": "10855 Virginia St",
"address_purpose": "LOCATION",
"city": "Crown Point",
"state": "IN",
"postal_code": "463070210",
"country_code": "US",
"telephone_number": "888-824-0200",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "5841 S Maryland Ave",
"address_purpose": "LOCATION",
"city": "Chicago",
"state": "IL",
"postal_code": "606371443",
"country_code": "US",
"telephone_number": "888-824-0200",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WILLIAMS",
"first_name": "OLATUNJI",
"middle_name": "WALTER",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-11-17",
"last_updated": "2026-06-02",
"certification_date": "2026-06-02",
"status": "A"
},
"taxonomies": [
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "IN",
"license": "01069518A",
"primary": false
},
{
"code": "2080P0214X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Pulmonology",
"state": "TX",
"license": "M4984",
"primary": false
},
{
"code": "2080P0214X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Pulmonology",
"state": "IL",
"license": "036165079",
"primary": false
},
{
"code": "2080P0214X",
"taxonomy_group": "",
"desc": "Pediatrics, Pediatric Pulmonology",
"state": "IN",
"license": "01069518A",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Indianapolis, IN
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 2, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.