Individual provider Active NPI

Olatunji Walter Williams, MD

  • Pediatric Pulmonology Physician
  • Indianapolis, IN
National Provider Identifier
1952474710
Registry record updated Jun 2, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Pulmonology PhysicianTaxonomy code 2080P0214X
License
01069518A Issued in IN
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

Updated by the provider on Jun 2, 2026

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
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, TN3 enrollments
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 3

Enrollment IDStateProvider typePAC IDDetails
I20160209001142 IN Practitioner - Pediatric MedicinePractitioner - Pulmonary Disease 1759484140 Reassigns benefits to 2 organizations
I20231003001399 IL Practitioner - Pediatric MedicinePractitioner - Pulmonary Disease 1759484140 Reassigns benefits to 3 organizations
I20240715000651 TN Practitioner - Pediatric MedicinePractitioner - Pulmonary Disease 1759484140 Reassigns benefits to 1 organization

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036165079ILMDPediatric Pulmonology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
St Vincent Pediatric Subspecialties Pediatrics CurrentSince Jan 5, 2016 Accepting new patients
Board of Trustees of the University of Illinois Pediatrics CurrentSince Aug 7, 2023 Accepting new patients
Ut Lebonheur Pediatric Specialists, Inc. Pediatrics CurrentSince Jul 10, 2024 Accepting new patients
The Board of Trustees of the University of Illinois CurrentSince Aug 7, 2023 Accepting new patients
St Vincent Pediatric Subspecialties Pediatrics CurrentSince Jan 5, 2016 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

  • Direct secure messaging: olatunji.williams.1@7598.direct.athenahealth.com
  • Direct secure messaging: 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.

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

Verify at the official NPI Registry.