Individual provider Active NPI

Thomas W Larrew, MD

  • Neurological Surgery Physician
  • Indianapolis, IN
National Provider Identifier
1427408632
Registry record updated Jul 29, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Neurological Surgery PhysicianTaxonomy code 207T00000X
License
01093848A Issued in IN
Practice address
705 Riley Hospital Dr
Indianapolis, IN 46202-5109
Phone
(317) 944-6201
Fax
(317) 948-1482
NPI assigned
Jun 18, 2016
Last updated
Jul 29, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 29, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Neurological Surgery Physician 207T00000X 01093848A IN Primary
Neurological Surgery Physician 207T00000X 35.147658 OH

Addresses

Primary practice location

705 Riley Hospital Dr
Indianapolis, IN 46202-5109

Mailing address

705 Riley Hospital Dr Ste 1601
Indianapolis, IN 46202-5109
Phone (317) 948-0227

Electronic endpoints 1

TypeEndpointUseAffiliation
Direct Messaging Address tlarrew@direct.iuhealth.org Direct

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
I20240621003158 IN Practitioner - Neurosurgery 4587944905 Reassigns benefits to 3 organizations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
University Family Physicians, Inc. CurrentSince Aug 1, 2024 Accepting new patients
Iu Health Medical Group, LLC CurrentSince Jul 1, 2025 Accepting new patients
University Family Physicians, Inc. CurrentSince Aug 1, 2024 Accepting new patients
Iu Health Medical Group Riley Specialists, LLC CurrentSince Jan 1, 2026 Accepting new patients

Locations

7216 Solutions Ctr
Chicago, IL 60677

1520 N Senate Ave
Indianapolis, IN 46202
Phone (317) 962-0857

1701 Senate Blvd
Indianapolis, IN 46202
Phone (317) 612-2754

250 N Shadeland Ave
Indianapolis, IN 46219
Phone (317) 948-9174

705 Riley Hospital Dr
Indianapolis, IN 46202
Phone (317) 274-4779

705 Riley Hospital Dr
Ste 1601
Indianapolis, IN 46202
Phone (317) 944-6270

Organizations & group practices 4

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

NPI Registry JSON

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

{
    "created_epoch": "1466208000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1427408632",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "705 RILEY HOSPITAL DR STE 1601",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462025109",
            "telephone_number": "317-948-0227"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "705 RILEY HOSPITAL DR",
            "city": "INDIANAPOLIS",
            "state": "IN",
            "postal_code": "462025109",
            "telephone_number": "317-944-6201",
            "fax_number": "317-948-1482"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARREW",
        "first_name": "THOMAS",
        "middle_name": "W",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-06-18",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "IN",
            "license": "01093848A",
            "primary": true
        },
        {
            "code": "207T00000X",
            "taxonomy_group": "",
            "desc": "Neurological Surgery",
            "state": "OH",
            "license": "35.147658",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "tlarrew@direct.iuhealth.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "705 Riley Hospital Dr",
            "city": "Indianapolis",
            "state": "IN",
            "country_code": "US",
            "postal_code": "462025109",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Indianapolis, IN

Sources for this page

Verify at the official NPI Registry.