Active NPI
Gillian S Tyner, DO
- Gastroenterology Physician
- Farmington Hills, MI
National Provider Identifier
1427797976
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gastroenterology Physician
- License
- 1427797976
- Practice address
- 28050 Grand River Ave
Farmington Hills, MI 48336-5919 - Phone
- (248) 471-8000
- NPI assigned
- Jun 2, 2022
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gastroenterology Physician | 207RG0100X | 1427797976 | MI | Primary |
Addresses
Primary practice location
28050 Grand River Ave
Farmington Hills, MI 48336-5919
Mailing address
4588 Fairway RDG
West Bloomfield, MI 48323-3309
Phone (248) 918-8557
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MI
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20221209001570 | MI | Order and Referring Only - Internal Medicine | 1355710534 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1654128000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782691200000",
"number": "1427797976",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4588 FAIRWAY RDG",
"city": "WEST BLOOMFIELD",
"state": "MI",
"postal_code": "483233309",
"telephone_number": "248-918-8557"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "28050 GRAND RIVER AVE",
"city": "FARMINGTON HILLS",
"state": "MI",
"postal_code": "483365919",
"telephone_number": "248-471-8000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TYNER",
"first_name": "GILLIAN",
"middle_name": "S",
"credential": "DO",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2022-06-02",
"last_updated": "2026-06-29",
"certification_date": "2026-06-29",
"status": "A"
},
"taxonomies": [
{
"code": "207RG0100X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Gastroenterology",
"state": "MI",
"license": "1427797976",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Farmington Hills, MI
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 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.