Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GILLIAN S TYNER DO
NPI 1427797976
Internal Medicine - Gastroenterology in Farmington Hills, MI

Q: What is Gillian Tyner's NPI number?

The NPI number for Gillian Tyner is 1427797976. It was assigned to this individual provider in the NPPES registry on June 2, 2022.

Q: What is Gillian Tyner's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Gillian Tyner was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since June 02, 2022PECOS Enrolled

28050 GRAND RIVER AVE, FARMINGTON HILLS, MI 48336(248) 471-8000 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Gillian S Tyner Do NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GILLIAN S TYNER DO (NPI 1427797976) is an individual gastroenterology provider in Farmington Hills, Michigan, licensed in Michigan (1427797976) and active in the NPI registry since June 2022. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1427797976

Entity TypeIndividualFemale

Primary Taxonomy207RG0100X

Provider Legal NameGILLIAN S TYNERCredential: DO

Location Address28050 GRAND RIVER AVEFarmington Hills, MI 48336-5919

Mailing Address4588 Fairway RdgWest Bloomfield, MI 48323-3309 · (248) 918-8557

Phone(248) 471-8000

Sole ProprietorYes

Enumeration DateJune 2, 2022

Last NPPES UpdateJune 29, 2026

NPPES CertifiedJune 29, 2026

✔ NPI 1427797976 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MI · 1427797976

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

28050 GRAND RIVER AVE, Farmington Hills, MI 48336

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gillian S Tyner Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 48336 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$134.28 typical visit price

range $58.04 – $177.36

Typical copayment $33.57 (range $14.51 – $44.34)

Most-billed visit code 99204

Established Patient

$102.35 typical visit price

range $18.32 – $143.49

Typical copayment $25.58 (range $4.58 – $35.87)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PHYLLIS A SURMA RN

Registered Nurse (Diabetes Educator)

28050 GRAND RIVER AVE, TRACC
FARMINGTON HILLS, MI 48336

Oakland County (248) 471-8000

KAREN WATSON OTR/L

Occupational Therapist