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GREGORY HUGH HESSLER M D
NPI 1326156928
Family Medicine in Mackinac Island, MI

Active since August 25, 2006PECOS Enrolled
7474 MARKET STREET, MACKINAC ISLAND, MI 49757(231) 534-7200(231) 534-7460 Get Directions Write a Review

NPPES record last updated: June 9, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 21, 2022, Jul 25, 2017 (2 updates tracked since 2017).

About Gregory Hugh Hessler M D NPPES

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

GREGORY HUGH HESSLER M D (NPI 1326156928) is an individual family medicine provider in Mackinac Island, Michigan, licensed in Michigan (4301048874) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1326156928
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameGREGORY HUGH HESSLERCredential: M D
Location Address7474 MARKET STREETMackinac Island, MI 49757
Mailing Address1140 N State StSaint Ignace, MI 49781-1013 · (906) 643-0466 · Fax (231) 534-7460
Phone(231) 534-7200
Fax(231) 534-7460
Sole ProprietorNo
Enumeration DateAugust 25, 2006
Last NPPES UpdateJune 9, 20262 updates tracked since enumeration
NPPES CertifiedJune 9, 2026
✔ NPI 1326156928 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in MI · 4301048874
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
7474 MARKET STREET, Mackinac Island, MI 49757
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gregory Hugh Hessler M D 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.

Medicare Billing Reassignment

Medicare enrollment records show Gregory Hessler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mackinac Straits Health System Inc
4.2 mi
Critical Access
1140 N STATE ST
Saint Ignace, MI 49781
  • Reassigned Medicare billing, Michigan enrollment
  • Also billed through NPI 1659536035 (Michigan)
  • 60 clinicians in this Medicare group
NPI 1124283502 (906) 643-8585

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49757 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
$84.74 typical visit price
range $54.34 – $166.68
Typical copayment $21.18 (range $13.58 – $41.67)
Most-billed visit code 99203
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
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.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gregory Hessler's NPI number?

The NPI number for Gregory Hessler is 1326156928. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Where is Gregory Hessler located?

Gregory Hessler practices at 7474 Market Street, Mackinac Island, MI 49757. The listed phone number is (231) 534-7200.

What is Gregory Hessler's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Gregory Hessler enrolled in Medicare?

Yes. Gregory Hessler is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Gregory Hessler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Hessler reassigns Medicare benefits to Mackinac Straits Health System Inc (Saint Ignace, MI). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Hessler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Gregory Hessler accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Gregory Hessler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Gregory Hessler was last updated on June 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.