NPPES file of Aug 9, 2026

Gregory Hugh Hessler, M D

Family Medicine Physician · Mackinac Island, MI

Gregory Hugh Hessler, M D is a family medicine physician with a practice address in Mackinac Island, Michigan, and NPI 1326156928, issued on Aug 25, 2006. Check the license (Michigan 4301048874, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1326156928
Name
Gregory Hugh Hessler
Credential
M D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
4301048874 MI
Self-reported in NPPES; status is on the state search
Practice location
7474 Market Street, Mackinac Island, MI 49757
Phone
(231) 534-7200
Enumerated
Aug 25, 2006
Record last updated
Jun 9, 2026
Fax
(231) 534-7460
Medicare enrollment
Enrolled (PECOS I20090611000534); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1984
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Gregory Hugh Hessler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
    Search for license 4301048874
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Michigan license search

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76% fewer Medicare Part D claims than the average family medicine physician in 2024

852 Medicare Part D claims for 103 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 21 claims were for opioids.

  1. Gregory Hessler852
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate35 claims
  2. Atorvastatin Calcium28 claims
  3. Lisinopril28 claims
  4. Metformin Hcl27 claims
  5. Progesterone25 claims
  6. Albuterol Sulfate Hfa21 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Mackinac Straits Health System IncSaint Ignace, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gregory Hugh Hessler among 6,013 family medicine physician records in Michigan

Gregory Hugh Hessler, M D is one of 6,013 family medicine physician records with a practice address in Michigan. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 56% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1984 · median 2008 among the 3,493 with a school on file
  • Record last updated2026 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Family Medicine Physician providers in Michigan

There are 6,013 family medicine physician records in Michigan.

The 8 family medicine physician records with the nearest ZIP codes

  1. Jessica NeurothLewiston, MI 497561487036513
  2. Stephanie Rutterbush, MDLewiston, MI 497561649652298
  3. Robert Cyman, D.O.Onaway, MI 497651538258025
  4. John Everett, D.O.Indian River, MI 497491881628253
  5. Michael Florek, D.O.Indian River, MI 497491750307443
  6. Douglas Furman, MDIndian River, MI 497491952321390
  7. David Kazanowski, MDOnaway, MI 497651760042873
  8. Theodore Reahm, D.O.Onaway, MI 497651891740379

Common questions

What is Gregory Hugh Hessler, M D's NPI number?

Gregory Hugh Hessler, M D's National Provider Identifier (NPI) is 1326156928, issued on Aug 25, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory Hugh Hessler, M D located?

The NPPES record lists a practice address at 7474 Market Street, Mackinac Island, MI, 49757. Phone: (231) 534-7200. Providers update this record themselves, so call before visiting.

How can I verify Gregory Hugh Hessler, M D's license?

NPPES lists Michigan license number 4301048874, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Gregory Hugh Hessler, M D prescribe under Medicare Part D?

In 2024, Gregory Hugh Hessler, M D had 852 Medicare Part D claims for 103 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.