NPPES file of Aug 9, 2026

Gregg B. Hanert, D.O.

Family Medicine Physician · Grayling, MI

Gregg B. Hanert, D.O. is a family medicine physician with a practice address in Grayling, Michigan, and NPI 1366439044, issued on Sep 29, 2005. Check the license (Michigan GH010110, 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
1366439044
Name
Gregg B. Hanert
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
GH010110 MI
Self-reported in NPPES; status is on the state search
Practice location
1250 E Michigan Ave, Grayling, MI 49738
Phone
(989) 348-0550
Enumerated
Sep 29, 2005
Record last updated
Dec 18, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
4579374 MI
Medicare enrollment
Enrolled (PECOS I20040330000872); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Osteopathic Medicine, 1986
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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8 nearest family medicine physician records → All 6,013 in Michigan → Look up another NPI →

Also registered at 1250 E Michigan Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jason Bennett, DOOrthopaedic Surgery Physician1699921106
  2. Nicole Cameron, NPNurse Practitioner1710466024
  3. Sarah ColemanPhysical Therapist1881161594
  4. Rachel DawsonOccupational Therapist1427526003
  5. Brittany Duell, FNPPrimary Care Nurse Practitioner1386317857
  6. Angela Erber, MSN, CNMMidwife1992662779

Verify Gregg B. Hanert 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 GH010110    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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3.7 times the Medicare Part D claims of the average family medicine physician in 2024

13,220 Medicare Part D claims for 921 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 551 claims were for opioids.

  1. Gregg Hanert13,220
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium652 claims
  2. Amlodipine Besylate537 claims
  3. Rosuvastatin Calcium469 claims
  4. Lisinopril425 claims
  5. Omeprazole404 claims
  6. Metoprolol Succinate368 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.

Industry payments in 2024: $222.00

13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Gregg Hanert$222.00
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospitals and group practices

  1. Munson Healthcare Otsego Memorial HospitalGaylord, MI · Acute Care Hospitals4 of 5 stars
  2. Munson Healthcare GraylingGrayling, MI

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Gregg B. Hanert among 6,013 family medicine physician records in Michigan

Gregg B. Hanert, D.O. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1986 · median 2008 among the 3,493 with a school on file
  • Record last updated2020 · 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).

5 family medicine physician records list a practice address in Grayling

They are 5 of the 233 NPPES records with a practice address in Grayling, and 6,013 family medicine physician records in Michigan.

All 6,013 in Michigan → Every provider in Grayling → Family Medicine Physician nationwide →

The 8 family medicine physician records with the nearest ZIP codes

  1. Nestor Guno, MDGrayling, MI 497381659431658
  2. Thad Jackson, D.O.Grayling, MI 497381891782421
  3. William McNamara, M.D.Grayling, MI 497381952398638
  4. Joanna Nigrelli, D.O.Grayling, MI 497381609028992
  5. Michelle Chartier, D.O.Harbor Springs, MI 497401104897107
  6. Thomas Loomis, MDHarbor Springs, MI 497401376501163
  7. Eliza Newbury-Palma, DOHarbor Springs, MI 497401336590728
  8. Gregory Putalik, M.D.Harbor Springs, MI 497401679782841

Common questions

What is Gregg B. Hanert, D.O.'s NPI number?

Gregg B. Hanert, D.O.'s National Provider Identifier (NPI) is 1366439044, issued on Sep 29, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Gregg B. Hanert, D.O. located?

The NPPES record lists a practice address at 1250 E Michigan Ave, Grayling, MI, 49738. Phone: (989) 348-0550. Providers update this record themselves, so call before visiting.

How can I verify Gregg B. Hanert, D.O.'s license?

NPPES lists Michigan license number GH010110, 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 Gregg B. Hanert, D.O. prescribe under Medicare Part D?

In 2024, Gregg B. Hanert, D.O. had 13,220 Medicare Part D claims for 921 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.