Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Gregg B Hanert, DO

Individual provider Family Medicine Physician · NPI 1366439044

Dr. Gregg B Hanert, DO is a Family Practice in Grayling, Michigan. Graduated from Michigan State University College of Osteopathic Medicine in 1986, 40 years ago. Practices with Munson Healthcare Grayling, a 64-clinician group, works from 6 locations and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
40
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
MI
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

1250 E Michigan Ave
Grayling, MI 49738
Phone: (989) 348-0550
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (5)

  • 1010 W North Down River Rd, Grayling, MI 49738-2060 — (989) 348-7671
  • 1200 W North Down River Rd Ste C, Grayling, MI 49738-8024 — (989) 344-5910
  • 1321 S Mount Tom Rd, Mio, MI 48647-9518 — (989) 275-1200
  • 2585 W Houghton Lake Dr, Prudenville, MI 48651-9624 — (989) 366-2900
  • 234 Lake St, Roscommon, MI 48653-9203 — (989) 275-1200

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence GH010110 (MI)

Record details

NPI number1366439044
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedSeptember 29, 2005
Last updated in NPPESDecember 18, 2020
Certification dateDecember 18, 2020
Mailing address1250 E Michigan Ave, Grayling, MI 49738-7074

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 1986 (40 years in practice)
Group practice Munson Healthcare Grayling — 64 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Grayling