Doctor profile · Federal record

Dr. Gregg Hanert, D.O.

Family Medicine Physician (CMS: Family Practice) · Grayling, MI

  • NPI 1366439044
  • Accepts Medicare
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 6 locations .

NPPES Updated May 11, 2026
Primary practice
1250 E Michigan Ave
Grayling, MI 49738
(989) 348-0550
Additional location
1010 W North Down River RD
Grayling, MI 497382060
(989) 348-7671
fax (989) 348-8414
Additional location
1200 W North Down River RD Ste C
Grayling, MI 497388024
(989) 344-5910
Show 3 more locations
Additional location
1321 S Mount Tom RD
Mio, MI 486479518
(989) 275-1200
Additional location
234 Lake St
Roscommon, MI 486539203
(989) 275-1200
Additional location
2585 W Houghton Lake Dr
Prudenville, MI 486519624
(989) 366-2900

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
December 18, 2020
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
207Q00000X — NUCC code
State license (1)
Michigan #GH010110
Medicaid
MI #4579374

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366439044. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$222
Transactions
13
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Abbvie INC. 3 $53.12
Amgen INC. 3 $47.77
Axsome Therapeutics, INC. 2 $38.29
AstraZeneca Pharmaceuticals Lp 2 $32.56
Novo Nordisk INC 2 $28.31
Ironshore Pharmaceuticals INC. 1 $21.95

By nature of payment

Food and Beverage
$222

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
4,725
Patients
1,455
Total drug cost
$89,126
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 593 179 $11,379
Amlodipine Besylate Generic 474 144 $5,329
Rosuvastatin Calcium Generic 413 136 $10,465
Lisinopril Generic 395 121 $4,282
Omeprazole Generic 393 119 $8,035
Levothyroxine Sodium Generic 343 100 $6,715
Metoprolol Succinate Generic 336 105 $8,760
Metformin Hcl Generic 333 106 $4,394
Losartan Potassium Generic 243 89 $5,479
Tamsulosin Hcl Generic 238 70 $6,538

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregg Hanert's medical specialty?
Dr. Gregg Hanert practices Family Medicine Physician in Grayling, MI.
Where does Dr. Gregg Hanert practice?
Dr. Gregg Hanert practices at 1250 E Michigan Ave, Grayling, MI 49738. Office phone: 9893480550.
What is Dr. Gregg Hanert's NPI?
Dr. Gregg Hanert's National Provider Identifier (NPI) is 1366439044, issued by NPPES.
Does Dr. Gregg Hanert accept Medicare assignment?
Yes. Dr. Gregg Hanert accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.