Doctor profile · Federal record
Dr. Gregg Schellack, D.O.
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Livingston, MT
- NPI 1205887544
- Accepts Medicare
- 23 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
320 Alpenglow Ln
Livingston, MT 590478506
(406) 222-3541
fax (406) 222-7606 - Additional location
-
600 Mt Highway 91 S
Dillon, MT 597257379
(406) 683-3000
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- August 21, 2024
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State license (1)
- Montana #PHYS-35111
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205887544. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$61
Transactions
2
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Stryker Corporation | 2 | $60.68 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
146
Patients
87
Total drug cost
$1,010
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 42 | 28 | $328 |
| Naproxen | Generic | 41 | 30 | $323 |
| Promethazine Hcl | Generic | 31 | 29 | $99 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 18 | 0 | $128 |
| Acetaminophen-Codeine (Acetaminophen With Codeine) | Brand | 14 | 0 | $132 |
Frequently asked questions
What is Dr. Gregg Schellack's medical specialty?
Dr. Gregg Schellack practices Orthopaedic Surgery Physician in Livingston, MT.
Where does Dr. Gregg Schellack practice?
Dr. Gregg Schellack practices at 320 Alpenglow Ln, Livingston, MT 590478506. Office phone: 4062223541.
What is Dr. Gregg Schellack's NPI?
Dr. Gregg Schellack's National Provider Identifier (NPI) is 1205887544, issued by NPPES.
Does Dr. Gregg Schellack accept Medicare assignment?
Yes. Dr. Gregg Schellack accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.