John R. Gregory, MD
NPI 1861504847ActiveIndividual· Surgery· Billings, MT
Surgery (MD) in Billings, Montana, trained at University of Colorado School of Medicine, Denver (class of 1975). Medicare paid $63,044 for services to 115 patients in 2024. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2024, $147.62 in all, mostly food and beverage.
Overview
| NPI | 1861504847 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 31, 2006 |
| Last updated in NPPES | Feb 10, 2022 |
| Certified by provider | Feb 10, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | 4284 | MT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - General Surgery (MT); Practitioner - General Surgery (WY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 115 |
|---|---|
| Services billed | 222 across 68 procedure codes |
| Paid by Medicare | $63,044 |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 1975 |
| Medicare specialty | General Surgery |
Medical group
- Billings Clinic Specialty Supplies and Services, LLCBillings, MT · 824 clinicians
Hospital affiliation
- Billings Clinic HospitalBillings, MT
Industry payments (Open Payments)
- 2024$147.62 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $99.92 | 1 |
| Lemaitre Vascular, Inc. | $47.70 | 1 |
What the 2024 payments were for
- Food and Beverage$147.62 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Surgery providers in Billings
- 1225138845
- 1689699621
- 1457810350
- 1598110561
- 1962440800
- 1245262583
- 1174634919
- 1932355054
- 1831241785
- 1275558215
- 1962636167
- 1790705234