Colin Robert Anderson, MD
NPI 1023571122ActiveIndividual· Internal Medicine· Ch, SC
Internal Medicine (MD) with Oak Mountain Group Services, LLC, practicing in Ch, South Carolina. 213 Medicare patients in 2024, $52,018 paid; nearly all of their 334 Part D prescriptions were generic (90%). Pfizer Inc. was the largest of 5 companies reporting payments in 2025, $359.94 in all, mostly food and beverage. Lists Grandview Medical Center as a hospital affiliation.
Overview
| NPI | 1023571122 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 8, 2019 |
| Last updated in NPPES | Jun 25, 2023 |
| Certified by provider | Jun 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 89576 | SC |
| Internal Medicine | 207R00000X | 66092 | AZ |
| Internal Medicine | 207R00000X | R77234 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (AL); Practitioner - Hospitalist (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 213 |
|---|---|
| Services billed | 640 across 9 procedure codes |
| Paid by Medicare | $52,018 |
Part D prescriptions in 2024
| Prescriptions (claims) | 334 · 421 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $18,645 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 2019 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical group
- Oak Mountain Group Services, LLCBirmingham, AL · 61 clinicians
Hospital affiliation
- Grandview Medical CenterBirmingham, AL
Industry payments (Open Payments)
- 2025$359.94 · 19 payments from 5 companies
- 2024$214.54 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $155.54 | 9 |
| Gilead Sciences, Inc. | $75.27 | 4 |
| Abbvie Inc. | $62.70 | 3 |
| Melinta Therapeutics, LLC | $44.14 | 2 |
| Bayer Healthcare Pharmaceuticals Inc. | $22.29 | 1 |
What the 2025 payments were for
- Food and Beverage$359.94 · 19 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records