Belton Douglas Hallmark, M.D.
NPI 1225018633ActiveIndividual· Family Medicine· Castle Rock, CO
Family Medicine (M.D.) in Castle Rock, Colorado, trained at University of Texas Medical Branch at Galveston (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $641,446 for 4,780 claims, against $122,958 paid for services in 2024. Abbvie Inc. was the largest of 23 companies reporting payments in 2025, $1,552 in all, mostly food and beverage.
Overview
| NPI | 1225018633 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 20, 2006 |
| Last updated in NPPES | Jul 11, 2023 |
| Certified by provider | Nov 2, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 23157 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 251 |
|---|---|
| Services billed | 7,810 across 89 procedure codes |
| Paid by Medicare | $122,958 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,780 · 10,342 30-day fills |
|---|---|
| Patients | 270 |
| Total drug cost | $641,446 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Texas Medical Branch at Galveston |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Hospital affiliations
- Adventhealth Castle RockCastle Rock, CO
- Adventhealth ParkerParker, CO
- Keefe Memorial HospitalCheyenne Wells, CO
- Sky Ridge Medical CenterLone Tree, CO
Other facilities
- Lifespring Home CareHome health agency · Castle Rock, CO
Industry payments (Open Payments)
- 2025$1,552 · 69 payments from 23 companies
- 2024$2,712 · 100 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $386.29 | 26 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $175.56 | 4 |
| Merck Sharp & Dohme LLC | $137.62 | 3 |
| Alkermes, Inc. | $106.90 | 1 |
| Edwards Lifesciences Corporation | $84.23 | 2 |
What the 2025 payments were for
- Food and Beverage$1,552 · 69 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 68 family medicine physicians in Castle Rock · All family medicine physicians in Colorado