Aaron Robert Block, M.D., M.P.H.
NPI 1437578762ActiveIndividual· Family Medicine· Castle Rock, CO
Family Medicine (M.D., M.P.H.) in Castle Rock, Colorado, trained at University of South Florida College of Medicine (class of 2014). 176 Medicare patients in 2024, $17,509 paid; nearly all of their 356 Part D prescriptions were generic (91%). Astrazeneca Pharmaceuticals LP was the largest of 14 companies reporting payments in 2025, $2,287 in all, mostly food and beverage.
Overview
| NPI | 1437578762 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., M.P.H. |
| Sole proprietor | Yes |
| NPI issued | Apr 15, 2014 |
| Last updated in NPPES | Aug 6, 2024 |
| Certified by provider | Aug 6, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | DR.0067691 | CO |
| Family Medicine | 207Q00000X | 35.128986 | OH |
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); Practitioner - Family Practice (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 176 |
|---|---|
| Services billed | 403 across 52 procedure codes |
| Paid by Medicare | $17,509 |
Part D prescriptions in 2024
| Prescriptions (claims) | 356 · 367 30-day fills |
|---|---|
| Patients | 232 |
| Total drug cost | $5,643 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | University of South Florida College of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Family Practice |
Hospital affiliation
- Adventhealth Castle RockCastle Rock, CO
Industry payments (Open Payments)
- 2025$2,287 · 55 payments from 14 companies
- 2024$878.31 · 18 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $379.99 | 11 |
| Amgen Inc. | $354.66 | 11 |
| Viiv Healthcare Company | $349.39 | 10 |
| Gilead Sciences, Inc. | $261.46 | 6 |
| Lilly USA, LLC | $168.46 | 4 |
What the 2025 payments were for
- Food and Beverage$2,287 · 55 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other family medicine physicians in Castle Rock
- 1053373415
- 1225018633
- 1508846023
- 1538245816
- 1548836463
- 1619074382
- 1669634739
- 1821408972
- 1861474751
- 1861757890
- 1972245017
- 1972253169
All 68 family medicine physicians in Castle Rock · All family medicine physicians in Colorado