Brian Ahn
NPI 1144682253ActiveIndividual· Internal Medicine, Critical Care Medicine· Aurora, CO
Internal Medicine, Critical Care Medicine in Aurora, Colorado, trained at University of Pittsburgh School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $244,164 for 571 claims, against $62,506 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 3 companies reporting payments in 2025, $60.30 in all, mostly food and beverage.
Overview
| NPI | 1144682253 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 28, 2016 |
| Last updated in NPPES | Mar 24, 2022 |
| Certified by provider | Mar 24, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | DR.0062593 | CO |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 292 |
|---|---|
| Services billed | 678 across 41 procedure codes |
| Paid by Medicare | $62,506 |
Part D prescriptions in 2024
| Prescriptions (claims) | 571 · 762 30-day fills |
|---|---|
| Patients | 124 |
| Total drug cost | $244,164 |
| Generic share | 34% of claims |
Education and affiliations
| Medical school | University of Pittsburgh School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Critical Care Pulmonary and Sleep Associates Professional LLPLakewood, CO · 63 clinicians
Hospital affiliations
- Adventhealth AvistaLouisville, CO
- Adventhealth PorterDenver, CO
- Centura Health-St Anthony HospitalLakewood, CO
- Centura Health-St Anthony North Health CampusWestminster, CO
- St Anthony Summit Medical CenterFrisco, CO
Industry payments (Open Payments)
- 2025$60.30 · 3 payments from 3 companies
- 2024$42.36 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $21.87 | 1 |
| Glaxosmithkline, LLC. | $21.15 | 1 |
| Astrazeneca Pharmaceuticals LP | $17.28 | 1 |
What the 2025 payments were for
- Food and Beverage$60.30 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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