Allen L. Cohn, MD
NPI 1316921976ActiveIndividual· Internal Medicine, Hematology & Oncology· Denver, CO
Internal Medicine, Hematology & Oncology (MD) in Denver, Colorado, trained at University of Maryland School of Medicine (class of 1985). In 2024 Medicare paid $1,611,293 for 536 patients, and Part D covered 758 of their prescriptions, 77% of them generic. Pfizer Inc. was the largest of 6 companies reporting payments in 2025, $268.76 in all, mostly food and beverage.
Overview
| NPI | 1316921976 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Dec 6, 2005 |
| Last updated in NPPES | Feb 17, 2025 |
| Certified by provider | Feb 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | DR.0027525 | 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 - Hematology/Oncology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 536 |
|---|---|
| Services billed | 63,458 across 154 procedure codes |
| Paid by Medicare | $1,611,293 |
Part D prescriptions in 2024
| Prescriptions (claims) | 758 · 1,027 30-day fills |
|---|---|
| Patients | 132 |
| Total drug cost | $1,140,557 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Hematology/Oncology |
Medical groups
- Rocky Mountain Cancer Centers LLPDenver, CO · 132 clinicians
- Yampa Valley Medical CenterSteamboat Spr, CO · 131 clinicians
Hospital affiliations
- HCA Healthone RoseDenver, CO
- HCA Healthone Presbyterian St. LukesDenver, CO
- Memorial Hospital, theCraig, CO
- Sky Ridge Medical CenterLone Tree, CO
- Uchealth Yampa Valley Medical CenterSteamboat Springs, CO
Industry payments (Open Payments)
- 2025$268.76 · 6 payments from 6 companies
- 2024$264.48 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $130.43 | 1 |
| Janssen Research & Development, LLC | $37.53 | 1 |
| Histosonics, Inc. | $36.67 | 1 |
| Pharmaand Gmbh | $22.32 | 1 |
| Tolmar, Inc. | $22.32 | 1 |
What the 2025 payments were for
- Food and Beverage$268.76 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 71 hematologist-oncologists in Denver · All hematologist-oncologists in Colorado