Robert Melvin Rifkin, MD
NPI 1134103476ActiveIndividual· Internal Medicine, Hematology & Oncology· Denver, CO
Internal Medicine, Hematology & Oncology (MD) in Denver, Colorado, trained at University of Colorado School of Medicine, Denver (class of 1982). In 2024 Medicare paid $3,399,746 for 808 patients, and Part D covered 999 of their prescriptions, 75% of them generic. Regeneron Healthcare Solutions, Inc. was the largest of 5 companies reporting payments in 2025, $6,586 in all, mostly consulting fees.
Overview
| NPI | 1134103476 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 30, 2005 |
| Last updated in NPPES | Feb 4, 2025 |
| Certified by provider | Feb 4, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 26187 | 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 | 808 |
|---|---|
| Services billed | 115,315 across 176 procedure codes |
| Paid by Medicare | $3,399,746 |
Part D prescriptions in 2024
| Prescriptions (claims) | 999 · 1,627 30-day fills |
|---|---|
| Patients | 184 |
| Total drug cost | $3,009,018 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 1982 |
| Medicare specialty | Hematology/Oncology |
Medical group
- Yampa Valley Medical CenterSteamboat Spr, CO · 131 clinicians
Hospital affiliations
- Uchealth Broomfield HospitalBroomfield, CO
- Uchealth Yampa Valley Medical CenterSteamboat Springs, CO
Industry payments (Open Payments)
- 2025$6,586 · 15 payments from 5 companies
- 2024$35,331 · 25 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $2,493 | 1 |
| Adaptive Biotechnologies Corporation | $2,279 | 11 |
| E.R. Squibb & Sons, L.L.C. | $1,775 | 1 |
| Myriad Genetic Laboratories, Inc. | $22.24 | 1 |
| Abbvie Inc. | $16.08 | 1 |
What the 2025 payments were for
- Consulting Fee$4,268 · 2 payments
- Travel and Lodging$1,752 · 3 payments
- Food and Beverage$565.23 · 10 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