Riannon Christa Atwater, MD
NPI 1952043374ActiveIndividual· Hospitalist· Denver, CO
Hospitalist (MD) in Denver, Colorado, trained at University of Colorado School of Medicine, Aurora (class of 2022). Part D covered 541 prescriptions written in 2024, 85% of them generic.
Overview
| NPI | 1952043374 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 7, 2022 |
| Last updated in NPPES | May 27, 2026 |
| Certified by provider | May 27, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | DR.0077832 | CO |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Hospitalist (CO) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 541 · 1,187 30-day fills |
|---|---|
| Patients | 88 |
| Total drug cost | $45,002 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Colorado School of Medicine, Aurora |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Denver Health and Hospital AuthorityDenver, CO · 849 clinicians
Hospital affiliation
- Denver Health & Hospital AuthorityDenver, CO
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 183 hospitalists in Denver · All hospitalists in Colorado