Ramasubramanian L. Chauhan, M.D.
NPI 1518197144ActiveIndividual· Internal Medicine, Infectious Disease· Aurora, CO
Internal Medicine, Infectious Disease (M.D.) with University Physicians Incorporated and 1 other group, practicing in Aurora, Colorado. Their prescriptions cost Medicare Part D more than their services did: $1,818,866 for 2,100 claims, against $30,291 paid for services in 2024. Gilead Sciences, Inc. reported $28.97 in payments in 2025, mostly food and beverage. Lists Parkview Medical Center, Inc and 1 other hospital as hospital affiliations.
Overview
| NPI | 1518197144 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 16, 2009 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | DR.0051458 | CO |
| Internal Medicine | 207R00000X | 2009006331 | MO |
| Internal Medicine | 207R00000X | 51458 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 104 |
|---|---|
| Services billed | 368 across 22 procedure codes |
| Paid by Medicare | $30,291 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,100 · 2,282 30-day fills |
|---|---|
| Patients | 79 |
| Total drug cost | $1,818,866 |
| Generic share | 65% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University Physicians IncorporatedAurora, CO · 3,215 clinicians
- Vivent Health IncKenosha, WI · 53 clinicians
Hospital affiliations
- Parkview Medical Center, IncPueblo, CO
- University of Colorado Hospital AuthorityAurora, CO
Industry payments (Open Payments)
- 2025$28.97 · 1 payment from 1 company
- 2024$96.29 · 5 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gilead Sciences, Inc. | $28.97 | 1 |
What the 2025 payments were for
- Food and Beverage$28.97 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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