Ram K. Chillar, M.D.
NPI 1881702645ActiveIndividual· Internal Medicine, Hematology & Oncology· Phoenix, AZ
Internal Medicine, Hematology & Oncology (M.D.) with The Oncology Institute Ca, A Professional Corporation and 1 other group, practicing in Phoenix, Arizona. Their prescriptions cost Medicare Part D more than their services did: $506,043 for 126 claims, against $6,744 paid for services in 2024. Sobi, Inc was the largest of 8 companies reporting payments in 2025, $293.89 in all, mostly food and beverage. Lists Bay Area Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1881702645 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 29, 2006 |
| Last updated in NPPES | Apr 14, 2026 |
| Certified by provider | Apr 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 80210 | AZ |
| Internal Medicine, Hematology | 207RH0000X | A25342 | CA |
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 - Medical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 43 |
|---|---|
| Services billed | 274 across 13 procedure codes |
| Paid by Medicare | $6,744 |
Part D prescriptions in 2024
| Prescriptions (claims) | 126 · 192 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $506,043 |
| Generic share | 69% of claims |
Education and affiliations
| Graduation year | 1965 |
|---|---|
| Medicare specialty | Medical Oncology |
| Secondary specialties | Hematology, Hematology/Oncology, Internal Medicine |
Medical groups
- The Oncology Institute Ca, A Professional CorporationSan Gabriel, CA · 113 clinicians
- Sutter Coast HospitalCrescent City, CA · 30 clinicians
Hospital affiliations
- Bay Area HospitalCoos Bay, OR
- Curry General HospitalGold Beach, OR
- Mercy Medical CenterMerced, CA
- Sutter Coast HospitalCrescent City, CA
Industry payments (Open Payments)
- 2025$293.89 · 10 payments from 8 companies
- 2024$340.02 · 11 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sobi, Inc | $99.95 | 1 |
| Novartis Pharmaceuticals Corporation | $67.31 | 3 |
| Rigel Pharmaceuticals, Inc. | $25.42 | 1 |
| Astrazeneca Pharmaceuticals LP | $23.78 | 1 |
| Caris Mpi, Inc. | $22.51 | 1 |
What the 2025 payments were for
- Food and Beverage$193.94 · 9 payments
- Education$99.95 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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