Ajai Chari, M.D.
NPI 1376560136ActiveIndividual· Internal Medicine, Hematology & Oncology· New York, NY
Internal Medicine, Hematology & Oncology (M.D.) in New York, New York, trained at University of California, Geffen School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $2,105,534 for 236 claims, against $140,537 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 14 companies reporting payments in 2025, $88,908 in all, mostly consulting fees.
Overview
| NPI | 1376560136 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 17, 2006 |
| Last updated in NPPES | Jan 21, 2024 |
| Certified by provider | Jan 21, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 219311 | NY |
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 - Hematology/Oncology (CA); Practitioner - Hematology/Oncology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 138 |
|---|---|
| Services billed | 2,773 across 28 procedure codes |
| Paid by Medicare | $140,537 |
Part D prescriptions in 2024
| Prescriptions (claims) | 236 · 301 30-day fills |
|---|---|
| Patients | 56 |
| Total drug cost | $2,105,534 |
| Generic share | 57% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliations
- Mount Sinai HospitalNew York, NY
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$88,908 · 75 payments from 14 companies
- 2024$96,599 · 94 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $22,079 | 4 |
| Janssen Global Services, LLC | $15,854 | 24 |
| Astrazeneca Pharmaceuticals LP | $9,208 | 5 |
| Grifols Shared Services North America, Inc. | $8,250 | 1 |
| Glaxosmithkline, LLC. | $8,093 | 5 |
What the 2025 payments were for
- Consulting Fee$64,959 · 29 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$11,600 · 1 payment
- Travel and Lodging$11,223 · 11 payments
- Food and Beverage$827.20 · 19 payments
- Gift$300.00 · 15 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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