Thiri Khin, M.D
NPI 1558797977ActiveIndividual· Internal Medicine, Hematology & Oncology· Anaheim, CA
Internal Medicine, Hematology & Oncology (M.D) with Southern California Permanente Medical Group, practicing in Anaheim, California. Their prescriptions cost Medicare Part D more than their services did: $658,266 for 276 claims, against $10,485 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 16 companies reporting payments in 2025, $2,486 in all, mostly food and beverage.
Overview
| NPI | 1558797977 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Sep 17, 2013 |
| Last updated in NPPES | Jan 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A147248 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 41 |
|---|---|
| Services billed | 352 across 13 procedure codes |
| Paid by Medicare | $10,485 |
Part D prescriptions in 2024
| Prescriptions (claims) | 276 · 435 30-day fills |
|---|---|
| Patients | 83 |
| Total drug cost | $658,266 |
| Generic share | 66% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Industry payments (Open Payments)
- 2025$2,486 · 76 payments from 16 companies
- 2024$998.75 · 42 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $1,304 | 17 |
| Celgene Corporation | $347.01 | 21 |
| Pfizer Inc. | $166.74 | 10 |
| Genentech USA, Inc. | $93.43 | 4 |
| Stemline Therapeutics Inc. | $87.54 | 3 |
What the 2025 payments were for
- Food and Beverage$1,286 · 63 payments
- Long term medical supply or device loan$1,180 · 12 payments
- Education$20.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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