Tyler Yu-Tai Kang, M.D.
NPI 1164691820ActiveIndividual· Internal Medicine, Hematology & Oncology· Walnut Creek, CA
Internal Medicine, Hematology & Oncology (M.D.) in Walnut Creek, California, trained at University of Southern California Keck School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,681,851 for 599 claims, against $691,958 paid for services in 2024. Merck Sharp & Dohme LLC was the largest of 51 companies reporting payments in 2025, $4,963 in all, mostly food and beverage.
Overview
| NPI | 1164691820 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Feb 27, 2008 |
| Last updated in NPPES | Sep 1, 2026 |
| Certified by provider | Sep 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A81013 | CA |
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 | 505 |
|---|---|
| Services billed | 68,951 across 93 procedure codes |
| Paid by Medicare | $691,958 |
Part D prescriptions in 2024
| Prescriptions (claims) | 599 · 800 30-day fills |
|---|---|
| Patients | 140 |
| Total drug cost | $1,681,851 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | University of Southern California Keck School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical groups
- Northbay Physicians Surgery Center, LLCFairfield, CA · 324 clinicians
- Bass Medical GroupChico, CA · 291 clinicians
- Northbay Health Medical FoundationFairfield, CA · 213 clinicians
- St. Helena HospitalSaint Helena, CA · 84 clinicians
Hospital affiliations
- Adventist Health ClearlakeClearlake, CA
- Adventist Health St HelenaSaint Helena, CA
- Northbay Medical CenterFairfield, CA
- Providence Queen of the Valley Medical CenterNapa, CA
- Sutter Medical Center, SacramentoSacramento, CA
Industry payments (Open Payments)
- 2025$4,963 · 206 payments from 51 companies
- 2024$4,419 · 178 payments from 43 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $380.87 | 15 |
| Novartis Pharmaceuticals Corporation | $298.62 | 13 |
| Celgene Corporation | $256.86 | 11 |
| Takeda Pharmaceuticals U.S.A., Inc. | $253.16 | 14 |
| Janssen Biotech, Inc. | $247.78 | 7 |
What the 2025 payments were for
- Food and Beverage$4,731 · 203 payments
- Education$231.67 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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