Tiffany Nicole Tanaka, M.D.
NPI 1407159726ActiveIndividual· Internal Medicine, Hematology & Oncology· San Diego, CA
Internal Medicine, Hematology & Oncology (M.D.) in San Diego, California, trained at University of Hawaii John A. Burns School of Medicine (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $1,772,228 for 604 claims, against $53,593 paid for services in 2024. E.R. Squibb & Sons, L.L.C. was the largest of 3 companies reporting payments in 2025, $14,572 in all, mostly consulting fees.
Overview
| NPI | 1407159726 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 8, 2010 |
| Last updated in NPPES | Jan 24, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A119740 | 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 | 125 |
|---|---|
| Services billed | 589 across 16 procedure codes |
| Paid by Medicare | $53,593 |
Part D prescriptions in 2024
| Prescriptions (claims) | 604 · 858 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $1,772,228 |
| Generic share | 65% of claims |
Education and affiliations
| Medical school | University of Hawaii John A. Burns School of Medicine |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Hematology/Oncology |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of CaliforniaSan Diego, CA · 2,089 clinicians
Hospital affiliation
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Other facilities
- Accentcare Home Health at Uc San Diego LLCHome health agency · San Diego, CA
Industry payments (Open Payments)
- 2025$14,572 · 13 payments from 3 companies
- 2024$6,190 · 4 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| E.R. Squibb & Sons, L.L.C. | $7,163 | 2 |
| Geron Corporation | $5,710 | 10 |
| Cycle Pharmaceuticals Inc | $1,700 | 1 |
What the 2025 payments were for
- Consulting Fee$14,263 · 5 payments
- Food and Beverage$309.62 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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