Katherine Mariko Tanaka, M.D.
NPI 1336344878ActiveIndividual· Ophthalmology· Long Beach, CA
Ophthalmology (M.D.) in Long Beach, California, trained at University of California, Irvine, California College of Medicine (class of 1986). In 2024 Medicare paid $53,145 for 140 patients, and Part D covered 160 of their prescriptions, 29% of them generic. Abbvie Inc. reported $17.94 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1336344878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 15, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | G58916 | 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 - Ophthalmology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 140 |
|---|---|
| Services billed | 976 across 17 procedure codes |
| Paid by Medicare | $53,145 |
Part D prescriptions in 2024
| Prescriptions (claims) | 160 · 315 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $76,536 |
| Generic share | 29% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Ophthalmology |
Medical group
- Katherine M Tanaka MD IncLong Beach, CA · 2 clinicians
Industry payments (Open Payments)
- 2025$17.94 · 1 payment from 1 company
- 2024$18.88 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $17.94 | 1 |
What the 2025 payments were for
- Food and Beverage$17.94 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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