Matthew K.M. Kaw, M.D.
NPI 1821044819ActiveIndividual· Internal Medicine· El Monte, CA
Internal Medicine (M.D.) in El Monte, California, licensed in CA, with an NPI issued in May 2006. Their prescriptions cost Medicare Part D more than their services did: $1,258,595 for 15,744 claims, against $110,547 paid for services in 2024. Lilly USA, LLC was the largest of 12 companies reporting payments in 2025, $516.18 in all, mostly food and beverage.
Overview
| NPI | 1821044819 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 25, 2006 |
| Last updated in NPPES | Nov 8, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | A88602 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 266 |
|---|---|
| Services billed | 2,941 across 25 procedure codes |
| Paid by Medicare | $110,547 |
Part D prescriptions in 2024
| Prescriptions (claims) | 15,744 · 25,391 30-day fills |
|---|---|
| Patients | 682 |
| Total drug cost | $1,258,595 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Internal Medicine |
Other facilities
- Happy Home Health ServicesHome health agency · Arcadia, CA
Industry payments (Open Payments)
- 2025$516.18 · 25 payments from 12 companies
- 2024$179.74 · 9 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $117.32 | 6 |
| Novo Nordisk Inc | $79.02 | 4 |
| Ardelyx, Inc. | $75.38 | 3 |
| Pfizer Inc. | $61.90 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $51.64 | 2 |
What the 2025 payments were for
- Food and Beverage$516.18 · 25 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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