Catherine Mary McMillan
NPI 1114580222ActiveIndividual· Internal Medicine· San Juan Capistrano, CA
Internal Medicine in San Juan Capistrano, California, licensed in CA, with an NPI issued in April 2019. Their prescriptions cost Medicare Part D more than their services did: $88,543 for 647 claims, against $26,289 paid for services in 2024. Lilly USA, LLC was the largest of 12 companies reporting payments in 2024, $428.15 in all, mostly food and beverage.
Overview
| NPI | 1114580222 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 16, 2019 |
| Last updated in NPPES | Nov 28, 2023 |
| Certified by provider | Nov 28, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 20A19880 | 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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 100 |
|---|---|
| Services billed | 331 across 26 procedure codes |
| Paid by Medicare | $26,289 |
Part D prescriptions in 2024
| Prescriptions (claims) | 647 · 1,461 30-day fills |
|---|---|
| Patients | 111 |
| Total drug cost | $88,543 |
| Generic share | 89% of claims |
Industry payments (Open Payments)
- 2024$428.15 · 18 payments from 12 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $112.85 | 4 |
| Abbvie Inc. | $57.85 | 2 |
| Mylan Specialty L.P. | $50.23 | 2 |
| Glaxosmithkline, LLC. | $40.55 | 2 |
| Merck Sharp & Dohme LLC | $32.38 | 1 |
What the 2024 payments were for
- Food and Beverage$428.15 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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