Monica E. Lee, M.D.
NPI 1215129309ActiveIndividual· Internal Medicine, Hematology & Oncology· Fullerton, CA
Internal Medicine, Hematology & Oncology (M.D.) with Providence Medical Foundation, practicing in Fullerton, California. Their prescriptions cost Medicare Part D more than their services did: $1,356,360 for 797 claims, against $105,903 paid for services in 2024. Exelixis Inc. was the largest of 37 companies reporting payments in 2025, $6,691 in all, mostly food and beverage. Lists Providence St. Jude Medical Center as a hospital affiliation.
Overview
| NPI | 1215129309 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 14, 2007 |
| Last updated in NPPES | Oct 4, 2022 |
| Certified by provider | Oct 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | A101114 | CA |
| Internal Medicine | 207R00000X | A101114 | 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 | 324 |
|---|---|
| Services billed | 1,058 across 25 procedure codes |
| Paid by Medicare | $105,903 |
Part D prescriptions in 2024
| Prescriptions (claims) | 797 · 1,512 30-day fills |
|---|---|
| Patients | 241 |
| Total drug cost | $1,356,360 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Providence Medical FoundationVictorville, CA · 1,466 clinicians
Hospital affiliation
- Providence St. Jude Medical CenterFullerton, CA
Industry payments (Open Payments)
- 2025$6,691 · 176 payments from 37 companies
- 2024$7,770 · 140 payments from 33 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exelixis Inc. | $2,939 | 13 |
| Astrazeneca Pharmaceuticals LP | $311.73 | 16 |
| Glaxosmithkline, LLC. | $291.10 | 12 |
| Celgene Corporation | $268.76 | 22 |
| Novartis Pharmaceuticals Corporation | $223.26 | 10 |
What the 2025 payments were for
- Food and Beverage$4,194 · 171 payments
- Honoraria$2,100 · 1 payment
- Travel and Lodging$364.38 · 3 payments
- Education$32.72 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Hematology & Oncology providers in Fullerton
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