Mark William Simon, MD
NPI 1649776584ActiveIndividual· Emergency Medicine, Medical Toxicology· San Diego, CA
Emergency Medicine, Medical Toxicology (MD) with University Physicians Incorporated and 1 other group, practicing in San Diego, California. In 2024 Medicare paid $18,881 for 157 patients, and Part D covered 67 of their prescriptions, 87% of them generic. Lists Uc San Diego Health Hillcrest - Hillcrest Med Ctr and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1649776584 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 31, 2018 |
| Last updated in NPPES | Aug 21, 2026 |
| Certified by provider | Aug 21, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine, Medical Toxicology Primary | 207PT0002X | A206785 | CA |
| Emergency Medicine | 207P00000X | A206785 | CA |
| Emergency Medicine | 207P00000X | DR.0066448 | CO |
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 - Emergency Medicine (CA); Practitioner - Emergency Medicine (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 157 |
|---|---|
| Services billed | 178 across 18 procedure codes |
| Paid by Medicare | $18,881 |
Part D prescriptions in 2024
| Prescriptions (claims) | 67 · 74 30-day fills |
|---|---|
| Patients | 56 |
| Total drug cost | $2,843 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Emergency Medicine |
Medical groups
- University Physicians IncorporatedAurora, CO · 3,215 clinicians
- Poudre Valley Medical Group LLCDenver, CO · 2,440 clinicians
Hospital affiliations
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
- Uchealth Broomfield HospitalBroomfield, CO
- Uchealth Highlands Ranch HospitalHighlands Ranch, CO
- University of Colorado Hospital AuthorityAurora, CO
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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