Margaret T. Marshall, M.D.
NPI 1639170475ActiveIndividual· Emergency Medicine· Encinitas, CA
Emergency Medicine (M.D.) in Encinitas, California, trained at University of California, San Diego School of Medicine (class of 2001). 431 Medicare patients in 2024, $66,858 paid; nearly all of their 354 Part D prescriptions were generic (95%).
Overview
| NPI | 1639170475 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 2, 2005 |
| Last updated in NPPES | Nov 25, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | A87417 | 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 - Emergency Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 431 |
|---|---|
| Services billed | 2,883 across 80 procedure codes |
| Paid by Medicare | $66,858 |
Part D prescriptions in 2024
| Prescriptions (claims) | 354 · 371 30-day fills |
|---|---|
| Patients | 210 |
| Total drug cost | $9,785 |
| Generic share | 95% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Emergency Medicine |
Medical group
- Scripps HealthLa Jolla, CA · 1,433 clinicians
Hospital affiliation
- Scripps Green HospitalLa Jolla, CA
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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All 39 emergency medicine physicians in Encinitas · All emergency medicine physicians in California