Larry J. Marshall, MD
NPI 1114018132ActiveIndividual· Family Medicine· Lakeside, CA
Family Medicine (MD) in Lakeside, California, licensed in CA and NV, with an NPI issued in September 2006. Their prescriptions cost Medicare Part D more than their services did: $468,194 for 7,640 claims, against $45,738 paid for services in 2024. Lilly USA, LLC was the largest of 7 companies reporting payments in 2025, $266.31 in all, mostly food and beverage. Lists Grossmont Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1114018132 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 27, 2006 |
| Last updated in NPPES | Dec 16, 2020 |
| Certified by provider | Dec 16, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A52344 | CA |
| Family Medicine | 207Q00000X | 16913 | NV |
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 - Family Practice (CA); Practitioner - Family Practice (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 226 |
|---|---|
| Services billed | 13,285 across 30 procedure codes |
| Paid by Medicare | $45,738 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,640 · 14,992 30-day fills |
|---|---|
| Patients | 463 |
| Total drug cost | $468,194 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 1985 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Hospital affiliations
- Grossmont HospitalLa Mesa, CA
- Sharp Memorial HospitalSan Diego, CA
Other facilities
- Archer Health IncHome health agency · Carlsbad, CA
- Los Robles HealthcareHome health agency · Thousand Oaks, CA
- Silver Tree Home Health IncHome health agency · San Diego, CA
Industry payments (Open Payments)
- 2025$266.31 · 14 payments from 7 companies
- 2024$302.12 · 15 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $96.71 | 4 |
| Boston Scientific Corporation | $52.53 | 3 |
| Pfizer Inc. | $52.27 | 3 |
| Novo Nordisk Inc | $18.19 | 1 |
| Kowa Pharmaceuticals America, Inc. | $16.68 | 1 |
What the 2025 payments were for
- Food and Beverage$266.31 · 14 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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