Erika R. Larson, MD
NPI 1730169442ActiveIndividual· Internal Medicine· Rosedale, MD
Internal Medicine (MD) with Baltimore Medical System, Inc., practicing in Rosedale, Maryland. Their prescriptions cost Medicare Part D more than their services did: $127,818 for 942 claims, against $8,353 paid for services in 2024. Exact Sciences Corporation reported $36.25 in payments in 2025, mostly food and beverage. Lists Johns Hopkins Bayview Medical Center as a hospital affiliation.
Overview
| NPI | 1730169442 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 19, 2006 |
| Last updated in NPPES | Jul 22, 2024 |
| Certified by provider | Jul 22, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | D0053393 | MD |
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 - Pediatric Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 64 |
|---|---|
| Services billed | 130 across 19 procedure codes |
| Paid by Medicare | $8,353 |
Part D prescriptions in 2024
| Prescriptions (claims) | 942 · 2,336 30-day fills |
|---|---|
| Patients | 146 |
| Total drug cost | $127,818 |
| Generic share | 84% of claims |
Education and affiliations
| Graduation year | 1994 |
|---|---|
| Medicare specialty | Pediatric Medicine |
| Secondary specialties | Internal Medicine |
Medical group
- Baltimore Medical System, Inc.Baltimore, MD · 87 clinicians
Hospital affiliation
- Johns Hopkins Bayview Medical CenterBaltimore, MD
Industry payments (Open Payments)
- 2025$36.25 · 2 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $36.25 | 2 |
What the 2025 payments were for
- Food and Beverage$36.25 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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