Karen Keller Baker, MD
NPI 1457641433ActiveIndividual· Emergency Medicine· Cheverly, MD
Emergency Medicine (MD) in Cheverly, Maryland, licensed in MD and CA, with an NPI issued in April 2011. 256 Medicare patients in 2024, $37,663 paid; nearly all of their 53 Part D prescriptions were generic (98%). Merck Sharp & Dohme LLC was the largest of 2 companies reporting payments in 2025, $41.92 in all, mostly food and beverage.
Overview
| NPI | 1457641433 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 12, 2011 |
| Last updated in NPPES | Mar 17, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Emergency Medicine Primary | 207P00000X | D77553 | MD |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Emergency Medicine | 207P00000X | A122375 | 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 (DC); Practitioner - Emergency Medicine (MD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 256 |
|---|---|
| Services billed | 370 across 22 procedure codes |
| Paid by Medicare | $37,663 |
Part D prescriptions in 2024
| Prescriptions (claims) | 53 · 53 30-day fills |
|---|---|
| Patients | 43 |
| Total drug cost | $334.92 |
| Generic share | 98% of claims |
Industry payments (Open Payments)
- 2025$41.92 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $26.93 | 1 |
| Stryker Corporation | $14.99 | 1 |
What the 2025 payments were for
- Food and Beverage$41.92 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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