Karen B. Barker, M.D.
NPI 1629268263ActiveIndividual· Allergy & Immunology· Daphne, AL
Allergy & Immunology (M.D.) in Daphne, Alabama, trained at University of Virginia School of Medicine (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $714,943 for 1,079 claims, against $68,320 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 27 companies reporting payments in 2025, $4,241 in all, mostly food and beverage.
Overview
| NPI | 1629268263 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 30, 2007 |
| Last updated in NPPES | Jun 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 35873 | AL |
| Allergy & Immunology | 207K00000X | 0101245570 | VA |
| Pediatrics | 208000000X | 35873 | AL |
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 - Allergy/Immunology (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 103 |
|---|---|
| Services billed | 5,534 across 33 procedure codes |
| Paid by Medicare | $68,320 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,079 · 1,484 30-day fills |
|---|---|
| Patients | 164 |
| Total drug cost | $714,943 |
| Generic share | 63% of claims |
Education and affiliations
| Medical school | University of Virginia School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Pediatric Medicine |
Medical group
- Pulmonary Associates of Mobile PCMobile, AL · 36 clinicians
Hospital affiliation
- Thomas HospitalFairhope, AL
Industry payments (Open Payments)
- 2025$4,241 · 200 payments from 27 companies
- 2024$3,462 · 177 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $692.76 | 48 |
| Genzyme Corporation | $432.12 | 18 |
| Takeda Pharmaceuticals U.S.A., Inc. | $420.99 | 13 |
| Regeneron Healthcare Solutions, Inc. | $379.08 | 17 |
| Genentech USA, Inc. | $320.15 | 12 |
What the 2025 payments were for
- Food and Beverage$4,168 · 199 payments
- Education$73.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other allergists in Daphne
- 1578583191
- 1427253061