William Larry Davidson II, MD
NPI 1578583191ActiveIndividual· Allergy & Immunology· Daphne, AL
Allergy & Immunology (MD) in Daphne, Alabama, trained at University of South Alabama College of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,577,134 for 1,245 claims, against $102,823 paid for services in 2024. Genzyme Corporation was the largest of 23 companies reporting payments in 2025, $7,617 in all, mostly food and beverage.
Overview
| NPI | 1578583191 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Jun 28, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 27233 | AL |
| Internal Medicine, Allergy & Immunology | 207RA0201X | 27233 | 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 | 188 |
|---|---|
| Services billed | 5,898 across 35 procedure codes |
| Paid by Medicare | $102,823 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,245 · 1,639 30-day fills |
|---|---|
| Patients | 237 |
| Total drug cost | $1,577,134 |
| Generic share | 56% of claims |
Education and affiliations
| Medical school | University of South Alabama College of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
Medical group
- Pulmonary Associates of Mobile PCMobile, AL · 36 clinicians
Hospital affiliations
- Baldwin HealthFoley, AL
- Thomas HospitalFairhope, AL
Industry payments (Open Payments)
- 2025$7,617 · 182 payments from 23 companies
- 2024$4,755 · 147 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $4,129 | 19 |
| Astrazeneca Pharmaceuticals LP | $660.03 | 34 |
| Takeda Pharmaceuticals U.S.A., Inc. | $340.01 | 10 |
| Regeneron Healthcare Solutions, Inc. | $287.84 | 16 |
| Genentech USA, Inc. | $272.98 | 10 |
What the 2025 payments were for
- Food and Beverage$3,741 · 177 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,312 · 1 payment
- Consulting Fee$1,446 · 1 payment
- Education$90.88 · 2 payments
- Travel and Lodging$28.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other allergists in Daphne
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- 1427253061