Laura A. Esswein, MD
NPI 1174596860ActiveIndividual· Allergy & Immunology, Allergy· Saint Louis, MO
Allergy & Immunology, Allergy (MD) in Saint Louis, Missouri, trained at University of Missouri, Columbia School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $92,780 for 555 claims, against $20,049 paid for services in 2024. Genzyme Corporation was the largest of 15 companies reporting payments in 2025, $1,665 in all, mostly food and beverage.
Overview
| NPI | 1174596860 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 11, 2006 |
| Last updated in NPPES | Dec 29, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology, Allergy Primary | 207KA0200X | 109792 | MO |
| Pediatrics | 208000000X | 109792 | MO |
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 (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 89 |
|---|---|
| Services billed | 1,558 across 19 procedure codes |
| Paid by Medicare | $20,049 |
Part D prescriptions in 2024
| Prescriptions (claims) | 555 · 1,010 30-day fills |
|---|---|
| Patients | 120 |
| Total drug cost | $92,780 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Allergy/Immunology |
| Telehealth | Offers telehealth |
Medical group
- Allergy, Asthma and Sinus Care Center, LLCSwansea, IL · 10 clinicians
Hospital affiliation
- Mercy Hospital St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$1,665 · 58 payments from 15 companies
- 2024$1,923 · 83 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $329.15 | 10 |
| Astrazeneca Pharmaceuticals LP | $328.13 | 15 |
| Novartis Pharmaceuticals Corporation | $147.25 | 2 |
| Ars Pharmaceuticals Operations, Inc. | $124.98 | 1 |
| Regeneron Healthcare Solutions, Inc. | $114.94 | 4 |
What the 2025 payments were for
- Food and Beverage$1,594 · 56 payments
- Education$70.60 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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