Joann H. Lin, MD
NPI 1043232564ActiveIndividual· Allergy & Immunology· McKinney, TX
Allergy & Immunology (MD) in McKinney, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $958,508 for 898 claims, against $350,262 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 25 companies reporting payments in 2025, $3,317 in all, mostly food and beverage.
Overview
| NPI | 1043232564 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jul 24, 2006 |
| Last updated in NPPES | Sep 29, 2026 |
| Certified by provider | Sep 29, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | M4293 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 229 |
|---|---|
| Services billed | 16,017 across 49 procedure codes |
| Paid by Medicare | $350,262 |
Part D prescriptions in 2024
| Prescriptions (claims) | 898 · 1,281 30-day fills |
|---|---|
| Patients | 177 |
| Total drug cost | $958,508 |
| Generic share | 47% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Allergy/Immunology |
Industry payments (Open Payments)
- 2025$3,317 · 114 payments from 25 companies
- 2024$2,296 · 112 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $936.42 | 37 |
| Regeneron Healthcare Solutions, Inc. | $592.67 | 22 |
| Ars Pharmaceuticals Operations, Inc. | $270.98 | 6 |
| Genzyme Corporation | $269.07 | 9 |
| Agepha Pharma Fz LLC | $153.81 | 1 |
What the 2025 payments were for
- Food and Beverage$3,258 · 113 payments
- Education$58.77 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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