Jason Michael Bellak, MD
NPI 1407951700ActiveIndividual· Allergy & Immunology· Las Vegas, NV
Allergy & Immunology (MD) in Las Vegas, Nevada, trained at University of Nevada School of Medicine (class of 2000). In 2024 Medicare paid $443,256 for 463 patients, and Part D covered 1,471 of their prescriptions, 73% of them generic. Novartis Pharmaceuticals Corporation was the largest of 29 companies reporting payments in 2025, $14,642 in all, mostly food and beverage.
Overview
| NPI | 1407951700 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 13, 2006 |
| Last updated in NPPES | Jul 7, 2026 |
| Certified by provider | Jul 7, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 21151 | NV |
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 (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 463 |
|---|---|
| Services billed | 26,671 across 34 procedure codes |
| Paid by Medicare | $443,256 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,471 · 2,325 30-day fills |
|---|---|
| Patients | 317 |
| Total drug cost | $376,125 |
| Generic share | 73% of claims |
Education and affiliations
| Medical school | University of Nevada School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Allergy and Asthma Center- Katz, M.D., Ltd.Las Vegas, NV · 2 clinicians
Industry payments (Open Payments)
- 2025$14,642 · 329 payments from 29 companies
- 2024$11,858 · 281 payments from 25 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $3,800 | 14 |
| Astrazeneca Pharmaceuticals LP | $2,897 | 76 |
| Takeda Pharmaceuticals U.S.A., Inc. | $1,532 | 25 |
| Regeneron Healthcare Solutions, Inc. | $896.18 | 30 |
| Amgen Inc. | $762.32 | 19 |
What the 2025 payments were for
- Food and Beverage$8,686 · 315 payments
- Consulting Fee$5,762 · 11 payments
- Education$193.35 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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