Thomas Chacko, MD
NPI 1356443089ActiveIndividual· Allergy & Immunology· Alpharetta, GA
Allergy & Immunology (MD) in Alpharetta, Georgia, trained at Jefferson Medical College of Thomas Jefferson University (class of 2002). Their prescriptions cost Medicare Part D more than their services did: $362,110 for 774 claims, against $149,656 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 12 companies reporting payments in 2025, $13,252 in all, mostly consulting fees.
Overview
| NPI | 1356443089 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 2, 2006 |
| Last updated in NPPES | Oct 26, 2026 |
| Certified by provider | Oct 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 59383 | GA |
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 (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 258 |
|---|---|
| Services billed | 11,290 across 25 procedure codes |
| Paid by Medicare | $149,656 |
Part D prescriptions in 2024
| Prescriptions (claims) | 774 · 1,104 30-day fills |
|---|---|
| Patients | 225 |
| Total drug cost | $362,110 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 2002 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Thomas Chacko MD PCAlpharetta, GA · 3 clinicians
Industry payments (Open Payments)
- 2025$13,252 · 85 payments from 12 companies
- 2024$19,283 · 49 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $9,283 | 13 |
| Ars Pharmaceuticals Operations, Inc. | $2,353 | 13 |
| Genzyme Corporation | $752.44 | 16 |
| Regeneron Healthcare Solutions, Inc. | $252.35 | 11 |
| Amgen Inc. | $231.39 | 13 |
What the 2025 payments were for
- Consulting Fee$7,250 · 1 payment
- Food and Beverage$2,367 · 79 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$2,000 · 1 payment
- Travel and Lodging$1,616 · 3 payments
- Education$19.31 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Allergy & Immunology providers in Alpharetta
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