Neil L. Kao, MD
NPI 1720089477ActiveIndividual· Allergy & Immunology, Allergy· Greenville, SC
Allergy & Immunology, Allergy (MD) in Greenville, South Carolina, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $523,189 for 2,295 claims, against $283,803 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 22 companies reporting payments in 2025, $4,642 in all, mostly food and beverage.
Overview
| NPI | 1720089477 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 3, 2005 |
| Last updated in NPPES | Jan 8, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology, Allergy Primary | 207KA0200X | 21942 | SC |
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 (SC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 548 |
|---|---|
| Services billed | 18,774 across 40 procedure codes |
| Paid by Medicare | $283,803 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,295 · 3,747 30-day fills |
|---|---|
| Patients | 371 |
| Total drug cost | $523,189 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Allergic Disease and Asthma Center PAGreenville, SC · 7 clinicians
Industry payments (Open Payments)
- 2025$4,642 · 195 payments from 22 companies
- 2024$3,503 · 172 payments from 21 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novartis Pharmaceuticals Corporation | $1,506 | 16 |
| Astrazeneca Pharmaceuticals LP | $739.73 | 63 |
| Csl Behring | $482.03 | 16 |
| Genzyme Corporation | $335.96 | 23 |
| Glaxosmithkline, LLC. | $257.63 | 19 |
What the 2025 payments were for
- Food and Beverage$3,738 · 192 payments
- Travel and Lodging$904.24 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Allergy & Immunology, Allergy providers in South Carolina