Christopher Haekang Chay, M.D.
NPI 1699764878ActiveIndividual· Internal Medicine, Hematology & Oncology· Asheville, NC
Internal Medicine, Hematology & Oncology (M.D.) in Asheville, North Carolina, trained at University of North Carolina at Chapel Hill School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $6,352,871 for 2,308 claims, against $3,194,998 paid for services in 2024. Caris Mpi, Inc. was the largest of 29 companies reporting payments in 2025, $2,511 in all, mostly food and beverage.
Overview
| NPI | 1699764878 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 19, 2005 |
| Last updated in NPPES | Dec 29, 2022 |
| Certified by provider | Dec 29, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 9701282 | NC |
| Allergy & Immunology | 207K00000X | 97-01282 | NC |
| Internal Medicine, Hematology | 207RH0000X | 9701282 | NC |
| Internal Medicine, Medical Oncology | 207RX0202X | 9701282 | NC |
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 - Hematology/Oncology (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,082 |
|---|---|
| Services billed | 130,308 across 159 procedure codes |
| Paid by Medicare | $3,194,998 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,308 · 3,006 30-day fills |
|---|---|
| Patients | 351 |
| Total drug cost | $6,352,871 |
| Generic share | 74% of claims |
Education and affiliations
| Medical school | University of North Carolina at Chapel Hill School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Hematology/Oncology |
Medical group
- American Oncology Partners PAFort Wayne, IN · 391 clinicians
Hospital affiliations
- Adventhealth HendersonvilleHendersonville, NC
- Memorial Mission Hospital and Asheville Surgery CeAsheville, NC
- Pardee Hospital Henderson CountyHendersonville, NC
- The McDowell HospitalMarion, NC
- Transylvania Regional Hospital, IncBrevard, NC
Industry payments (Open Payments)
- 2025$2,511 · 64 payments from 29 companies
- 2024$2,153 · 63 payments from 30 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Caris Mpi, Inc. | $1,136 | 3 |
| Novartis Pharmaceuticals Corporation | $194.78 | 7 |
| E.R. Squibb & Sons, L.L.C. | $132.62 | 7 |
| Janssen Biotech, Inc. | $127.35 | 5 |
| Abbvie Inc. | $107.77 | 5 |
What the 2025 payments were for
- Food and Beverage$1,611 · 63 payments
- Consulting Fee$900.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 hematologist-oncologists in Asheville · All hematologist-oncologists in North Carolina