Sabarish R. Ayyappan, MD
NPI 1558551507ActiveIndividual· Internal Medicine, Hematology· Iowa City, IA
Internal Medicine, Hematology (MD) with City of Hope Medical Group of Georgia LLC, practicing in Iowa City, Iowa. Their prescriptions cost Medicare Part D more than their services did: $3,333,093 for 761 claims, against $41,308 paid for services in 2024. Beone Medicines USA, Inc. was the largest of 11 companies reporting payments in 2025, $60,810 in all, mostly consulting fees. Lists Southeastern Regional Medical Center, Inc as a hospital affiliation.
Overview
| NPI | 1558551507 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 26, 2007 |
| Last updated in NPPES | Jul 15, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology Primary | 207RH0000X | MD-46041 | IA |
| Internal Medicine | 207R00000X | MD-46041 | IA |
| Internal Medicine | 207R00000X | 243101 | MA |
| Internal Medicine | 207R00000X | 35-097600 | OH |
| Internal Medicine, Hematology | 207RH0000X | 35097600 | OH |
| Hospitalist | 208M00000X | 243101 | MA |
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 (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 125 |
|---|---|
| Services billed | 513 across 19 procedure codes |
| Paid by Medicare | $41,308 |
Part D prescriptions in 2024
| Prescriptions (claims) | 761 · 839 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $3,333,093 |
| Generic share | 76% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Hematology |
Medical group
- City of Hope Medical Group of Georgia LLCNewnan, GA · 135 clinicians
Hospital affiliation
Industry payments (Open Payments)
- 2025$60,810 · 65 payments from 11 companies
- 2024$48,237 · 62 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Beone Medicines USA, Inc. | $24,864 | 17 |
| Abbvie Inc. | $20,627 | 29 |
| Acrotech Biopharma Inc. | $3,482 | 4 |
| E.R. Squibb & Sons, L.L.C. | $3,343 | 1 |
| Genmab U.S., Inc. | $3,274 | 4 |
What the 2025 payments were for
- Consulting Fee$28,444 · 15 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$24,650 · 7 payments
- Travel and Lodging$6,048 · 19 payments
- Food and Beverage$1,668 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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