Stella Ilyayeva, MD
NPI 1619082625ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Rego Park, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Ajay 28 LLC and 1 other group, practicing in Rego Park, New York. Their prescriptions cost Medicare Part D more than their services did: $23,293,072 for 68,635 claims, against $712,459 paid for services in 2024. Amgen Inc. was the largest of 30 companies reporting payments in 2025, $22,294 in all, mostly speaking and faculty fees.
Overview
| NPI | 1619082625 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 20, 2006 |
| Last updated in NPPES | Mar 12, 2024 |
| Certified by provider | Mar 12, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 211824 | NY |
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 - Endocrinology (NY); Practitioner - Internal Medicine (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,075 |
|---|---|
| Services billed | 25,894 across 109 procedure codes |
| Paid by Medicare | $712,459 |
Part D prescriptions in 2024
| Prescriptions (claims) | 68,635 · 100,746 30-day fills |
|---|---|
| Patients | 2,690 |
| Total drug cost | $23,293,072 |
| Generic share | 48% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Endocrinology |
| Telehealth | Offers telehealth |
Medical groups
- Ajay 28 LLCForest Hills, NY · 17 clinicians
- Atlantic Endocrinology and Diabetes PCRego Park, NY · 4 clinicians
Industry payments (Open Payments)
- 2025$22,294 · 249 payments from 30 companies
- 2024$16,293 · 281 payments from 35 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $12,529 | 42 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $3,903 | 13 |
| Lilly USA, LLC | $1,052 | 8 |
| Corcept Therapeutics | $656.26 | 18 |
| Amphastar Pharmaceuticals, Inc. | $637.01 | 41 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$10,044 · 9 payments
- Food and Beverage$6,178 · 232 payments
- Consulting Fee$4,675 · 4 payments
- Travel and Lodging$1,398 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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