Mark Sheynshteyn, D.O
NPI 1447517883ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Staten Island, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (D.O) in Staten Island, New York, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $2,018,538 for 3,716 claims, against $77,537 paid for services in 2024. Corcept Therapeutics was the largest of 29 companies reporting payments in 2025, $3,682 in all, mostly food and beverage.
Overview
| NPI | 1447517883 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O |
| Sole proprietor | No |
| NPI issued | Apr 23, 2012 |
| Last updated in NPPES | Jan 27, 2021 |
| Certified by provider | Jan 27, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 279051 | NY |
| Internal Medicine, Endocrinology, Diabetes & Metabolism | 207RE0101X | 77673 | 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 - Endocrinology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 333 |
|---|---|
| Services billed | 831 across 22 procedure codes |
| Paid by Medicare | $77,537 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,716 · 9,089 30-day fills |
|---|---|
| Patients | 411 |
| Total drug cost | $2,018,538 |
| Generic share | 48% of claims |
Education and affiliations
| Medical school | New York College of Osteo Medicine of New York Institute of Technology |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Amboy Medical Practice PCStaten Island, NY · 173 clinicians
Hospital affiliations
- Richmond University Medical CenterStaten Island, NY
- Staten Island University HospitalStaten Island, NY
Industry payments (Open Payments)
- 2025$3,682 · 80 payments from 29 companies
- 2024$2,616 · 100 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Corcept Therapeutics | $1,728 | 9 |
| Abbott Laboratories | $339.71 | 7 |
| Tandem Diabetes Care, Inc. | $215.58 | 4 |
| Novo Nordisk Inc | $188.62 | 9 |
| Ascendis Pharma Endocrinology Inc | $141.11 | 6 |
What the 2025 payments were for
- Food and Beverage$2,247 · 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$1,435 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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