Ryan Matthew Richstein, DO
NPI 1376030858ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Rego Park, NY
Internal Medicine, Endocrinology, Diabetes & Metabolism (DO) in Rego Park, New York, trained at Rowan University School of Osteopathic Medicine (class of 2018). Their prescriptions cost Medicare Part D more than their services did: $1,055,737 for 1,887 claims, against $30,395 paid for services in 2024. Xeris Pharmaceuticals, Inc. reported $186.27 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1376030858 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 19, 2018 |
| Last updated in NPPES | Aug 11, 2023 |
| Certified by provider | Aug 11, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 308976-01 | 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) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 89 |
|---|---|
| Services billed | 657 across 18 procedure codes |
| Paid by Medicare | $30,395 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,887 · 4,361 30-day fills |
|---|---|
| Patients | 230 |
| Total drug cost | $1,055,737 |
| Generic share | 37% of claims |
Education and affiliations
| Medical school | Rowan University School of Osteopathic Medicine |
|---|---|
| Graduation year | 2018 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- North Shore-Lij Medical PCStaten Island, NY · 6,440 clinicians
Hospital affiliation
- North Shore University HospitalManhasset, NY
Industry payments (Open Payments)
- 2025$186.27 · 12 payments from 1 company
- 2024$118.79 · 8 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Xeris Pharmaceuticals, Inc. | $186.27 | 12 |
What the 2025 payments were for
- Food and Beverage$186.27 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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