Clemens Bergwitz, MD
NPI 1518957067ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· New Haven, CT
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Yale University, practicing in New Haven, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $341,408 for 1,173 claims, against $36,449 paid for services in 2024. Biomarin Pharmaceutical Inc. was the largest of 2 companies reporting payments in 2025, $4,837 in all, mostly consulting fees. Lists Bridgeport Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1518957067 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 26, 2005 |
| Last updated in NPPES | Nov 25, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 52826 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 861 |
|---|---|
| Services billed | 1,051 across 9 procedure codes |
| Paid by Medicare | $36,449 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,173 · 2,196 30-day fills |
|---|---|
| Patients | 229 |
| Total drug cost | $341,408 |
| Generic share | 80% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Yale UniversityNew Haven, CT · 2,645 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Greenwich Hospital Association -Greenwich, CT
- Westerly HospitalWesterly, RI
- Yale-New Haven HospitalNew Haven, CT
Other facilities
- Gaylord Hospital IncLong-term care hospital · Wallingford, CT
Industry payments (Open Payments)
- 2025$4,837 · 4 payments from 2 companies
- 2024$6,396 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Biomarin Pharmaceutical Inc. | $2,737 | 2 |
| Kyowa Kirin, Inc. | $2,100 | 2 |
What the 2025 payments were for
- Consulting Fee$4,837 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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