Chi Tang, MD
NPI 1013263870ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Ansonia, CT
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Griffin Faculty Physicians Inc, practicing in Ansonia, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $2,302,815 for 3,849 claims, against $48,793 paid for services in 2024. Lilly USA, LLC was the largest of 26 companies reporting payments in 2025, $968.51 in all, mostly food and beverage. Lists Bridgeport Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1013263870 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 31, 2012 |
| Last updated in NPPES | Sep 19, 2023 |
| Certified by provider | Sep 19, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 57294 | CT |
| Internal Medicine | 207R00000X | 57294 | 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 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 254 |
|---|---|
| Services billed | 1,046 across 17 procedure codes |
| Paid by Medicare | $48,793 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,849 · 9,436 30-day fills |
|---|---|
| Patients | 554 |
| Total drug cost | $2,302,815 |
| Generic share | 49% of claims |
Education and affiliations
| Graduation year | 2011 |
|---|---|
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Griffin Faculty Physicians IncDerby, CT · 134 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Griffin HospitalDerby, CT
Industry payments (Open Payments)
- 2025$968.51 · 47 payments from 26 companies
- 2024$792.41 · 36 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $122.14 | 7 |
| Cequr Corporation | $82.85 | 3 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $67.16 | 4 |
| Antares Pharma, Inc. | $56.83 | 2 |
| Amgen Inc. | $55.53 | 3 |
What the 2025 payments were for
- Food and Beverage$968.51 · 47 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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