Kai H. Yang, MD
NPI 1093851321ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· New Haven, CT
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in New Haven, Connecticut, trained at Johns Hopkins University School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $1,680,899 for 3,195 claims, against $52,029 paid for services in 2024. Insulet Corporation was the largest of 12 companies reporting payments in 2025, $629.34 in all, mostly food and beverage.
Overview
| NPI | 1093851321 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jan 30, 2007 |
| Last updated in NPPES | Nov 12, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 30968 | CT |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 261 |
|---|---|
| Services billed | 1,464 across 18 procedure codes |
| Paid by Medicare | $52,029 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,195 · 8,423 30-day fills |
|---|---|
| Patients | 541 |
| Total drug cost | $1,680,899 |
| Generic share | 41% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Endocrine Assoc of CT LLCHamden, CT · 10 clinicians
Hospital affiliations
- Bridgeport HospitalBridgeport, CT
- Yale-New Haven HospitalNew Haven, CT
Industry payments (Open Payments)
- 2025$629.34 · 26 payments from 12 companies
- 2024$328.35 · 12 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insulet Corporation | $207.39 | 8 |
| Mannkind Corporation | $75.20 | 2 |
| Sequel Med Tech, LLC | $64.97 | 3 |
| Novo Nordisk Inc | $51.80 | 3 |
| Abbvie Inc. | $45.96 | 2 |
What the 2025 payments were for
- Food and Beverage$586.84 · 25 payments
- Education$42.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 47 endocrinologists in New Haven · All endocrinologists in Connecticut