Diane Choi Yang, MD, MPH
Opted out of Medicare from April 2025 to April 2027. Internal Medicine (MD, MPH) in Lone Tree, Colorado, licensed in CO, with an NPI issued in June 2009. Their prescriptions cost Medicare Part D more than their services did: $459,398 for 5,065 claims, against $66,612 paid for services in 2024. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2024, $311.93 in all, mostly food and beverage.
Overview
| NPI | 1306072202 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MPH |
| Sole proprietor | No |
| NPI issued | Jun 5, 2009 |
| Last updated in NPPES | Aug 29, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 52873 | CO |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Opt-out | Opted out Apr 1, 2025 – Apr 1, 2027 |
| Can order and refer | Yes |
| Accepts assignment | Yes (participating) |
During an opt-out period the provider sees Medicare patients only under private contracts, and Medicare does not pay claims for their services.
Medicare services in 2024
| Medicare patients | 375 |
|---|---|
| Services billed | 1,899 across 44 procedure codes |
| Paid by Medicare | $66,612 |
Part D prescriptions in 2024
| Prescriptions (claims) | 5,065 · 12,968 30-day fills |
|---|---|
| Patients | 460 |
| Total drug cost | $459,398 |
| Generic share | 87% of claims |
Industry payments (Open Payments)
- 2024$311.93 · 3 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $168.99 | 2 |
| Abiomed | $142.94 | 1 |
What the 2024 payments were for
- Food and Beverage$311.93 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 55 internal medicine physicians in Lone Tree · All internal medicine physicians in Colorado