Karen Elizabeth Chang, MD
NPI 1134121189ActiveIndividual· Internal Medicine· Colorado Springs, CO
Internal Medicine (MD) in Colorado Springs, Colorado, trained at University of Texas Medical School at Houston (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $419,630 for 4,107 claims, against $78,733 paid for services in 2024. Qiagen, LLC reported $15.66 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1134121189 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Apr 20, 2020 |
| Certified by provider | Apr 20, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | DR-49665 | CO |
| Internal Medicine | 207R00000X | ME0074258 | FL |
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 - Internal Medicine (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 371 |
|---|---|
| Services billed | 2,585 across 46 procedure codes |
| Paid by Medicare | $78,733 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,107 · 10,910 30-day fills |
|---|---|
| Patients | 404 |
| Total drug cost | $419,630 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | University of Texas Medical School at Houston |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Poudre Valley Medical Group LLCDenver, CO · 2,440 clinicians
Hospital affiliations
- Centura Health-Penrose St Francis Health ServicesColorado Springs, CO
- Parkview Medical Center, IncPueblo, CO
- Uch-Memorial Health SystemColorado Springs, CO
- Uchealth Grandview HospitalColorado Springs, CO
- Uchealth Pikes Peak Regional HospitalWoodland Park, CO
Other facilities
- Enhabit Home HealthHome health agency · Colorado Springs, CO
Industry payments (Open Payments)
- 2025$15.66 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Qiagen, LLC | $15.66 | 1 |
What the 2025 payments were for
- Food and Beverage$15.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 208 internal medicine physicians in Colorado Springs · All internal medicine physicians in Colorado