Loretta Sullivan-Chang, MD
NPI 1972780062ActiveIndividual· Internal Medicine· Greenwood Village, CO
Internal Medicine (MD) in Greenwood Village, Colorado, trained at University of Colorado School of Medicine, Denver (class of 2005). Enrolled in Medicare as practitioner - internal medicine. Rigel Pharmaceuticals, Inc. was the largest of 9 companies reporting payments in 2025, $1,326 in all, mostly consulting fees.
Overview
| NPI | 1972780062 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Jan 30, 2008 |
| Last updated in NPPES | Apr 28, 2025 |
| Certified by provider | Apr 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 49624 | CO |
| Internal Medicine | 207R00000X | A100131 | CA |
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) |
|---|
Education and affiliations
| Medical school | University of Colorado School of Medicine, Denver |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Internal Medicine |
Medical group
- Mauricio Waintrub, M.D., P.CAurora, CO · 26 clinicians
Industry payments (Open Payments)
- 2025$1,326 · 13 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Rigel Pharmaceuticals, Inc. | $1,085 | 2 |
| Astrazeneca Pharmaceuticals LP | $48.55 | 3 |
| Amgen Inc. | $45.98 | 2 |
| Madrigal Pharmaceuticals | $31.86 | 1 |
| Otsuka America Pharmaceutical, Inc. | $31.02 | 1 |
What the 2025 payments were for
- Consulting Fee$1,075 · 1 payment
- Food and Beverage$250.88 · 12 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 43 internal medicine physicians in Greenwood Village · All internal medicine physicians in Colorado