Elisa Lee Chang, M.D.
NPI 1811284193ActiveIndividual· Internal Medicine, Infectious Disease· Pasadena, CA
Internal Medicine, Infectious Disease (M.D.) in Pasadena, California, trained at Chicago College of Medicine and Surgery (class of 2008). 274 Medicare patients in 2024, $123,679 paid; nearly all of their 312 Part D prescriptions were generic (93%). Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $670.35 in all, mostly food and beverage.
Overview
| NPI | 1811284193 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2011 |
| Last updated in NPPES | Oct 27, 2023 |
| Certified by provider | Oct 27, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | A117197 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Infectious Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 274 |
|---|---|
| Services billed | 1,708 across 9 procedure codes |
| Paid by Medicare | $123,679 |
Part D prescriptions in 2024
| Prescriptions (claims) | 312 · 334 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $66,745 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | Chicago College of Medicine and Surgery |
|---|---|
| Graduation year | 2008 |
| Medicare specialty | Infectious Disease |
| Secondary specialties | Internal Medicine |
Hospital affiliations
- Huntington HospitalPasadena, CA
- Usc Arcadia HospitalArcadia, CA
Other facilities
- Pasadena Home Health CareHome health agency · Pasadena, CA
Industry payments (Open Payments)
- 2025$670.35 · 21 payments from 8 companies
- 2024$514.73 · 15 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $245.13 | 10 |
| Shockwave Medical, Inc | $163.44 | 1 |
| Astellas Pharma US Inc | $66.74 | 2 |
| Shionogi Inc | $51.77 | 2 |
| Merck Sharp & Dohme LLC | $48.65 | 2 |
What the 2025 payments were for
- Food and Beverage$633.36 · 20 payments
- Education$36.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Infectious Disease providers in Pasadena
- 1104182542
- 1780390922
- 1952700759
- 1467346205
- 1558656090
- 1841496163
- 1205369006
- 1396935243
- 1275251563
- 1801248067
- 1215021720
- 1790988269
All Internal Medicine, Infectious Disease providers in California →