Bianca W. Chang
NPI 1396188363ActiveIndividual· Internal Medicine, Gastroenterology· West Hollywood, CA
Internal Medicine, Gastroenterology in West Hollywood, California, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $80,476 for 126 claims, against $48,935 paid for services in 2024. Genzyme Corporation was the largest of 5 companies reporting payments in 2025, $688.19 in all, mostly food and beverage.
Overview
| NPI | 1396188363 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Apr 9, 2013 |
| Last updated in NPPES | Jun 27, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A135294 | CA |
| Internal Medicine, Gastroenterology | 207RG0100X | 036.140821 | IL |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Gastroenterology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 393 |
|---|---|
| Services billed | 911 across 41 procedure codes |
| Paid by Medicare | $48,935 |
Part D prescriptions in 2024
| Prescriptions (claims) | 126 · 195 30-day fills |
|---|---|
| Patients | 46 |
| Total drug cost | $80,476 |
| Generic share | 47% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- Cedars-Sinai Medical CenterWest Hollywood, CA · 799 clinicians
Hospital affiliations
- Cedars-Sinai Medical CenterLos Angeles, CA
- Ronald Reagan UCLA Medical CenterLos Angeles, CA
Industry payments (Open Payments)
- 2025$688.19 · 10 payments from 5 companies
- 2024$2,321 · 21 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Genzyme Corporation | $330.66 | 4 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $116.64 | 1 |
| Cook Medical LLC | $105.79 | 1 |
| Ardelyx, Inc. | $92.25 | 3 |
| Enterra Medical, Inc. | $42.85 | 1 |
What the 2025 payments were for
- Food and Beverage$688.19 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 gastroenterologists in West Hollywood · All gastroenterologists in California