Caroline Hwang, M.D.
NPI 1003090085ActiveIndividual· Internal Medicine, Gastroenterology· Los Angeles, CA
Internal Medicine, Gastroenterology (M.D.) in Los Angeles, California, trained at University of California, Geffen School of Medicine (class of 2005). Their prescriptions cost Medicare Part D more than their services did: $3,732,550 for 566 claims, against $39,956 paid for services in 2024. Janssen Biotech, Inc. was the largest of 11 companies reporting payments in 2025, $88,870 in all, mostly speaking and faculty fees.
Overview
| NPI | 1003090085 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 26, 2007 |
| Last updated in NPPES | Mar 10, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | A108110 | CA |
| Internal Medicine | 207R00000X | 245362 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 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 | 192 |
|---|---|
| Services billed | 391 across 31 procedure codes |
| Paid by Medicare | $39,956 |
Part D prescriptions in 2024
| Prescriptions (claims) | 566 · 866 30-day fills |
|---|---|
| Patients | 135 |
| Total drug cost | $3,732,550 |
| Generic share | 54% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2005 |
| Medicare specialty | Gastroenterology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Hoag ClinicNewport Beach, CA · 460 clinicians
Hospital affiliation
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
Industry payments (Open Payments)
- 2025$88,870 · 219 payments from 11 companies
- 2024$31,745 · 192 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $63,361 | 72 |
| Abbvie Inc. | $24,299 | 99 |
| Pfizer Inc. | $459.07 | 20 |
| Lilly USA, LLC | $238.55 | 9 |
| Cook Medical LLC | $117.12 | 1 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$75,350 · 22 payments
- Travel and Lodging$7,945 · 11 payments
- Food and Beverage$5,486 · 185 payments
- Education$89.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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