Debby Chung, MD
NPI 1235608316ActiveIndividual· Internal Medicine· Long Beach, CA
Internal Medicine (MD) with Inpatient Specialists of California PC and 1 other group, practicing in Long Beach, California. Medicare paid $3,508 for services to 24 patients in 2024. Grifols USA, LLC was the largest of 9 companies reporting payments in 2025, $306.20 in all, mostly food and beverage. Lists St Mary Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1235608316 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Nov 18, 2018 |
| Last updated in NPPES | Mar 17, 2021 |
| Certified by provider | Mar 17, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | PTL1237 | CA |
| 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 24 |
|---|---|
| Services billed | 41 across 5 procedure codes |
| Paid by Medicare | $3,508 |
Education and affiliations
| Graduation year | 2018 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Inpatient Specialists of California PCOakdale, CA · 385 clinicians
- Socal HospitalistsLong Beach, CA · 30 clinicians
Hospital affiliations
- St Mary Medical CenterLong Beach, CA
- Temecula Valley HospitalTemecula, CA
Industry payments (Open Payments)
- 2025$306.20 · 10 payments from 9 companies
- 2024$519.03 · 7 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Grifols USA, LLC | $60.33 | 2 |
| Genzyme Corporation | $39.15 | 1 |
| Harmony Biosciences LLC | $39.14 | 1 |
| United Therapeutics Corporation | $33.01 | 1 |
| Regeneron Healthcare Solutions, Inc. | $32.41 | 1 |
What the 2025 payments were for
- Food and Beverage$306.20 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 298 internal medicine physicians in Long Beach · All internal medicine physicians in California