Timmy Cheng, M.D.
NPI 1295078764ActiveIndividual· Internal Medicine, Critical Care Medicine· Orange, CA
Internal Medicine, Critical Care Medicine (M.D.) in Orange, California, trained at University of California, San Diego School of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $379,684 for 898 claims, against $133,853 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 6 companies reporting payments in 2025, $1,064 in all, mostly food and beverage.
Overview
| NPI | 1295078764 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 2, 2013 |
| Last updated in NPPES | Nov 4, 2022 |
| Certified by provider | Nov 4, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Critical Care Medicine Primary | 207RC0200X | A134042 | CA |
| Internal Medicine | 207R00000X | A134042 | CA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | A134042 | 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 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 - Pulmonary Disease (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 509 |
|---|---|
| Services billed | 2,363 across 48 procedure codes |
| Paid by Medicare | $133,853 |
Part D prescriptions in 2024
| Prescriptions (claims) | 898 · 1,337 30-day fills |
|---|---|
| Patients | 170 |
| Total drug cost | $379,684 |
| Generic share | 38% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Pulmonary Disease |
| Telehealth | Offers telehealth |
Medical group
- Uc RegentsOrange, CA · 319 clinicians
Hospital affiliations
- Hoag Memorial Hospital PresbyterianNewport Beach, CA
- Uci Health-OrangeOrange, CA
Industry payments (Open Payments)
- 2025$1,064 · 29 payments from 6 companies
- 2024$752.51 · 11 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $657.57 | 20 |
| Genzyme Corporation | $224.21 | 3 |
| Verona Pharma, Inc. | $64.69 | 2 |
| Philips North America LLC | $56.74 | 2 |
| Liquidia Technologies, Inc. | $33.89 | 1 |
What the 2025 payments were for
- Food and Beverage$1,064 · 29 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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