Michael L. Cheng, MD
NPI 1306105309ActiveIndividual· Internal Medicine, Medical Oncology· San Francisco, CA
Internal Medicine, Medical Oncology (MD) in San Francisco, California, trained at University of California, Geffen School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $2,319,169 for 170 claims, against $61,591 paid for services in 2024. Bayer Healthcare Pharmaceuticals Inc. was the largest of 6 companies reporting payments in 2025, $4,630 in all, mostly travel and lodging.
Overview
| NPI | 1306105309 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 10, 2012 |
| Last updated in NPPES | Sep 18, 2024 |
| Certified by provider | Sep 18, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | A128157 | CA |
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 - Hematology/Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 89 |
|---|---|
| Services billed | 1,318 across 19 procedure codes |
| Paid by Medicare | $61,591 |
Part D prescriptions in 2024
| Prescriptions (claims) | 170 · 171 30-day fills |
|---|---|
| Patients | 27 |
| Total drug cost | $2,319,169 |
| Generic share | 24% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliation
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$4,630 · 30 payments from 6 companies
- 2024$1,580 · 15 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Bayer Healthcare Pharmaceuticals Inc. | $1,834 | 18 |
| Janssen Biotech, Inc. | $1,350 | 1 |
| Merck Sharp & Dohme LLC | $1,213 | 8 |
| Pfizer Inc. | $132.23 | 1 |
| Genentech USA, Inc. | $68.00 | 1 |
What the 2025 payments were for
- Travel and Lodging$2,344 · 11 payments
- Consulting Fee$1,350 · 1 payment
- Food and Beverage$935.63 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other medical oncologists in San Francisco
- 1053375444
- 1144647421
- 1225529928
- 1245692839
- 1275516171
- 1285897736
- 1306803812
- 1326058777
- 1356357347
- 1548224058
- 1568755296
- 1568857456
All 62 medical oncologists in San Francisco · All medical oncologists in California