Chunbong Benjamin Ma, MD
NPI 1750333191ActiveIndividual· Orthopaedic Surgery, Sports Medicine· San Francisco, CA
Orthopaedic Surgery, Sports Medicine (MD) in San Francisco, California, trained at Johns Hopkins University School of Medicine (class of 1996). 348 Medicare patients in 2024, $150,310 paid; nearly all of their 86 Part D prescriptions were generic (99%). Linvatec Corporation was the largest of 3 companies reporting payments in 2025, $77,412 in all, mostly royalties and licenses.
Overview
| NPI | 1750333191 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 16, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Orthopaedic Surgery, Sports Medicine Primary | 207XX0005X | A83610 | 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 - Orthopedic Surgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 348 |
|---|---|
| Services billed | 685 across 26 procedure codes |
| Paid by Medicare | $150,310 |
Part D prescriptions in 2024
| Prescriptions (claims) | 86 · 90 30-day fills |
|---|---|
| Patients | 35 |
| Total drug cost | $594.95 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1996 |
| Medicare specialty | Orthopedic Surgery |
| 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
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- Novato Community HospitalNovato, CA
- Sonoma Valley HospitalSonoma, CA
- UCSF Health St. Mary's HospitalSan Francisco, CA
- UCSF Medical CenterSan Francisco, CA
Other facilities
- Care in Touch Home Health AgencyHome health agency · Fremont, CA
Industry payments (Open Payments)
- 2025$77,412 · 12 payments from 3 companies
- 2024$117,849 · 53 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Linvatec Corporation | $73,624 | 4 |
| Zimmer Biomet Holdings, Inc. | $2,638 | 7 |
| Stryker Corporation | $1,150 | 1 |
What the 2025 payments were for
- Royalty or License$73,624 · 4 payments
- Consulting Fee$3,650 · 7 payments
- Food and Beverage$138.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 22 sports medicine orthopedic surgeons in San Francisco · All sports medicine orthopedic surgeons in California