Benjamin Yim, M.D.
NPI 1598176604ActiveIndividual· Neurological Surgery· Walnut Creek, CA
Neurological Surgery (M.D.) in Walnut Creek, California, trained at Albany Medical College of Union University (class of 2014). In 2024 Medicare paid $231,821 for 277 patients, and Part D covered 95 of their prescriptions, 48% of them generic. Rapid Medical Ltd was the largest of 10 companies reporting payments in 2025, $94,537 in all, mostly consulting fees.
Overview
| NPI | 1598176604 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 12, 2014 |
| Last updated in NPPES | May 1, 2025 |
| Certified by provider | May 1, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | A143498 | 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 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Neurosurgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 277 |
|---|---|
| Services billed | 1,061 across 83 procedure codes |
| Paid by Medicare | $231,821 |
Part D prescriptions in 2024
| Prescriptions (claims) | 95 · 114 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $21,205 |
| Generic share | 48% of claims |
Education and affiliations
| Medical school | Albany Medical College of Union University |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical groups
- Bass Medical GroupChico, CA · 291 clinicians
- Northbay Health Medical FoundationFairfield, CA · 213 clinicians
- John Muir Trauma Physicians Billing ServiceWalnut Creek, CA · 113 clinicians
- Benjamin Yim MD APCWalnut Creek, CA · 3 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$94,537 · 101 payments from 10 companies
- 2024$18,985 · 58 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Rapid Medical Ltd | $30,348 | 16 |
| Qapel Medical Inc | $15,143 | 4 |
| Stryker Corporation | $14,227 | 15 |
| Penumbra, Inc. | $11,688 | 5 |
| Medical Device Business Services, Inc. | $9,759 | 10 |
What the 2025 payments were for
- Consulting Fee$42,625 · 14 payments
- Travel and Lodging$32,241 · 25 payments
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$16,900 · 5 payments
- Food and Beverage$2,770 · 57 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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