Kenneth Sanford Blumenfeld, M.D.
NPI 1235158254ActiveIndividual· Specialist· San Jose, CA
Specialist (M.D.) in San Jose, California, trained at Johns Hopkins University School of Medicine (class of 1986). Mostly services rather than prescriptions: Medicare paid $141,713 for 265 patients in 2024, with only 24 Part D claims. Globus Medical, Inc. was the largest of 4 companies reporting payments in 2024, $1,232 in all, mostly travel and lodging.
Overview
| NPI | 1235158254 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jul 19, 2006 |
| Last updated in NPPES | Aug 21, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | A50900 | 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 - Neurosurgery (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 265 |
|---|---|
| Services billed | 531 across 46 procedure codes |
| Paid by Medicare | $141,713 |
Part D prescriptions in 2024
| Prescriptions (claims) | 24 · 27 30-day fills |
|---|---|
| Patients | 14 |
| Total drug cost | $269.56 |
| Generic share | 100% of claims |
Education and affiliations
| Medical school | Johns Hopkins University School of Medicine |
|---|---|
| Graduation year | 1986 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Hospital affiliation
- Good Samaritan HospitalSan Jose, CA
Industry payments (Open Payments)
- 2024$1,232 · 13 payments from 4 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Globus Medical, Inc. | $1,171 | 10 |
| Mimedx Group, Inc. | $24.53 | 1 |
| Astrazeneca Pharmaceuticals LP | $22.86 | 1 |
| Integra Lifesciences Corporation | $13.33 | 1 |
What the 2024 payments were for
- Travel and Lodging$1,132 · 6 payments
- Food and Beverage$99.80 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 190 Specialist providers in San Jose · All Specialist providers in California