Danielle Marie Bertoni, MD
NPI 1780843185ActiveIndividual· Surgery· Walnut Creek, CA
Surgery (MD) with Bass Medical Group, practicing in Walnut Creek, California. Mostly services rather than prescriptions: Medicare paid $63,620 for 126 patients in 2024, with only 12 Part D claims. Janssen Biotech, Inc. was the largest of 43 companies reporting payments in 2025, $2,748 in all, mostly food and beverage. Lists John Muir Medical Center - Concord Campus and 1 other hospital as hospital affiliations.
Overview
| NPI | 1780843185 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 2, 2008 |
| Last updated in NPPES | Sep 2, 2026 |
| Certified by provider | Sep 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Surgery Primary | 208600000X | A105375 | CA |
| Surgery, Surgical Oncology | 2086X0206X | A105375 | 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 - Surgical Oncology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 126 |
|---|---|
| Services billed | 350 across 23 procedure codes |
| Paid by Medicare | $63,620 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12 · 12 30-day fills |
|---|---|
| Total drug cost | $61.75 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Surgical Oncology |
| Secondary specialties | General Surgery |
| Telehealth | Offers telehealth |
Medical group
- Bass Medical GroupChico, CA · 291 clinicians
Hospital affiliations
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
Industry payments (Open Payments)
- 2025$2,748 · 110 payments from 43 companies
- 2024$2,152 · 80 payments from 35 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $311.74 | 13 |
| Astrazeneca Pharmaceuticals LP | $299.83 | 15 |
| Merck Sharp & Dohme LLC | $222.33 | 8 |
| Novartis Pharmaceuticals Corporation | $212.53 | 9 |
| Genentech USA, Inc. | $153.77 | 6 |
What the 2025 payments were for
- Food and Beverage$2,748 · 110 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 46 general surgeons in Walnut Creek · All general surgeons in California