Hendrik F. Breytenbach, M.D.
NPI 1437156262ActiveIndividual· Family Medicine· Templeton, CA
Family Medicine (M.D.) with David B. Hammer, practicing in Templeton, California. Their prescriptions cost Medicare Part D more than their services did: $535,553 for 4,595 claims, against $199,660 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 5 companies reporting payments in 2025, $527.66 in all, mostly food and beverage. Lists Adventist Health Sierra Vista and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1437156262 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2005 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A69161 | 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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 320 |
|---|---|
| Services billed | 5,518 across 42 procedure codes |
| Paid by Medicare | $199,660 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,595 · 10,495 30-day fills |
|---|---|
| Patients | 308 |
| Total drug cost | $535,553 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- David B. HammerTempleton, CA · 123 clinicians
Hospital affiliations
- Adventist Health Sierra VistaSan Luis Obispo, CA
- Adventist Health Twin CitiesTempleton, CA
- French Hospital Medical CenterSan Luis Obispo, CA
- Marian Regional Medical CenterSanta Maria, CA
Other facilities
- Central Coast Home Health IncHome health agency · San Luis Obispo, CA
- Central Coast Home Health, IncHospice · San Luis Obispo, CA
Industry payments (Open Payments)
- 2025$527.66 · 6 payments from 5 companies
- 2024$47.86 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $145.64 | 1 |
| Novo Nordisk Inc | $136.45 | 2 |
| Eisai Inc. | $124.89 | 1 |
| Aimmune Therapeutics, Inc. | $98.85 | 1 |
| Actelion Pharmaceuticals US, Inc. | $21.83 | 1 |
What the 2025 payments were for
- Food and Beverage$527.66 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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