Joseph Daniel Herman, NP
NPI 1841984820ActiveIndividual· Nurse Practitioner· Mill Valley, CA
Nurse Practitioner (NP) with One Medical Group Inc and 1 other group, practicing in Mill Valley, California. Their prescriptions cost Medicare Part D more than their services did: $48,725 for 437 claims, against $3,928 paid for services in 2024. Novo Nordisk Inc was the largest of 15 companies reporting payments in 2025, $588.43 in all, mostly food and beverage. Lists Marinhealth Medical Center as a hospital affiliation.
Overview
| NPI | 1841984820 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | NP |
| Sole proprietor | Yes |
| NPI issued | Jun 5, 2023 |
| Last updated in NPPES | Oct 7, 2025 |
| Certified by provider | Oct 7, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 95035489 | 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 - Nurse Practitioner (CA); Practitioner - Nurse Practitioner (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 37 |
|---|---|
| Services billed | 59 across 17 procedure codes |
| Paid by Medicare | $3,928 |
Part D prescriptions in 2024
| Prescriptions (claims) | 437 · 692 30-day fills |
|---|---|
| Patients | 175 |
| Total drug cost | $48,725 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2021 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- One Medical Group IncSan Jose, CA · 331 clinicians
- Baker Pediatrics LLCParamus, NJ · 18 clinicians
Hospital affiliation
- Marinhealth Medical CenterGreenbrae, CA
Industry payments (Open Payments)
- 2025$588.43 · 32 payments from 15 companies
- 2024$666.00 · 30 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $93.13 | 5 |
| Exact Sciences Corporation | $87.99 | 4 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $74.15 | 4 |
| Viiv Healthcare Company | $67.97 | 3 |
| Glaxosmithkline, LLC. | $49.95 | 3 |
What the 2025 payments were for
- Food and Beverage$588.43 · 32 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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