Matthew Clarence Breeggemann, M.D.
NPI 1083077549ActiveIndividual· Internal Medicine, Nephrology· San Francisco, CA
Internal Medicine, Nephrology (M.D.) in San Francisco, California, trained at Creighton University School of Medicine (class of 2016). Their prescriptions cost Medicare Part D more than their services did: $898,700 for 216 claims, against $106,248 paid for services in 2024. Novo Nordisk Health Care Ag was the largest of 3 companies reporting payments in 2025, $4,619 in all, mostly consulting fees.
Overview
| NPI | 1083077549 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 1, 2016 |
| Last updated in NPPES | Aug 15, 2024 |
| Certified by provider | Aug 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A168104 | CA |
| Hospitalist | 208M00000X | 19117 | NH |
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 - Nephrology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 356 |
|---|---|
| Services billed | 1,208 across 17 procedure codes |
| Paid by Medicare | $106,248 |
Part D prescriptions in 2024
| Prescriptions (claims) | 216 · 585 30-day fills |
|---|---|
| Patients | 77 |
| Total drug cost | $898,700 |
| Generic share | 86% of claims |
Education and affiliations
| Medical school | Creighton University School of Medicine |
|---|---|
| Graduation year | 2016 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- University of California San FranciscoSan Francisco, CA · 1,839 clinicians
- UCSF Medical Group Business ServicesSan Francisco, CA · 1,598 clinicians
- Regents of the University of CaliforniaSan Francisco, CA · 732 clinicians
Hospital affiliations
- Marinhealth Medical CenterGreenbrae, CA
- UCSF Medical CenterSan Francisco, CA
Industry payments (Open Payments)
- 2025$4,619 · 11 payments from 3 companies
- 2024$9,364 · 15 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Health Care Ag | $4,088 | 3 |
| Novo Nordisk Inc | $433.59 | 6 |
| Alnylam Pharmaceuticals Inc. | $98.34 | 2 |
What the 2025 payments were for
- Consulting Fee$4,088 · 3 payments
- Food and Beverage$531.93 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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