Maren Liv Pedersen, MD
NPI 1417021163ActiveIndividual· Internal Medicine· Palo Alto, CA
Internal Medicine (MD) in Palo Alto, California, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $165,725 for 1,524 claims, against $49,818 paid for services in 2024. Pfizer Inc. was the largest of 2 companies reporting payments in 2025, $134.88 in all, mostly food and beverage.
Overview
| NPI | 1417021163 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 17, 2006 |
| Last updated in NPPES | Mar 27, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | G43586 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 130 |
|---|---|
| Services billed | 495 across 25 procedure codes |
| Paid by Medicare | $49,818 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,524 · 3,388 30-day fills |
|---|---|
| Patients | 147 |
| Total drug cost | $165,725 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Loyola University of Chicago, Stritch School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Peninsula Medical CenterBurlingame, CA
- Stanford Health CareStanford, CA
Industry payments (Open Payments)
- 2025$134.88 · 2 payments from 2 companies
- 2024$42.55 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $107.85 | 1 |
| Lilly USA, LLC | $27.03 | 1 |
What the 2025 payments were for
- Food and Beverage$134.88 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 196 internal medicine physicians in Palo Alto · All internal medicine physicians in California