Karen Linnea Peterson, MD
NPI 1518970235ActiveIndividual· Otolaryngology· Pasadena, CA
Otolaryngology (MD) in Pasadena, California, trained at University of Iowa, Rj & L Carver College of Medicine (class of 1991). 360 Medicare patients in 2024, $76,874 paid; nearly all of their 238 Part D prescriptions were generic (99%). Medtronic, Inc. was the largest of 4 companies reporting payments in 2025, $539.99 in all, mostly food and beverage.
Overview
| NPI | 1518970235 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 14, 2006 |
| Last updated in NPPES | Dec 6, 2023 |
| Certified by provider | Dec 6, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | A53128 | CA |
| Otolaryngology | 207Y00000X | MD00036232 | WA |
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 - Otolaryngology (CA); Practitioner - Otolaryngology (IL); Practitioner - Otolaryngology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 360 |
|---|---|
| Services billed | 848 across 47 procedure codes |
| Paid by Medicare | $76,874 |
Part D prescriptions in 2024
| Prescriptions (claims) | 238 · 424 30-day fills |
|---|---|
| Patients | 108 |
| Total drug cost | $4,759 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Otolaryngology |
| Telehealth | Offers telehealth |
Medical group
- Cedars-Sinai Medical Care FoundationWest Hollywood, CA · 1,692 clinicians
Hospital affiliations
- Cedars-Sinai Medical CenterLos Angeles, CA
- Huntington HospitalPasadena, CA
Industry payments (Open Payments)
- 2025$539.99 · 5 payments from 4 companies
- 2024$371.77 · 5 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $154.57 | 1 |
| Inspire Medical Systems, Inc. | $141.08 | 2 |
| Baxter Healthcare | $125.00 | 1 |
| Axogen | $119.34 | 1 |
What the 2025 payments were for
- Food and Beverage$539.99 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 otolaryngologists in Pasadena · All otolaryngologists in California