Peter J. Lennarson, MD
NPI 1013966001ActiveIndividual· Neurological Surgery· Aurora, CO
Neurological Surgery (MD) in Aurora, Colorado, trained at University of Wisconsin School of Medicine (class of 1995). Mostly services rather than prescriptions: Medicare paid $161,658 for 179 patients in 2024, with only 14 Part D claims. Solventum Corporation was the largest of 2 companies reporting payments in 2025, $41.71 in all, mostly food and beverage.
Overview
| NPI | 1013966001 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 8, 2006 |
| Last updated in NPPES | Apr 14, 2026 |
| Certified by provider | Apr 14, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Neurological Surgery Primary | 207T00000X | 52461 | CO |
| Neurological Surgery | 207T00000X | 23280 | NE |
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 - Neurosurgery (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 179 |
|---|---|
| Services billed | 463 across 87 procedure codes |
| Paid by Medicare | $161,658 |
Part D prescriptions in 2024
| Prescriptions (claims) | 14 · 22 30-day fills |
|---|---|
| Patients | 11 |
| Total drug cost | $765.67 |
| Generic share | 79% of claims |
Education and affiliations
| Medical school | University of Wisconsin School of Medicine |
|---|---|
| Graduation year | 1995 |
| Medicare specialty | Neurosurgery |
| Telehealth | Offers telehealth |
Medical group
- University Physicians IncorporatedAurora, CO · 3,215 clinicians
Hospital affiliations
- Longs Peak HospitalLongmont, CO
- University of Colorado Hospital AuthorityAurora, CO
Other facilities
- Berkley Home HealthHome health agency · Aurora, CO
Industry payments (Open Payments)
- 2025$41.71 · 2 payments from 2 companies
- 2024$955.20 · 10 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Solventum Corporation | $22.37 | 1 |
| Medtronic, Inc. | $19.34 | 1 |
What the 2025 payments were for
- Food and Beverage$41.71 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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