Lynsey Louise Lakin, FNP-C
NPI 1861890030ActiveIndividual· Nurse Practitioner· Arcadia, CA
Nurse Practitioner (FNP-C) with Regents of the University of California and 1 other group, practicing in Arcadia, California. Their prescriptions cost Medicare Part D more than their services did: $4,884,881 for 1,860 claims, against $53,872 paid for services in 2024. Emd Serono, Inc. was the largest of 27 companies reporting payments in 2025, $210,155 in all, mostly speaking and faculty fees. Lists Casa Colina Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1861890030 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | FNP-C |
| Sole proprietor | Yes |
| NPI issued | Dec 19, 2014 |
| Last updated in NPPES | Nov 8, 2023 |
| Certified by provider | Nov 2, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Nurse Practitioner Primary | 363L00000X | 23845 | CA |
| Nurse Practitioner, Family | 363LF0000X | F0813038 | CO |
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 - Nurse Practitioner (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 181 |
|---|---|
| Services billed | 2,193 across 28 procedure codes |
| Paid by Medicare | $53,872 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,860 · 2,679 30-day fills |
|---|---|
| Patients | 179 |
| Total drug cost | $4,884,881 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Nurse Practitioner |
| Telehealth | Offers telehealth |
Medical groups
- Regents of the University of CaliforniaRiverside, CA · 35 clinicians
- West Coast Neurology, IncArcadia, CA · 15 clinicians
Hospital affiliations
- Casa Colina HospitalPomona, CA
- San Antonio Regional HospitalUpland, CA
Industry payments (Open Payments)
- 2025$210,155 · 486 payments from 27 companies
- 2024$154,404 · 421 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Emd Serono, Inc. | $116,487 | 131 |
| Genentech USA, Inc. | $18,239 | 52 |
| Biogen, Inc. | $13,494 | 44 |
| Ucb, Inc. | $13,338 | 55 |
| Tg Therapeutics, Inc. | $10,028 | 20 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$143,449 · 61 payments
- Travel and Lodging$37,487 · 115 payments
- Food and Beverage$11,393 · 296 payments
- Consulting Fee$10,370 · 9 payments
- Honoraria$4,956 · 4 payments
- Grant$2,500 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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