Marco Antonio Lopez Vizcarra, M.D.
NPI 1467663963ActiveIndividual· Psychiatry & Neurology, Neurology· Mission Viejo, CA
Psychiatry & Neurology, Neurology (M.D.) with Healthcare Partners Affiliates Medical Group, practicing in Mission Viejo, California. Their prescriptions cost Medicare Part D more than their services did: $254,049 for 946 claims, against $15,146 paid for services in 2024. Eisai Inc. was the largest of 13 companies reporting payments in 2025, $1,252 in all, mostly food and beverage.
Overview
| NPI | 1467663963 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | May 25, 2007 |
| Last updated in NPPES | Mar 3, 2026 |
| Certified by provider | Mar 3, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | C134501 | CA |
| Psychiatry & Neurology, Neurology | 2084N0400X | 45748 | TN |
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 - Neurology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 60 |
|---|---|
| Services billed | 507 across 14 procedure codes |
| Paid by Medicare | $15,146 |
Part D prescriptions in 2024
| Prescriptions (claims) | 946 · 1,899 30-day fills |
|---|---|
| Patients | 289 |
| Total drug cost | $254,049 |
| Generic share | 94% of claims |
Education and affiliations
| Graduation year | 1993 |
|---|---|
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Healthcare Partners Affiliates Medical GroupAnaheim, CA · 754 clinicians
Industry payments (Open Payments)
- 2025$1,252 · 31 payments from 13 companies
- 2024$100.47 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Eisai Inc. | $224.86 | 6 |
| Lilly USA, LLC | $180.48 | 4 |
| Tg Therapeutics, Inc. | $143.42 | 1 |
| Pfizer Inc. | $124.99 | 1 |
| Neurocrine Biosciences, Inc. | $124.51 | 4 |
What the 2025 payments were for
- Food and Beverage$1,252 · 31 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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