Maria Gabriela Gregory, MD
NPI 1639148596ActiveIndividual· Psychiatry & Neurology, Neurology· Las Vegas, NV
Psychiatry & Neurology, Neurology (MD) in Las Vegas, Nevada, trained at University of California, Geffen School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $437,625 for 307 claims, against $63,795 paid for services in 2024. Alexion Pharmaceuticals, Inc. was the largest of 17 companies reporting payments in 2025, $1,564 in all, mostly food and beverage.
Overview
| NPI | 1639148596 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 14, 2006 |
| Last updated in NPPES | Mar 7, 2023 |
| Certified by provider | Jan 18, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 6444 | NV |
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 - Neurology (AZ); Practitioner - Neurology (CA); Practitioner - Neurology (MT); Practitioner - Neurology (NM); Practitioner - Neurology (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 186 |
|---|---|
| Services billed | 1,794 across 37 procedure codes |
| Paid by Medicare | $63,795 |
Part D prescriptions in 2024
| Prescriptions (claims) | 307 · 438 30-day fills |
|---|---|
| Patients | 73 |
| Total drug cost | $437,625 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of California, Geffen School of Medicine |
|---|---|
| Graduation year | 1988 |
| Medicare specialty | Neurology |
| Telehealth | Offers telehealth |
Medical groups
- Access Telecare PLLCMountain Brk, AL · 413 clinicians
- Access Telecare California PCSan Mateo, CA · 80 clinicians
Industry payments (Open Payments)
- 2025$1,564 · 51 payments from 17 companies
- 2024$1,382 · 39 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Alexion Pharmaceuticals, Inc. | $346.93 | 5 |
| Biogen, Inc. | $242.30 | 9 |
| Ucb, Inc. | $105.51 | 4 |
| E.R. Squibb & Sons, L.L.C. | $103.50 | 1 |
| Avadel Cns Pharmaceuticals, LLC | $92.91 | 4 |
What the 2025 payments were for
- Food and Beverage$1,389 · 50 payments
- Consulting Fee$175.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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