Gustavo A. Lopez, MD
NPI 1023247202ActiveIndividual· Family Medicine· Tolleson, AZ
Family Medicine (MD) with American Family Medicine LLC, practicing in Tolleson, Arizona. Their prescriptions cost Medicare Part D more than their services did: $1,548,427 for 11,398 claims, against $62,993 paid for services in 2024. Lilly USA, LLC was the largest of 11 companies reporting payments in 2025, $432.60 in all, mostly food and beverage.
Overview
| NPI | 1023247202 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2009 |
| Last updated in NPPES | Dec 26, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 42153 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 161 |
|---|---|
| Services billed | 1,409 across 41 procedure codes |
| Paid by Medicare | $62,993 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,398 · 26,018 30-day fills |
|---|---|
| Patients | 675 |
| Total drug cost | $1,548,427 |
| Generic share | 83% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- American Family Medicine LLCTolleson, AZ · 9 clinicians
Other facilities
- Advance Home Health Care, LLCHome health agency · Mesa, AZ
- American Home Health Services, Inc.Home health agency · Mesa, AZ
Industry payments (Open Payments)
- 2025$432.60 · 27 payments from 11 companies
- 2024$228.70 · 14 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $101.70 | 11 |
| Astellas Pharma US Inc | $63.25 | 2 |
| Dexcom, Inc. | $47.70 | 2 |
| Corcept Therapeutics | $47.68 | 3 |
| Abbott Laboratories | $47.01 | 2 |
What the 2025 payments were for
- Food and Beverage$432.60 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Family Medicine providers in Tolleson
- 1770348724
- 1699428235
- 1417069774