Gustavo Calleros, MD
NPI 1346358827ActiveIndividual· Family Medicine· Pasadena, CA
Family Medicine (MD) in Pasadena, California, trained at University of California, Irvine, California College of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $872,438 for 11,679 claims, against $6,719 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 21 companies reporting payments in 2025, $2,845 in all, mostly food and beverage.
Overview
| NPI | 1346358827 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 26, 2006 |
| Last updated in NPPES | Dec 29, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | A74210 | CA |
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 - Family Practice (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 69 |
|---|---|
| Services billed | 164 across 17 procedure codes |
| Paid by Medicare | $6,719 |
Part D prescriptions in 2024
| Prescriptions (claims) | 11,679 · 25,362 30-day fills |
|---|---|
| Patients | 746 |
| Total drug cost | $872,438 |
| Generic share | 89% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Family Practice |
| Telehealth | Offers telehealth |
Medical group
- Modern Concepts Medical Group IncMontebello, CA · 9 clinicians
Hospital affiliation
- Adventist Health White MemorialLos Angeles, CA
Industry payments (Open Payments)
- 2025$2,845 · 89 payments from 21 companies
- 2024$2,476 · 92 payments from 24 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $395.06 | 4 |
| Lilly USA, LLC | $378.42 | 10 |
| Aimmune Therapeutics, Inc. | $371.79 | 3 |
| Novo Nordisk Inc | $354.53 | 12 |
| Astrazeneca Pharmaceuticals LP | $228.02 | 7 |
What the 2025 payments were for
- Food and Beverage$2,845 · 89 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 112 family medicine physicians in Pasadena · All family medicine physicians in California