Fernando A. Montelongo, M.D.
NPI 1245321165ActiveIndividual· Specialist· Orange, CA
Specialist (M.D.) in Orange, California, trained at University of California, Irvine, California College of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $149,285 for 3,574 claims, against $29,655 paid for services in 2024. Exact Sciences Corporation reported $82.50 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1245321165 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Sep 27, 2006 |
| Last updated in NPPES | Aug 4, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | G45460 | 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 | 74 |
|---|---|
| Services billed | 316 across 11 procedure codes |
| Paid by Medicare | $29,655 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,574 · 8,367 30-day fills |
|---|---|
| Patients | 245 |
| Total drug cost | $149,285 |
| Generic share | 93% of claims |
Education and affiliations
| Medical school | University of California, Irvine, California College of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Family Practice |
Other facilities
- Providence at Home With Compassus Home Health, Orange County SouthHome health agency · Irvine, CA
Industry payments (Open Payments)
- 2025$82.50 · 3 payments from 1 company
- 2024$331.70 · 6 payments from 5 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $82.50 | 3 |
What the 2025 payments were for
- Food and Beverage$82.50 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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