Joanna Izquierdo May, PA
NPI 1588003495ActiveIndividual· Physician Assistant· Fairfax, VA
Physician Assistant (PA) in Fairfax, Virginia, trained at Wake Forest University School of Medicine (class of 2013). Their prescriptions cost Medicare Part D more than their services did: $229,098 for 511 claims, against $6,976 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $1,875 in all, mostly food and beverage.
Overview
| NPI | 1588003495 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA |
| Sole proprietor | No |
| NPI issued | Jun 25, 2013 |
| Last updated in NPPES | May 17, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | 0110006169 | VA |
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 - Physician Assistant (DC); Practitioner - Physician Assistant (NC); Practitioner - Physician Assistant (VA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 80 |
|---|---|
| Services billed | 105 across 10 procedure codes |
| Paid by Medicare | $6,976 |
Part D prescriptions in 2024
| Prescriptions (claims) | 511 · 1,155 30-day fills |
|---|---|
| Patients | 162 |
| Total drug cost | $229,098 |
| Generic share | 77% of claims |
Education and affiliations
| Medical school | Wake Forest University School of Medicine |
|---|---|
| Graduation year | 2013 |
| Medicare specialty | Physician Assistant |
| Telehealth | Offers telehealth |
Medical group
- Gastroenterology Associates of Northern Virginia, LLCAlexandria, VA · 100 clinicians
Industry payments (Open Payments)
- 2025$1,875 · 65 payments from 14 companies
- 2024$1,425 · 67 payments from 19 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $375.45 | 15 |
| Janssen Biotech, Inc. | $361.58 | 11 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $210.90 | 8 |
| Celltrion USA Inc. | $187.50 | 2 |
| Ardelyx, Inc. | $121.52 | 5 |
What the 2025 payments were for
- Food and Beverage$1,875 · 65 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 158 physician assistants in Fairfax · All physician assistants in Virginia