Emily Guzman Hays
NPI 1932985314ActiveIndividual· Physician Assistant· Pomona, CA
Physician Assistant in Pomona, California, licensed in CA, with an NPI issued in September 2023. Their prescriptions cost Medicare Part D more than their services did: $8,850 for 749 claims, against $4,755 paid for services in 2024. Regeneron Healthcare Solutions, Inc. was the largest of 7 companies reporting payments in 2025, $697.75 in all, mostly food and beverage.
Overview
| NPI | 1932985314 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Sep 1, 2023 |
| Last updated in NPPES | Aug 20, 2024 |
| Certified by provider | Aug 20, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant Primary | 363A00000X | PA63286 | 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 - Physician Assistant (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 51 |
|---|---|
| Services billed | 52 across 4 procedure codes |
| Paid by Medicare | $4,755 |
Part D prescriptions in 2024
| Prescriptions (claims) | 749 · 796 30-day fills |
|---|---|
| Patients | 233 |
| Total drug cost | $8,850 |
| Generic share | 98% of claims |
Industry payments (Open Payments)
- 2025$697.75 · 31 payments from 7 companies
- 2024$136.67 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $260.42 | 10 |
| Genzyme Corporation | $154.49 | 13 |
| Stryker Corporation | $132.29 | 1 |
| Protega Pharmaceutials Inc | $52.23 | 2 |
| Optinose US, Inc. | $35.37 | 2 |
What the 2025 payments were for
- Food and Beverage$641.74 · 30 payments
- Education$56.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 205 physician assistants in Pomona · All physician assistants in California