Anna Lisa Guzman, P.A.-C
NPI 1538381512ActiveIndividual· Physician Assistant, Medical· McAllen, TX
Physician Assistant, Medical (P.A.-C) with Palm Valley Medical Clinic PA, practicing in McAllen, Texas. Their prescriptions cost Medicare Part D more than their services did: $1,353,538 for 7,942 claims, against $34,584 paid for services in 2024. Dexcom, Inc. was the largest of 20 companies reporting payments in 2025, $1,453 in all, mostly food and beverage. Lists Rio Grande Regional Hospital as a hospital affiliation.
Overview
| NPI | 1538381512 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | P.A.-C |
| Sole proprietor | No |
| NPI issued | May 2, 2007 |
| Last updated in NPPES | Mar 24, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA03494 | TX |
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 (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 183 |
|---|---|
| Services billed | 697 across 39 procedure codes |
| Paid by Medicare | $34,584 |
Part D prescriptions in 2024
| Prescriptions (claims) | 7,942 · 18,909 30-day fills |
|---|---|
| Patients | 774 |
| Total drug cost | $1,353,538 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Palm Valley Medical Clinic PAMcAllen, TX · 2 clinicians
Hospital affiliation
- Rio Grande Regional HospitalMcAllen, TX
Industry payments (Open Payments)
- 2025$1,453 · 64 payments from 20 companies
- 2024$1,456 · 98 payments from 22 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Dexcom, Inc. | $191.77 | 2 |
| Corcept Therapeutics | $190.38 | 9 |
| Abbott Laboratories | $161.94 | 7 |
| Boston Scientific Corporation | $136.57 | 2 |
| Lilly USA, LLC | $99.65 | 5 |
What the 2025 payments were for
- Food and Beverage$1,453 · 64 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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