Stacey Rene Zavala, MD
NPI 1144433673ActiveIndividual· Internal Medicine, Gastroenterology· Marlton, NJ
Internal Medicine, Gastroenterology (MD) with Advocare, LLC, practicing in Marlton, New Jersey. Their prescriptions cost Medicare Part D more than their services did: $514,954 for 1,563 claims, against $83,781 paid for services in 2024. Pfizer Inc. was the largest of 11 companies reporting payments in 2025, $629.81 in all, mostly food and beverage. Lists Aspen Valley Hospital District and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1144433673 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 8, 2007 |
| Last updated in NPPES | Feb 5, 2024 |
| Certified by provider | Feb 5, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 25MA10777100 | NJ |
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 - Gastroenterology (NJ); Practitioner - Gastroenterology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 405 |
|---|---|
| Services billed | 866 across 20 procedure codes |
| Paid by Medicare | $83,781 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,563 · 3,345 30-day fills |
|---|---|
| Patients | 408 |
| Total drug cost | $514,954 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical group
- Advocare, LLCHaddonfield, NJ · 386 clinicians
Hospital affiliations
- Aspen Valley Hospital DistrictAspen, CO
- Cooper University HospitalCamden, NJ
- Virtua Mount Holly HospitalMount Holly, NJ
- Virtua Our Lady of Lourdes HospitalCamden, NJ
- West Jersey HospitalVoorhees, NJ
Industry payments (Open Payments)
- 2025$629.81 · 43 payments from 11 companies
- 2024$1,166 · 82 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Pfizer Inc. | $196.14 | 17 |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | $97.98 | 6 |
| Ardelyx, Inc. | $59.87 | 3 |
| Phathom Pharmaceuticals, Inc. | $46.01 | 4 |
| Madrigal Pharmaceuticals | $37.17 | 2 |
What the 2025 payments were for
- Food and Beverage$629.81 · 43 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 21 gastroenterologists in Marlton · All gastroenterologists in New Jersey