Maria Castro Calzada, PA-C
NPI 1508960824ActiveIndividual· Physician Assistant, Medical· Houston, TX
Physician Assistant, Medical (PA-C) with Metro Id Associates Ltd LLP, practicing in Houston, Texas. Medicare paid $10,702 for services to 11 patients in 2024. Cumberland Pharmaceuticals, Inc. was the largest of 10 companies reporting payments in 2025, $1,250 in all, mostly food and beverage. Lists Memorial Hermann Hospital System as a hospital affiliation.
Overview
| NPI | 1508960824 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | PA-C |
| Sole proprietor | No |
| NPI issued | Sep 8, 2006 |
| Last updated in NPPES | Jul 12, 2024 |
| Certified by provider | Jul 3, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Physician Assistant, Medical Primary | 363AM0700X | PA02798 | TX |
| Physician Assistant | 363A00000X | PA02798 | TX |
| Physician Assistant, Surgical | 363AS0400X | PA02798 | 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 | 11 |
|---|---|
| Services billed | 158 across 11 procedure codes |
| Paid by Medicare | $10,702 |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Physician Assistant |
Medical group
- Metro Id Associates Ltd LLPHouston, TX · 4 clinicians
Hospital affiliation
- Memorial Hermann Hospital SystemHouston, TX
Industry payments (Open Payments)
- 2025$1,250 · 61 payments from 10 companies
- 2024$145.12 · 8 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cumberland Pharmaceuticals, Inc. | $353.66 | 25 |
| Viiv Healthcare Company | $249.21 | 10 |
| Abbvie Inc. | $183.77 | 15 |
| Mimedx Group, Inc. | $125.78 | 1 |
| Esperion Therapeutics, Inc. | $101.81 | 1 |
What the 2025 payments were for
- Food and Beverage$1,250 · 61 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 272 physician assistants in Houston · All physician assistants in Texas