Luz Castellanos, MD
NPI 1699161281ActiveIndividual· Pediatrics, Pediatric Endocrinology· Houston, TX
Pediatrics, Pediatric Endocrinology (MD) with Physicians Referral Service, practicing in Houston, Texas. Mostly services rather than prescriptions: Medicare paid $16,657 for 129 patients in 2024, with only 12 Part D claims. Ascendis Pharma Endocrinology Inc was the largest of 2 companies reporting payments in 2025, $273.77 in all, mostly food and beverage.
Overview
| NPI | 1699161281 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 9, 2015 |
| Last updated in NPPES | Aug 29, 2023 |
| Certified by provider | Aug 29, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pediatrics, Pediatric Endocrinology Primary | 2080P0205X | U4164 | 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 - Pediatric Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 129 |
|---|---|
| Services billed | 149 across 8 procedure codes |
| Paid by Medicare | $16,657 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12 · 25 30-day fills |
|---|---|
| Total drug cost | $1,156 |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Pediatric Medicine |
Medical group
- Physicians Referral ServiceHouston, TX · 2,765 clinicians
Industry payments (Open Payments)
- 2025$273.77 · 2 payments from 2 companies
- 2024$281.95 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Ascendis Pharma Endocrinology Inc | $142.21 | 1 |
| Beta Bionics, Inc. | $131.56 | 1 |
What the 2025 payments were for
- Food and Beverage$273.77 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 58 Pediatrics, Pediatric Endocrinology providers in Houston · All Pediatrics, Pediatric Endocrinology providers in Texas