Quick answers
- Does Cynthia A. Castleman accept Medicare assignment?
- Yes. Medicare's clinician data says Cynthia A. Castleman accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Cynthia A. Castleman's NPI number?
- 1386250934. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Cynthia A. Castleman works
Medicare's Facility Affiliation Data lists Cynthia A. Castleman at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- AD Hospital EastHouston, TX · Acute Care Hospital · CCN 670102
Practice locations
Addresses where Cynthia A. Castleman is enrolled with Medicare (CMS data updated October 2, 2026).
- 4200 Twelve Oaks DrHouston, TX 77027 (713) 795‑4884
Group practices
Medicare enrollment lists Cynthia A. Castleman as a member of this group (CMS data updated October 2, 2026).
- Advanced Surgeons and Physicians Network Inc61 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in Advanced Surgeons and Physicians Network Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2019 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1386250934 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians