Quick answers
- Does Alice L. O Brien accept Medicare assignment?
- Yes. Medicare's clinician data says Alice L. O Brien 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 Alice L. O Brien's NPI number?
- 1700073509. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alice L. O Brien works
Medicare's Facility Affiliation Data lists Alice L. O Brien at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Memorial Hermann - Texas Medical CenterHouston, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · CCN 450068
Practice locations
Addresses where Alice L. O Brien is enrolled with Medicare (CMS data updated October 2, 2026).
- 5656 Kelley StHouston, TX 77026 (713) 566‑5000
- 6411 Fannin StHouston, TX 77030 (713) 704‑4000
Group practices
Medicare enrollment lists Alice L. O Brien as a member of this group (CMS data updated October 2, 2026).
- UT Physicians1,765 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Houston
Clinicians with the same Medicare primary specialty in Houston, TX — not a recommendation.
Other clinicians in UT Physicians
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Baylor College Of Medicine |
| Graduation year | 2003 (23 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700073509 |
| 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
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 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