Quick answers
- Does Erin M. Ambrose accept Medicare assignment?
- Yes. Medicare's clinician data says Erin M. Ambrose 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.
- How many Medicare patients does Erin M. Ambrose see?
- In 2024, CMS data shows 97 Original Medicare patients and 295 services for Erin M. Ambrose. This counts Original Medicare only and measures volume, not quality.
- What is Erin M. Ambrose's NPI number?
- 1366983652. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Erin M. Ambrose, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 97 |
|---|---|
| Services billed to Medicare | 295 |
| Different services or procedures | 6 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)153 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)85 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)25 services
- Hospital discharge day management, more than 30 minutes (99239)24 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Arthritis56%
- Diabetes54%
- Heart failure48%
- Chronic kidney disease46%
Hospitals where Erin M. Ambrose works
Medicare's Facility Affiliation Data lists Erin M. Ambrose 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.
- HCA Houston Healthcare SoutheastPasadena, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · CCN 450097
Practice locations
Addresses where Erin M. Ambrose is enrolled with Medicare (CMS data updated October 2, 2026).
- 11920 Astoria Blvd, Suite 110Houston, TX 77089 (281) 464‑8484
- 12141 Richmond AveHouston, TX 77082 (281) 558‑3444
- 150 E Medical Ctr Blvd, Suite DWebster, TX 77598 (281) 464‑8484
- 4000 Spencer HwyPasadena, TX 77504 (713) 359‑2000
- 7700 Floyd Curl DrSan Antonio, TX 78229 (210) 575‑4000
Group practices
Medicare enrollment lists Erin M. Ambrose as a member of these groups (CMS data updated October 2, 2026).
- Hospital Medicine Services of TX, PLLC378 clinicians in the group
- Aslam Loya MD PA8 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 Hospital Medicine Services of TX, PLLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1366983652 |
| 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
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- 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