Quick answers
- Does Stella Marquardt accept Medicare assignment?
- Yes. Medicare's clinician data says Stella Marquardt 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 Stella Marquardt see?
- In 2024, CMS data shows 269 Original Medicare patients and 2,111 services for Stella Marquardt. This counts Original Medicare only and measures volume, not quality.
- What is Stella Marquardt's NPI number?
- 1083256416. 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 Stella Marquardt, 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 | 269 |
|---|---|
| Services billed to Medicare | 2,111 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,857 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)222 services
- Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes (99345)20 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%
- Arthritis71%
- Depression51%
- Diabetes48%
- Anxiety48%
Practice locations
Addresses where Stella Marquardt is enrolled with Medicare (CMS data updated October 2, 2026).
- 12777 Jones Rd, Suite 375aHouston, TX 77070 (832) 478‑1060
- 208 Bella Colinas DrAustin, TX 78738 (512) 840‑1158
- 2100 S Lakeline Blvd, Cedar Ridge Alzheimer'S Special CareCedar Park, TX 78613 (512) 298‑6762
- 4207 Burnet Rd, Suite 1320Austin, TX 78756 (512) 706‑1900
Group practices
Medicare enrollment lists Stella Marquardt as a member of these groups (CMS data updated October 2, 2026).
- Jason Martin Medical Consulting LLC53 clinicians in the group
- Aco Jason Martin Medical Consulting28 clinicians in the group
- Texas Palliative Services PA10 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 Jason Martin Medical Consulting LLC
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) | 1083256416 |
| 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
- 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