Quick answers
- Does Karen L. Stierman accept Medicare assignment?
- Yes. Medicare's clinician data says Karen L. Stierman 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 Karen L. Stierman see?
- In 2024, CMS data shows 445 Original Medicare patients and 3,940 services for Karen L. Stierman. This counts Original Medicare only and measures volume, not quality.
- What is Karen L. Stierman's NPI number?
- 1972500072. 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 Karen L. Stierman, 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 | 445 |
|---|---|
| Services billed to Medicare | 3,940 |
| Different services or procedures | 67 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Test for allergy using allergenic extract (95004)670 services
- Test for allergy using allergenic extract injected into skin (95024)589 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)589 services
- Diagnostic exam of nasal passages using an endoscope (31231)204 services
- Removal of impacted ear wax (69210)153 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 cholesterol75%
- High blood pressure62%
- Arthritis42%
- Ischemic heart disease33%
- Anxiety20%
- Osteoporosis19%
Hospitals where Karen L. Stierman works
Medicare's Facility Affiliation Data lists Karen L. Stierman 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.
- St David's Medical CenterAustin, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450431
Practice locations
Addresses where Karen L. Stierman is enrolled with Medicare (CMS data updated October 2, 2026).
- 1730 E Whitestone Blvd, Suite 100Cedar Park, TX 78613 (512) 328‑7722
- 2765 Bee Caves Rd, Suite 205Austin, TX 78746 (512) 328‑7722
Group practices
Medicare enrollment lists Karen L. Stierman as a member of this group (CMS data updated October 2, 2026).
- Karen L Stierman, MD PA4 clinicians in the group
Specialties
- Otolaryngologyprimary
Other ENT doctors in Cedar Park
Clinicians with the same Medicare primary specialty in Cedar Park, TX — not a recommendation.
Other clinicians in Karen L Stierman, MD PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Texas Medical Branch At Galveston |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972500072 |
| 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