Quick answers
- Does Alexandra Krempa accept Medicare assignment?
- Yes. Medicare's clinician data says Alexandra Krempa 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 Alexandra Krempa see?
- In 2024, CMS data shows 311 Original Medicare patients and 804 services for Alexandra Krempa. This counts Original Medicare only and measures volume, not quality.
- What is Alexandra Krempa's NPI number?
- 1265597892. 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 Alexandra Krempa, 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 | 311 |
|---|---|
| Services billed to Medicare | 804 |
| Different services or procedures | 24 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)399 services
- Insertion of needle into vein for collection of blood sample (36415)199 services
- Physician review, interpretation, and patient management of home inr testing for patient with either mechanical heart valve(s), chronic atrial fibrillation, or venous thromboembolism who meets medicare coverage criteria; testing not occurring more frequent (G0250)52 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)41 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)35 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 pressure72%
- Arthritis50%
- Diabetes27%
- Ischemic heart disease27%
- Depression22%
Practice locations
Addresses where Alexandra Krempa is enrolled with Medicare (CMS data updated October 2, 2026).
- 15 N Broadway, Fl 2White Plains, NY 10601 (212) 305‑6936
- 161 Fort Washington AveNew York, NY 10032 (212) 305‑8559
- 40 Saw Mill River RdHawthorne, NY 10532 (914) 593‑8850
- 622 W 168th StNew York, NY 10032
- 700 White Plains RdScarsdale, NY 10583 (914) 787‑2242
Group practices
Medicare enrollment lists Alexandra Krempa as a member of this group (CMS data updated October 2, 2026).
- Trustees of Columbia University in the City of New York2,296 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in White Plains
Clinicians with the same Medicare primary specialty in White Plains, NY — not a recommendation.
Other clinicians in Trustees of Columbia University in the City of New York
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| School | Mercy College |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1265597892 |
| 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