Quick answers
- Does Andrea L. Sacknoff accept Medicare assignment?
- Yes. Medicare's clinician data says Andrea L. Sacknoff 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 Andrea L. Sacknoff see?
- In 2024, CMS data shows 170 Original Medicare patients and 659 services for Andrea L. Sacknoff. This counts Original Medicare only and measures volume, not quality.
- What is Andrea L. Sacknoff's NPI number?
- 1215049390. 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 Andrea L. Sacknoff, 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 | 170 |
|---|---|
| Services billed to Medicare | 659 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)119 services
- Insertion of needle into vein for collection of blood sample (36415)78 services
- Blood test, comprehensive group of blood chemicals (80053)60 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)60 services
- Biopsy of large bowel using a flexible endoscope (45380)54 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 pressure64%
- Arthritis49%
- Diabetes22%
- Ischemic heart disease22%
- Anxiety22%
Practice locations
Addresses where Andrea L. Sacknoff is enrolled with Medicare (CMS data updated October 2, 2026).
- 575 Underhill BlvdSyosset, NY 11791 (516) 696‑2977
- 90 S Bedford RdMount Kisco, NY 10549 (914) 241‑1050
Group practices
Medicare enrollment lists Andrea L. Sacknoff as a member of this group (CMS data updated October 2, 2026).
- Optum Medical Care PC1,010 clinicians in the group
Specialties
- Gastroenterologyprimary
Other gastroenterologists in Syosset
Clinicians with the same Medicare primary specialty in Syosset, NY — not a recommendation.
Other clinicians in Optum Medical Care PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1988 (38 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1215049390 |
| 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