Quick answers
- Does Rebecca B. Mahar accept Medicare assignment?
- Yes. Medicare's clinician data says Rebecca B. Mahar 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 Rebecca B. Mahar see?
- In 2024, CMS data shows 48 Original Medicare patients and 199 services for Rebecca B. Mahar. This counts Original Medicare only and measures volume, not quality.
- What is Rebecca B. Mahar's NPI number?
- 1548380132. 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 Rebecca B. Mahar, 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 | 48 |
|---|---|
| Services billed to Medicare | 199 |
| Different services or procedures | 4 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Therapy procedure reassessment for nutrition management, each 15 minutes (97803)127 services
- Therapy procedure for nutrition management, each 15 minutes (97802)44 services
- Diabetes outpatient self-management training services, individual, per 30 minutes (G0108)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%
- Diabetes75%
- Ischemic heart disease52%
- Chronic kidney disease46%
- Arthritis40%
Practice locations
Addresses where Rebecca B. Mahar is enrolled with Medicare (CMS data updated October 2, 2026).
- 3044 Rt 50, Saratoga Center for Endocrinology and DiabeSaratoga, NY 12866 (518) 886‑5800
- 665 Saratoga Rd, Suite 400Gansevoort, NY 12831 (518) 363‑8815
- 665 Saratoga Rd, Suite 400Wilton, NY 12831 (518) 587‑8400
Group practices
Medicare enrollment lists Rebecca B. Mahar as a member of this group (CMS data updated October 2, 2026).
- Saratoga Hospital356 clinicians in the group
Specialties
Find other clinicians: Registered Dietitian or Nutrition Professional, New York →
Other dietitians in New York
Clinicians with the same Medicare primary specialty in New York — not a recommendation.
Other clinicians in Saratoga Hospital
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 1995 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548380132 |
| 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