Marilyn Fabbri, MD

Medicare activity in 2024

Official CMS public-use data for Marilyn Fabbri, 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.

Most frequent services

1. Insertion of needle into vein for collection of blood sample (36415)172 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)165 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)149 services
4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)115 services
5. Blood test, comprehensive group of blood chemicals (80053)68 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%
• Arthritis66%
• Ischemic heart disease45%
• Diabetes44%
• Anxiety36%

Hospitals where Marilyn Fabbri works

Medicare's Facility Affiliation Data lists Marilyn Fabbri 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.

• Chsli St Joseph HospitalBethpage, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330332

Practice locations

Addresses where Marilyn Fabbri is enrolled with Medicare (CMS data updated October 2, 2026).

• 90 S Bedford RdMount Kisco, NY 10549 (914) 241‑1050

Group practices

Medicare enrollment lists Marilyn Fabbri as a member of this group (CMS data updated October 2, 2026).

• Optum Medical Care PC1,010 clinicians in the group

Specialties

• Infectious Diseaseprimary
• Internal Medicinealso

Find other Infectious Disease doctors in New York →

Other infectious disease doctors in Mount Kisco

Clinicians with the same Medicare primary specialty in Mount Kisco, NY — not a recommendation.

• John T. Raffalli, MD
• Nonso C. Osakwe, MD
• Neeta Chitkara, MD
• Carlo C. McCalla, MD

All infectious disease doctors in Mount Kisco →

Other clinicians in Optum Medical Care PC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Anastasia M. Eswar, MD
• Rene Talai
• Donato J. Perretta, MD
• Vicky Chen
• Adam D. Soyer, MD
• Eunha K. Shin, MD

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians