Melissa D. Gennarelli, MD

Medicare activity in 2024

Official CMS public-use data for Melissa D. Gennarelli, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)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 cholesterol67%
• Diabetes52%

Hospitals where Melissa D. Gennarelli works

Medicare's Facility Affiliation Data lists Melissa D. Gennarelli 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.

• Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
• Westchester Medical CenterValhalla, NY · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 330234

Practice locations

Addresses where Melissa D. Gennarelli is enrolled with Medicare (CMS data updated October 2, 2026).

• 19 Bradhurst AveHawthorne, NY 10532
• 95 Grasslands RdValhalla, NY 10595 (914) 493‑6940

Group practices

Medicare enrollment lists Melissa D. Gennarelli as a member of this group (CMS data updated October 2, 2026).

• Westchester Medical Center Advanced Physician Services PC897 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Hawthorne

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

• Zahra Ahmed, MD
• Jason Goutis, MD
• Catalina E. Cincu, MD
• Maria F. Capparelli, MD
• Rebecca D. Glassman, MD
• Rachel M. Topp, MD
• Yuqing Wang, MD
• Gary I. Rogg, MD

All internal medicine doctors in Hawthorne →

Other clinicians in Westchester Medical Center Advanced Physician Services PC

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

• Pragya Ranjan, MD
• Martha C. Gamboa, MD
• Odise Cenaj, MD
• David E. Asprinio, MD
• Jennifer M. Jones, PA
• Wen-Hui Ou, 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