Natalie S. Berger, MD

Medicare activity in 2024

Official CMS public-use data for Natalie S. Berger, 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 moderate level of decision making, if using time, 30 minutes or more (99214)157 services
2. Insertion of needle into vein for collection of blood sample (36415)131 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)117 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)31 services
5. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)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 cholesterol75%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
• High blood pressure74%
• Arthritis53%
• Diabetes40%
• Ischemic heart disease38%

Hospitals where Natalie S. Berger works

Medicare's Facility Affiliation Data lists Natalie S. Berger 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.

• Hudson Valley Hospital CenterCortlandt Manor, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330267
• New York-Presbyterian HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330101

Practice locations

Addresses where Natalie S. Berger is enrolled with Medicare (CMS data updated October 2, 2026).

• 1980 Crompond RdCortlandt Manor, NY 10567 (914) 737‑9000

Group practices

Medicare enrollment lists Natalie S. Berger as a member of this group (CMS data updated October 2, 2026).

• The Westchester Medical Practice PC196 clinicians in the group

Specialties

• Hematology/Oncologyprimary
• Internal Medicinealso
• Medical Oncologyalso

Find other Hematology/Oncology doctors in New York →

Other hematologist-oncologists in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

• Ronen Harel, DO
• Nakul Singhal, MD
• Amer Rafiaa, MD
• Valentina Moirangthem, MD
• Wahib Zafar, MD
• Crystal V. Antoine-Pepeljugoski, MD
• Jennifer A. Park, MD
• Krishna B. Ghimire, MD

All hematologist-oncologists in New York →

Other clinicians in The Westchester Medical Practice PC

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

• Nicole S. Belkin, MD
• Matthew Golkar, MD
• Samfee K. Doe, MD
• Suneetha Pattisapu, MD
• Taylor E. Prokopiak, PA
• Wei En Charlene Ng, NP

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