Maria Brountzas, MD

Medicare activity in 2024

Official CMS public-use data for Maria Brountzas, 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)860 services
2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)519 services
3. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)294 services
4. Insertion of needle into vein for collection of blood sample (36415)283 services
5. Administration of influenza virus vaccine (G0008)150 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%
• Arthritis46%
• Osteoporosis30%
• Ischemic heart disease29%
• Anxiety21%

Hospitals where Maria Brountzas works

Medicare's Facility Affiliation Data lists Maria Brountzas 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.

• Mercy Medical CenterRockville Centre, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330259
• North Shore University HospitalManhasset, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330106
• St Charles HospitalPort Jefferson, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330246
• St Francis Hospital - The Heart CenterRoslyn, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330182

Practice locations

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

• 146 A Manetto Hill Rd, Suite 205Plainview, NY 11803 (516) 302‑8530

Group practices

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

• CHS Physician Partners PC743 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in New York →

Other internal medicine doctors in Plainview

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

• Reinaldo M. Gutierrez, MD
• Florence Barricelli, MD
• Irene Lainiotis, MD
• Jane F. Serio, MD
• Skye C. Felice, DO
• Jackie P. Orfanos, MD
• Prem L. Sagar, MD
• Yuting Ye, MD

All internal medicine doctors in Plainview →

Other clinicians in CHS Physician Partners PC

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

• Xiao Li Ren, MD
• Amrita Srivastava, MD
• Billal A. Tokhi, MD
• Ailia Rizvi, DO
• Michael Castellano, MD
• Lawrence H. Durban, 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