Brenda C. Marmol, MD

Medicare activity in 2024

Official CMS public-use data for Brenda C. Marmol, 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. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)162 services
2. Psychiatric diagnostic evaluation (90791)19 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%
• Anxiety75%
• Depression70%
• Arthritis52%
• Ischemic heart disease45%

Hospitals where Brenda C. Marmol works

Medicare's Facility Affiliation Data lists Brenda C. Marmol 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.

• Good Samaritan Hospital Medical CenterWest Islip, NY · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 330286
• St Catherine of Siena HospitalSmithtown, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330401

Practice locations

Addresses where Brenda C. Marmol is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 100 Port Washington BlvdRoslyn, NY 11576
• 1000 Montauk HwyWest Islip, NY 11795
• 1000 N Village AveRockville Center, NY 11570 (516) 705‑3428
• 200 Belle Terre RdPort Jefferson, NY 11777 (631) 474‑6000
• 4295 Hempstead TpkeBethpage, NY 11714 (516) 579‑6000

Group practices

Medicare enrollment lists Brenda C. Marmol as a member of these groups (CMS data updated October 2, 2026).

• Good Samaritan Hospital Medical Center165 clinicians in the group
• St Francis Hospital99 clinicians in the group
• St. Joseph Hospital99 clinicians in the group
• St Catherine of Siena Medical Center98 clinicians in the group
• Mercy Medical Center83 clinicians in the group
• St Charles Hospital Corp58 clinicians in the group

Specialties

• Psychiatryprimary

Find other Psychiatry doctors in New York →

Other psychiatrists in Roslyn

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

• Romeo S. Purugganan, MD
• Alisa K. Coleman, MD
• Stanley M. Hertz, MD
• Samuel P. Reinfeld, DO
• Arnold P. Levy, MD
• Jai Patel, MD
• Amir Garakani, MD

All psychiatrists in Roslyn →

Other clinicians in Good Samaritan Hospital Medical Center

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

• Fahtima Khwaja
• Romeo S. Purugganan, MD
• Tannya Viera, PA
• Vanessa Kleszczewski, PA
• Sara N. Resch
• Adam D. Schwartz, DO

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