Maria Mazzeo, MD

Medicare activity in 2024

Official CMS public-use data for Maria Mazzeo, 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. Anesthesia for procedure to assess heart electrical activity (00537)19 services
2. Anesthesia for x-ray or radiation therapy (01922)13 services
3. Insertion of artery tube for blood sampling or infusion through skin (36620)12 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%
• Arthritis64%
• Atrial fibrillation54%
• Ischemic heart disease47%
• Heart failure39%

Hospitals where Maria Mazzeo works

Medicare's Facility Affiliation Data lists Maria Mazzeo 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.

• Stamford HospitalStamford, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070006

Practice locations

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

• 1 Hospital PlzStamford, CT 06902 (203) 276‑1000
• 32 Strawberry Hill CtStamford, CT 06902 (203) 276‑2000
• 4 Hospital PlzStamford, CT 06902 (203) 276‑1000

Group practices

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

• Stamford Anesthesiology Services PC51 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in Connecticut →

Other anesthesiologists in Stamford

Clinicians with the same Medicare primary specialty in Stamford, CT — not a recommendation.

• Kristy M. Labib, MD
• Andrew P. Sosa, MD
• Jacob M. Aftel
• Safwat Choudhury, MD
• Betty Ann Robustelli, MD
• Christian Tilley, MD
• Eric J. Cheng, MD
• Mikhail Goman, MD

All anesthesiologists in Stamford →

Other clinicians in Stamford Anesthesiology Services PC

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

• Tyler Sheehan, CNA
• Kristy M. Labib, MD
• Andrew P. Sosa, MD
• Shahid Rafiq, MD
• Robert Sickeler, MD
• Steven L. Belmont, CNA

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