Diego A. Diaz, MD

Medicare activity in 2024

Official CMS public-use data for Diego A. Diaz, 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. Test for allergy using allergenic extract (95004)20,699 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)583 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)393 services
4. Test to measure expiratory airflow and volume changes before and after medication administration (94060)205 services
5. Insertion of needle into vein for collection of blood sample (36415)178 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%
• Arthritis55%
• Diabetes45%
• Ischemic heart disease38%
• COPD27%

Hospitals where Diego A. Diaz works

Medicare's Facility Affiliation Data lists Diego A. Diaz 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.

• Hospital for Special SurgeryNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 330270
• Lenox Hill HospitalNew York, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330119
• Suny/Stony Brook University HospitalStony Brook, NY · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 330393

Practice locations

Addresses where Diego A. Diaz is enrolled with Medicare (CMS data updated October 2, 2026).

• 1041 3rd Ave, Suite 203New York, NY 10065 (212) 583‑2969
• 40 Ormond StDix Hills, NY 11746 (718) 224‑2141
• 651 A Coney Island AveBrooklyn, NY 11218 (718) 676‑6455

Group practices

Medicare enrollment lists Diego A. Diaz as a member of these groups (CMS data updated October 2, 2026).

• Diego a Diaz MD PC2 clinicians in the group
• Lifeline Medical Testing PLLC2 clinicians in the group

Specialties

• Sleep Medicineprimary
• Critical Care (Intensivists)also
• Internal Medicinealso

Find other Sleep Medicine doctors in New York →

Other sleep medicine doctors in New York

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

• Christine M. Ly, MD
• Thomas Tolbert, MD
• Jeanne B. Damian, MD
• Boris Sagalovich, MD
• Kammi Grayson, DO
• Rashmi Aurora, MD
• Mira Tadros, DO
• Jason Z. Bronstein, MD

All sleep medicine doctors in New York →

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