Samir A. Haydar, DO

Medicare activity in 2024

Official CMS public-use data for Samir A. Haydar, 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. Emergency department visit with high level of medical decision making (99285)100 services
2. Critical care, first 30-74 minutes (99291)46 services
3. Emergency department visit with moderate level of medical decision making (99284)43 services
4. Ultrasound of heart, follow-up (93308)12 services
5. Emergency department visit with low level of medical decision making (99283)11 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%
• Arthritis46%
• Depression44%
• Anxiety44%
• Ischemic heart disease42%

Hospitals where Samir A. Haydar works

Medicare's Facility Affiliation Data lists Samir A. Haydar 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.

• MaineHealth Maine Medical CenterPortland, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200009
• St Mary's Regional Medical CenterLewiston, ME · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 200034

Practice locations

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

• 22 Bramhall StPortland, ME 04102
• 335 Brighton AvePortland, ME 04102 (207) 662‑8000
• 335 Brighton Ave, Suite BPortland, ME 04102 (207) 662‑8600
• 93 Campus AveLewiston, ME 04240 (207) 777‑8100

Group practices

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

• MaineHealth2,633 clinicians in the group
• St Marys Regional Medical Center198 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Maine →

Other emergency medicine doctors in Portland

Clinicians with the same Medicare primary specialty in Portland, ME — not a recommendation.

• Timothy S. Fallon, MD
• Katherine E. Stewart, MD
• Marc S. Hoffman, MD
• Jordan L. Gallo, MD
• Xiangyu Wang, MD
• Scott M. Russo, DO
• Randy M. Kring, MD
• Christine L. Hein, MD

All emergency medicine doctors in Portland →

Other clinicians in MaineHealth

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

• Jenna E. Ebert
• Wendy E. Smith, MD
• Eric Dinnerstein, MD
• Noah J. Hoffman
• Derek Lubetkin, MD
• Eve K. Hadley, CNM

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