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Psychiatry

Mahmoud Y. Dweik, MD

Sees patients in Branford, CT · New York, NY · Brooklyn, NY · Connecticut, New York

Summary

Dr. Mahmoud Y. Dweik, MD is a psychiatrist at 14 Sycamore Way, Branford, CT 06405. Phone: (203) 483-2630. Accepts Medicare assignment. In 2024, Mahmoud Y. Dweik had 49 Original Medicare patients and 98 services. NPI 1285193235. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 14 Sycamore Way, Branford, CT 06405 · Directions (2 more locations)
  • Phone: (203) 483‑2630
  • Medicare: Accepts Medicare assignment
  • Group practice: Icahn School of Medicine at Mount Sinai (+2 more)
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Mahmoud Y. Dweik, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Mahmoud Y. Dweik accept Medicare assignment?
Yes. Medicare's clinician data says Mahmoud Y. Dweik accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Mahmoud Y. Dweik see?
In 2024, CMS data shows 49 Original Medicare patients and 98 services for Mahmoud Y. Dweik. This counts Original Medicare only and measures volume, not quality.
What is Mahmoud Y. Dweik's NPI number?
1285193235. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Mahmoud Y. Dweik, 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.

Original Medicare patients49
Services billed to Medicare98
Different services or procedures7
Participating Medicare providerYes
Average age of these patients56

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)34 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)17 services
  3. Psychiatric diagnostic evaluation with medical services (90792)15 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).

  • Anxiety71%
  • High blood pressure67%
  • High cholesterol61%
  • Depression51%
  • Diabetes43%
  • Arthritis39%

Practice locations

Addresses where Mahmoud Y. Dweik is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Mahmoud Y. Dweik as a member of these groups (CMS data updated October 2, 2026).

  • Icahn School of Medicine at Mount Sinai2,843 clinicians in the group
  • Kings Physician Services PC648 clinicians in the group
  • Bhcare, Inc.34 clinicians in the group

Specialties

Find other Psychiatry doctors in Connecticut →

Other psychiatrists in Connecticut

Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.

All psychiatrists in Connecticut →

Other clinicians in Icahn School of Medicine at Mount Sinai

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

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1285193235
CorrectionsReport an error or suggest an update →

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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians