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Internal Medicine

Syed Z. Hussain, MD

Sees patients in Shelton, CT · Stratford, CT · Monroe, CT … · Connecticut

Summary

Dr. Syed Z. Hussain, MD is an internal medicine doctor at 15 Armstrong Rd, Shelton, CT 06484. Phone: (203) 929-1109. Accepts Medicare assignment. In 2024, Syed Z. Hussain had 198 Original Medicare patients and 393 services. NPI 1144258377. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 15 Armstrong Rd, Shelton, CT 06484 · Directions (5 more locations)
  • Phone: (203) 929‑1109
  • Medicare: Accepts Medicare assignment
  • Group practice: St. Vincents Urgent Care LLC
  • Medical school: graduated 1988 (38 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Syed Z. Hussain, 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 Syed Z. Hussain accept Medicare assignment?
Yes. Medicare's clinician data says Syed Z. Hussain 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 Syed Z. Hussain see?
In 2024, CMS data shows 198 Original Medicare patients and 393 services for Syed Z. Hussain. This counts Original Medicare only and measures volume, not quality.
What is Syed Z. Hussain's NPI number?
1144258377. 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 Syed Z. Hussain, 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 patients198
Services billed to Medicare393
Different services or procedures31
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)115 services
  2. Detection test by immunoassay with direct visual observation for severe acute respiratory syndrome coronavirus 2 (covid-19) (87811)54 services
  3. Detection test by immunoassay with direct visual observation for streptococcus, group a (strep) (87880)38 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)36 services
  5. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)30 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 cholesterol75%
  • High blood pressure67%
  • Arthritis48%
  • Ischemic heart disease25%
  • Anxiety22%
  • Osteoporosis20%

Practice locations

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

Group practices

Medicare enrollment lists Syed Z. Hussain as a member of this group (CMS data updated October 2, 2026).

  • St. Vincents Urgent Care LLC42 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Shelton

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

All internal medicine doctors in Shelton →

Other clinicians in St. Vincents Urgent Care LLC

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

Clinician information

CredentialMD
Graduation year1988 (38 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1144258377
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