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Family Practice

Nadeen Z. Sweis, MD

Works at hospitals in McHenry, IL · Illinois

Summary

Dr. Nadeen Z. Sweis, MD is a family doctor at 471 W Terra Cotta Ave, Crystal Lake, IL 60014. Phone: (609) 585-1122. Accepts Medicare assignment. NPI 1720469539. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 471 W Terra Cotta Ave, Crystal Lake, IL 60014 · Directions
  • Phone: (609) 585‑1122
  • Medicare: Accepts Medicare assignment
  • Hospital: Northwestern Medicine McHenry
  • Group practice: First Docs PC
  • Medical school: graduated 2014 (12 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Nadeen Z. Sweis, 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 Nadeen Z. Sweis accept Medicare assignment?
Yes. Medicare's clinician data says Nadeen Z. Sweis 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.
What is Nadeen Z. Sweis's NPI number?
1720469539. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Nadeen Z. Sweis works

Medicare's Facility Affiliation Data lists Nadeen Z. Sweis 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.

  • Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116

Practice locations

Addresses where Nadeen Z. Sweis is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • First Docs PC180 clinicians in the group

Specialties

Find other Family Practice doctors in Illinois →

Other family doctors in Crystal Lake

Clinicians with the same Medicare primary specialty in Crystal Lake, IL — not a recommendation.

All family doctors in Crystal Lake →

Other clinicians in First Docs PC

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

Clinician information

CredentialMD
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1720469539
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. 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. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians