Quick answers
- Does Antoun M. Nader accept Medicare assignment?
- Yes. Medicare's clinician data says Antoun M. Nader 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 Antoun M. Nader see?
- In 2024, CMS data shows 275 Original Medicare patients and 1,213 services for Antoun M. Nader. This counts Original Medicare only and measures volume, not quality.
- What is Antoun M. Nader's NPI number?
- 1043240054. 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 Antoun M. Nader, 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 patients | 275 |
|---|---|
| Services billed to Medicare | 1,213 |
| Different services or procedures | 69 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Ultrasonic guidance for needle placement (76942)221 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)214 services
- Injection of anesthetic agent and/or steroid into other nerve or branch (64450)112 services
- Injection of anesthetic agent and/or steroid into upper neck and back of head nerve (64405)94 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)76 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 pressure70%
- Arthritis66%
- Ischemic heart disease39%
- Anxiety37%
- Depression33%
Hospitals where Antoun M. Nader works
Medicare's Facility Affiliation Data lists Antoun M. Nader 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 Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281
- Presence Saint Joseph Hospital - ChicagoChicago, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140224
Practice locations
Addresses where Antoun M. Nader is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 250 E Superior, 2304 Nwmff Prent Wmn HospChicago, IL 60611 (312) 472‑3660
- 250 E Superior StChicago, IL 60611
- 251 E HuronChicago, IL 60611
- 251 E Huron StChicago, IL 60611
- 259 E Erie StChicago, IL 60611 (312) 503‑1944
Group practices
Medicare enrollment lists Antoun M. Nader as a member of this group (CMS data updated October 2, 2026).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Anesthesiologyprimary
- Pain Managementalso
Other anesthesiologists in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Other clinicians in Northwestern Medical Faculty Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1990 (36 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043240054 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians