Maria S. Khan, MD

Medicare activity in 2024

Official CMS public-use data for Maria S. Khan, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,123 services
2. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)471 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)416 services
4. Dialysis services, per day, less than full month service (20 years or older) (90970)283 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)184 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%
• Chronic kidney disease75%
• Arthritis60%
• Diabetes56%
• Ischemic heart disease54%

Hospitals where Maria S. Khan works

Medicare's Facility Affiliation Data lists Maria S. Khan 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.

• Advocate Condell Medical CenterLibertyville, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140202
• Advocate Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140182
• Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140130
• Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
• Vista Medical Center EastWaukegan, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140084

Practice locations

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

• 1272 American WayLibertyville, IL 60048 (847) 549‑1632
• 15 Tower Ct, Suite 240Gurnee, IL 60031 (847) 432‑7222
• 215 S Aberdeen StChicago, IL 60607 (312) 733‑7335
• 565 Lakeview PkwyVernon Hills, IL 60061 (847) 916‑0592
• 755 S Milwaukee Ave, Suite 240Libertyville, IL 60048 (847) 549‑7222

Group practices

Medicare enrollment lists Maria S. Khan as a member of this group (CMS data updated October 2, 2026).

• Associates in Nephrology SC52 clinicians in the group

Specialties

• Nephrologyprimary

Find other Nephrology doctors in Illinois →

Other nephrologists in Libertyville

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

• George R. Hvostik, MD
• Jawad Munir, MD
• Omar Dalloul, MD

All nephrologists in Libertyville →

Other clinicians in Associates in Nephrology SC

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

• Megan Bailey
• Mark Leischner, MD
• Rizwan K. Moinuddin, DO
• Clark McClurkin, MD
• Sejal R. Patel, MD
• Nic Hristea, MD

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