Meghan M. Closser

Medicare activity in 2024

Official CMS public-use data for Meghan M. Closser, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)63 services
2. Insertion of needle into vein for collection of blood sample (36415)32 services
3. Blood glucose (sugar) test performed by hand-held instrument (82962)25 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)13 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 cholesterol72%
• Arthritis39%
• Chronic kidney disease37%
• Ischemic heart disease33%
• Diabetes30%

Hospitals where Meghan M. Closser works

Medicare's Facility Affiliation Data lists Meghan M. Closser 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 Illinois Masonic Medical CenterChicago, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140182

Practice locations

Addresses where Meghan M. Closser is enrolled with Medicare (CMS data updated October 2, 2026).

• 1435 W Webster AveChicago, IL 60614 (630) 368‑1771
• 214 McHenry RdBuffalo Grove, IL 60089 (847) 459‑1160

Group practices

Medicare enrollment lists Meghan M. Closser as a member of this group (CMS data updated October 2, 2026).

• Advocate Health and Hospitals Corporation3,118 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Chicago

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

• Samantha Canning, MD
• Hannah F. Roth, MD
• Grace B. Lashore, MD
• Teresa N. Llorens, MD
• Yasmeen Golzar, MD
• Sonia Tanwar, MD
• Ruchi R. Trivedi, DO
• Katia P. Fernandez, MD

All internal medicine doctors in Chicago →

Other clinicians in Advocate Health and Hospitals Corporation

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

• Tristan M. Bugos, PT
• Neal Sawlani, MD
• Natalie P. Witek, MD
• Morgan Machado, PA
• Veda Ramesh, MD
• Frank Vlk, PT

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