Jennifer L. Nichols, MD

Medicare activity in 2024

Official CMS public-use data for Jennifer L. Nichols, 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. Injection, onabotulinumtoxina, 1 unit (J0585)9,950 services
2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)462 services
3. 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)453 services
4. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)164 services
5. Needle measurement of electrical activity in muscle with injection of chemical for paralysis of nerve muscle (95874)47 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 pressure65%
• Arthritis51%
• Anxiety44%
• Depression36%
• Diabetes26%

Hospitals where Jennifer L. Nichols works

Medicare's Facility Affiliation Data lists Jennifer L. Nichols 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 Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
• Northwestern Medicine Delnor Community HospitalGeneva, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140211
• Northwestern Medicine Kishwaukee HospitalDekalb, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140286
• Northwestern Medicine McHenryMcHenry, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140116

Practice locations

Addresses where Jennifer L. Nichols is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 9; the Medicare profile lists all.

• 25 N Winfield RdWinfield, IL 60190
• 251 E HuronChicago, IL 60611
• 251 E Huron StChicago, IL 60611
• 2635 Church Rd, Suite 101Aurora, IL 60502 (630) 315‑6900
• 636 Raymond Dr, Suite 107Naperville, IL 60563 (630) 416‑2300

Group practices

Medicare enrollment lists Jennifer L. Nichols as a member of this group (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

• Neurologyprimary

Find other Neurology doctors in Illinois →

Other neurologists in Winfield

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

• Martha T. McGraw, MD
• Anjali Gera Gopal, MD
• Shailee S. Shah, MD
• Padmaja Gutti, MD
• Anjali R. Garg, MD
• Soumitri Barua, MD
• Padmaja Vittal, MD
• Dhruvil Pandya, MD

All neurologists in Winfield →

Other clinicians in Northwestern Medical Faculty Foundation

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

• Nikhil Y. Vajaria, DO
• Sarve-Naz Sarvian
• Mateen A. Dawood, MD
• Ewa Pastuszewska, CSW
• Rachael Tse
• Chloe C. Manzella, PA

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