Phillip P. Santoiemma, MD

Medicare activity in 2024

Official CMS public-use data for Phillip P. Santoiemma, 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. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)114 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)101 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)74 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)45 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)37 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%
• Arthritis64%
• Ischemic heart disease56%
• Chronic kidney disease56%
• Heart failure49%

Hospitals where Phillip P. Santoiemma works

Medicare's Facility Affiliation Data lists Phillip P. Santoiemma 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 Memorial HospitalChicago, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140281
• Palos Community HospitalPalos Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140062

Practice locations

Addresses where Phillip P. Santoiemma is enrolled with Medicare (CMS data updated October 2, 2026).

• 676 N Saint Clair St, Suite 940Chicago, IL 60611 (312) 926‑8358

Group practices

Medicare enrollment lists Phillip P. Santoiemma as a member of this group (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group

Specialties

• Infectious Diseaseprimary
• Internal Medicinealso

Find other Infectious Disease doctors in Illinois →

Other infectious disease doctors in Chicago

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

• Kaylie Miller, MD
• Wahab Brobbey, MD
• Sunita Mohapatra, MD
• Ashley S. Laleker, MD
• Sarah Y. Won, MD
• Kelly E. Bachta
• Sahera Dirajlal Fargo, DO
• Beverly E. Sha, MD

All infectious disease doctors in Chicago →

Other clinicians in Northwestern Medical Faculty Foundation

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

• Joshua J. Ward, MD
• Jenny Jia, MD
• Marilyn G. Pearson, MD
• Drew A. Spencer, MD
• Matthew D. Henry, MD
• Alexis D. Jones, 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