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Internal Medicine

Rosalia Porcelli, DO

Works at hospitals in Evanston, IL · Illinois

Summary

Dr. Rosalia Porcelli, DO is an internal medicine doctor at 1329 N Wolf Rd, Mount Prospect, IL 60056. Phone: (847) 803-3040. Accepts Medicare assignment. In 2024, Rosalia Porcelli had 406 Original Medicare patients and 540 services. NPI 1477529949. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1329 N Wolf Rd, Mount Prospect, IL 60056 · Directions (12 more locations)
  • Phone: (847) 803‑3040
  • Medicare: Accepts Medicare assignment
  • Hospital: Northshore University Healthsystem - Evanston Hospital
  • Group practice: Endeavor Health Medical Group
  • Medical school: Midwestern University, Chicago College Of Osteopathic Med · graduated 1995 (31 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Rosalia Porcelli, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Rosalia Porcelli accept Medicare assignment?
Yes. Medicare's clinician data says Rosalia Porcelli 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 Rosalia Porcelli see?
In 2024, CMS data shows 406 Original Medicare patients and 540 services for Rosalia Porcelli. This counts Original Medicare only and measures volume, not quality.
What is Rosalia Porcelli's NPI number?
1477529949. 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 Rosalia Porcelli, 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 patients406
Services billed to Medicare540
Different services or procedures22
Participating Medicare providerYes
Average age of these patients75

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)189 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)156 services
  3. Detection test by multiplex amplified probe technique for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (covid-19) and influenza virus types a and b (87636)35 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)27 services
  5. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)26 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 pressure63%
  • Arthritis55%
  • Diabetes25%
  • Ischemic heart disease24%
  • Anxiety23%

Hospitals where Rosalia Porcelli works

Medicare's Facility Affiliation Data lists Rosalia Porcelli 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.

Practice locations

Addresses where Rosalia Porcelli is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 13; the Medicare profile lists all.

Group practices

Medicare enrollment lists Rosalia Porcelli as a member of this group (CMS data updated October 2, 2026).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Internal Medicine doctors in Illinois →

Other internal medicine doctors in Mount Prospect

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

All internal medicine doctors in Mount Prospect →

Other clinicians in Endeavor Health Medical Group

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

Clinician information

CredentialDO
Medical schoolMidwestern University, Chicago College Of Osteopathic Med
Graduation year1995 (31 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477529949
CorrectionsReport 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

  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