Melissa A. Martinez Mateo, MD

Medicare activity in 2024

Official CMS public-use data for Melissa A. Martinez Mateo, 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)192 services
2. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)84 services
3. Biopsy of large bowel using a flexible endoscope (45380)36 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)34 services
5. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)33 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%
• Arthritis59%
• Ischemic heart disease53%
• Anxiety47%
• Heart failure47%

Hospitals where Melissa A. Martinez Mateo works

Medicare's Facility Affiliation Data lists Melissa A. Martinez Mateo 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.

• Carle Foundation HospitalUrbana, IL · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 140091
• 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 Melissa A. Martinez Mateo is enrolled with Medicare (CMS data updated October 2, 2026).

• 15300 W Ave, Suite 210Orland Park, IL 60462 (708) 226‑2870
• 611 W Park StUrbana, IL 61801 (888) 712‑2753

Group practices

Medicare enrollment lists Melissa A. Martinez Mateo as a member of these groups (CMS data updated October 2, 2026).

• Northwestern Medical Faculty Foundation4,503 clinicians in the group
• Carle Health Care Incorporated1,666 clinicians in the group

Specialties

• Gastroenterologyprimary

Find other Gastroenterology doctors in Illinois →

Other gastroenterologists in Orland Park

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

• Rick Chadha, MD
• William Kosmala, MD
• Jatinder Goyal, MD
• Sushila R. Dalal, MD
• Brian J. Blumenstein, MD
• Wayne C. Lue, MD
• Samir A. Patel, MD
• Sonia S. Kupfer, MD

All gastroenterologists in Orland Park →

Other clinicians in Northwestern Medical Faculty Foundation

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

• Mark S. Suthoff
• Andres Duarte, MD
• Lauren E. Skalitzky
• Kantilal Chandarana, MD
• Sharda Thakral, MD
• Kenneth P. Harang, 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