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Obstetrics/Gynecology

James S. Nitti, MD

Works at hospitals in Elmhurst, IL · Illinois

Summary

Dr. James S. Nitti, MD is an OB-GYN at 1200 S York Rd, Suite 1120, Elmhurst, IL 60126. Phone: (630) 527-3200. Accepts Medicare assignment. In 2024, James S. Nitti had 24 Original Medicare patients and 43 services. NPI 1194106872. 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: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 1200 S York Rd, Suite 1120, Elmhurst, IL 60126 · Directions (5 more locations)
  • Phone: (630) 527‑3200
  • Medicare: Accepts Medicare assignment
  • Hospital: Elmhurst Memorial Hospital
  • Group practice: Endeavor Health Medical Group
  • Medical school: graduated 2015 (11 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about James S. Nitti, 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 James S. Nitti accept Medicare assignment?
Yes. Medicare's clinician data says James S. Nitti 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 James S. Nitti see?
In 2024, CMS data shows 24 Original Medicare patients and 43 services for James S. Nitti. This counts Original Medicare only and measures volume, not quality.
What is James S. Nitti's NPI number?
1194106872. 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 James S. Nitti, 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 patients24
Services billed to Medicare43
Different services or procedures16
Participating Medicare providerYes
Average age of these patients69

Most frequent services

  1. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)12 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 pressure67%
  • Arthritis63%

Hospitals where James S. Nitti works

Medicare's Facility Affiliation Data lists James S. Nitti 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.

  • Elmhurst Memorial HospitalElmhurst, IL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 140200

Practice locations

Addresses where James S. Nitti is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists James S. Nitti as a member of this group (CMS data updated October 2, 2026).

  • Endeavor Health Medical Group3,350 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in Illinois →

Other OB-GYNs in Elmhurst

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

All OB-GYNs in Elmhurst →

Other clinicians in Endeavor Health Medical Group

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

Clinician information

CredentialMD
Graduation year2015 (11 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1194106872
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