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Rheumatology

Iris Y. Navarro-Millan, MD

Works at hospitals in New York, NY · New York

Summary

Dr. Iris Y. Navarro-Millan, MD is a rheumatologist at 535 E 70th St, New York, NY 10021. Phone: (212) 774-7598. Accepts Medicare assignment. In 2024, Iris Y. Navarro-Millan had 19 Original Medicare patients and 36 services. NPI 1770737967. 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: Rheumatologist (Medicare lists Rheumatology)
  • Address: 535 E 70th St, New York, NY 10021 · Directions
  • Phone: (212) 774‑7598
  • Medicare: Accepts Medicare assignment
  • Hospital: Hospital for Special Surgery
  • Group practice: New York Society for the Relief of Ruptured and Crippled Maintaining
  • Medical school: graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Iris Y. Navarro-Millan, 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 Iris Y. Navarro-Millan accept Medicare assignment?
Yes. Medicare's clinician data says Iris Y. Navarro-Millan 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 Iris Y. Navarro-Millan see?
In 2024, CMS data shows 19 Original Medicare patients and 36 services for Iris Y. Navarro-Millan. This counts Original Medicare only and measures volume, not quality.
What is Iris Y. Navarro-Millan's NPI number?
1770737967. 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 Iris Y. Navarro-Millan, 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 patients19
Services billed to Medicare36
Different services or procedures7
Participating Medicare providerYes
Average age of these patients71

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%
  • Arthritis75%

Hospitals where Iris Y. Navarro-Millan works

Medicare's Facility Affiliation Data lists Iris Y. Navarro-Millan 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 Iris Y. Navarro-Millan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Iris Y. Navarro-Millan as a member of this group (CMS data updated October 2, 2026).

  • New York Society for the Relief of Ruptured and Crippled Maintaining116 clinicians in the group

Specialties

Find other Rheumatology doctors in New York →

Other rheumatologists in New York

Clinicians with the same Medicare primary specialty in New York, NY — not a recommendation.

All rheumatologists in New York →

Other clinicians in New York Society for the Relief of Ruptured and Crippled Maintaining

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1770737967
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