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Rheumatology

Ozair M. Ziauddin, MD

Works at hospitals in Munster, IN · Crown Point, IN · Dyer, IN … · Indiana

Summary

Dr. Ozair M. Ziauddin, MD is a rheumatologist at 2001 US, Suite 41, Schererville, IN 46375. Phone: (219) 365-0970. Accepts Medicare assignment. In 2024, Ozair M. Ziauddin had 443 Original Medicare patients and 2,813 services. NPI 1518214949. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Ozair M. Ziauddin, 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 Ozair M. Ziauddin accept Medicare assignment?
Yes. Medicare's clinician data says Ozair M. Ziauddin 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 Ozair M. Ziauddin see?
In 2024, CMS data shows 443 Original Medicare patients and 2,813 services for Ozair M. Ziauddin. This counts Original Medicare only and measures volume, not quality.
What is Ozair M. Ziauddin's NPI number?
1518214949. 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 Ozair M. Ziauddin, 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 patients443
Services billed to Medicare2,813
Different services or procedures27
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)1,280 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)463 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)352 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)276 services
  5. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)212 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%
  • Arthritis75%
  • Osteoporosis38%
  • Ischemic heart disease29%
  • COPD28%

Hospitals where Ozair M. Ziauddin works

Medicare's Facility Affiliation Data lists Ozair M. Ziauddin 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 Ozair M. Ziauddin is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ozair M. Ziauddin as a member of this group (CMS data updated October 2, 2026).

  • Franciscan Physician Network1,170 clinicians in the group

Specialties

Find other Rheumatology doctors in Indiana →

Other rheumatologists in Indiana

Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.

All rheumatologists in Indiana →

Other clinicians in Franciscan Physician Network

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

Clinician information

CredentialMD
Graduation year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1518214949
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