Austin S. Nielsen, MD

Medicare activity in 2024

Official CMS public-use data for Austin S. Nielsen, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)294 services
2. Insertion of needle into vein for collection of blood sample (36415)82 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)72 services
4. Administration of influenza virus vaccine (G0008)50 services
5. Influenza vaccine split virus, preservative free (90662)49 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 cholesterol74%
• Arthritis37%
• Diabetes33%
• Anxiety28%
• Depression27%

Hospitals where Austin S. Nielsen works

Medicare's Facility Affiliation Data lists Austin S. Nielsen 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.

• Indiana University Health Bloomington HospitalBloomington, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150051

Practice locations

Addresses where Austin S. Nielsen is enrolled with Medicare (CMS data updated October 2, 2026).

• 1701 N Senate BlvdIndianapolis, IN 46202 (888) 484‑3258
• 5921 W State Rd, 46 Elletsville Family PracticeBloomington, IN 47404 (888) 484‑3258

Group practices

Medicare enrollment lists Austin S. Nielsen as a member of these groups (CMS data updated October 2, 2026).

• IU Health Medical Group LLC4,462 clinicians in the group
• Indiana University Health Southern Indiana Physicians LLC463 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in Indiana →

Other family doctors in Indianapolis

Clinicians with the same Medicare primary specialty in Indianapolis, IN — not a recommendation.

• Carol L. Dellinger, MD
• Nicholas J. Volz, DO
• Deborah J. Demaree, DO
• Shelley R. Stiner, DO
• Gary A. Wright, MD
• James W. Malenkos, MD
• Melanie A. Schreiner, MD
• Bailey Crouch, DO

All family doctors in Indianapolis →

Other clinicians in IU Health Medical Group LLC

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

• Nicole P. Myers, NP
• Carol L. Dellinger, MD
• Rina Yadav, DO
• Cassandra C. Porter, PA
• Trisha L. Nagel, NP
• Sarah E. Norris, DO

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