Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Nicholas Stephen Iannazzo, DO

Individual provider Internal Medicine Physician · NPI 1043669633

Nicholas Stephen Iannazzo, DO is registered under Pulmonary Disease in Indianapolis, Indiana. Qualified in 2016, 10 years ago. Practices with Iu Health Medical Group, LLC, a 4,351-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
10
Licensed in
IN
In the registry since
2016
Specialties on file
4
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1701 N Senate Blvd
Indianapolis, IN 46202-1239
Phone: (317) 962-5820
Fax: (317) 962-3916
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 720 Eskenazi Ave, Indianapolis, IN 46202-5187 — (317) 880-7666
  • 1120 W Michigan St, Indianapolis, IN 46202-5209 — (317) 278-2686
  • 705 Riley Hospital Dr, Indianapolis, IN 46202-5109 — (317) 962-5820

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 02005669A (IN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 02005669A (IN)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 02005669A (IN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 11018796A (IN)

Record details

NPI number1043669633
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 6, 2016
Last updated in NPPESMarch 13, 2025
Certification dateMarch 13, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS), INTERNAL MEDICINE
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Iu Health Medical Group, Llc — 4351 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients141
Services billed 358 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $96 5 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Iu Health Medical Group, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 4351 clinicians in the practice; 12 are shown here.

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