Arthritis, RheumatoidAzathioprineIdiopathic Pulmonary Fibrosis
Dr. Nicholas Stephen Iannazzo, DO
NPI1043669633PAC ID8426349283
- Medicare services, 2024
- 224
- Medicare patients, 2024
- 141
- Part D claims, 2024
- 389
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 1701 N Senate Blvd, Indianapolis, IN 46202
- Practice phone
- Call (317) 962-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Iannazzo's professional email, personal email and mobile number
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Dr. Nicholas Stephen Iannazzo is a pulmonologist in Indianapolis, Indiana
Dr. Iannazzo practices at IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health.
Dr. Iannazzo's NPI, 1043669633, was assigned on June 6, 2016. Dr. Iannazzo holds Indiana license 02005669A.
NPI and contact details
- NPI
- 1043669633NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8426349283
- NPI enumeration date
- June 6, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (317) 962-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nicholas Stephen Iannazzo practices at IU Health Methodist Hospital in Indianapolis, Indiana
Dr. Iannazzo's primary practice is IU Health Methodist Hospital, at 1701 N Senate Blvd, Indianapolis, IN 46202 in Marion County. The practice phone is (317) 962-2000.
- IU Health Methodist Hospital1701 N Senate Blvd, Indianapolis, IN 46202 · Marion CountyPhone(317) 962-2000
Source: Dmand AI Affiliation Data
Dr. Nicholas Stephen Iannazzo is affiliated with 3 sites of care and 3 medical groups
Dr. Iannazzo's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dr. Iannazzo is also affiliated with IU Health Bloomington Hospital. The medical group on file is IU Health Medical Group. Dmand AI also links Dr. Iannazzo to 2 more medical groups and 1 behavioral health center, each named with a free account.
IU Health Bloomington HospitalIU Health Medical Group2 medical groupsNames with a free account1 behavioral health centerName with a free account
See all 6 affiliations for Dr. IannazzoSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nicholas Stephen Iannazzo's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Iannazzo practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| IU Health Methodist Hospital | Available with a free account |
| +2 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Nicholas Stephen Iannazzo is one of 242 pulmonologists in Indiana
Pulmonary disease is Dr. Iannazzo's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Iannazzo is licensed in Indiana.
Specialties and state licenses
- Pulmonary disease, IndianaPrimary
Pulmonologists near Dr. Iannazzo
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
242pulmonologists in Indiana70pulmonologists in Indianapolis27pulmonologists at IU Health Methodist Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nicholas Stephen Iannazzo billed Medicare for 224 services in 2024
CMS data shows 224 Medicare services from Dr. Iannazzo across 4 procedure codes in 2024, for 141 Medicare patients. Medicare paid $23,835 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024224
Medicare patients141
Paid by Medicare$23,835
Procedure codes4
Dr. Iannazzo's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1252024: 22479%
Dr. Iannazzo compared with the Indiana median for pulmonologists, 2024
- Dr. Iannazzo
- Indiana median
- Medicare services
- 224vs 74670% below
- Medicare patients
- 141vs 35460% below
- Part D claims
- 295vs 83765% below
Medians across 247 pulmonologists in Indiana with Dmand AI profiles that report each measure.
Dr. Iannazzo's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Iannazzo?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Iannazzo and other pulmonologists in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas Stephen Iannazzo treated 141 Medicare patients in 2024, average age 71
CMS counts 141 Medicare patients who saw Dr. Iannazzo in 2024. The largest group is 65 to 74, with 73 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.38, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Iannazzo's median patient age at 63, with 52% women.
Medicare patients, 2024141
Average age71
Average risk score2.38
Also on Medicaid18%
Dr. Iannazzo's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Iannazzo's Medicare patients by sex, 2024
- Women6949%
- Men7251%
Chronic conditions among Dr. Iannazzo's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease48%
- Arthritis47%
- COPD46%
- Diabetes45%
- Ischemic heart disease43%
- Mood disorders41%
Share of Medicare patients with each condition. A patient can have several.
Dr. Iannazzo's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas Stephen Iannazzo wrote 389 Medicare Part D claims in 2024
In 2024, Dr. Iannazzo wrote 389 Medicare Part D claims for 55 patients. 52% of them were for generic drugs. CMS names the drug for 295 of them, across 14 drugs with 11 or more claims each, at $365,118 in total drug cost. In 2023, CMS named 157 claims across 8 drugs.
Part D claims, 2024389
Drugs named by CMS14
Total drug cost$365,118
Part D patients55
Dr. Iannazzo's Part D claims by kind of drug, 2024
- Generic204 claims52%
- Brand-name185 claims48%
Dr. Iannazzo's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Iannazzo's Part D claims, 2024
- Antibiotics10%39 of 389 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1572024: 29588%
Drugs named by CMS: 14 in 2024, 8 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Nicholas Stephen Iannazzo takes part in Medicare
Dr. Iannazzo accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nicholas Stephen Iannazzo has 1 publication on record
Dmand AI links 1 paper to Dr. Iannazzo in 2022. Dr. Iannazzo's most frequent co-authors are Misbah Baqir, MD, Susan K. Mathai, MD and Teng Moua, MD.
Papers1
Dr. Iannazzo's most frequent co-authors
Recent publications by Dr. Iannazzo
See who Dr. Iannazzo researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Iannazzo works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nicholas Stephen Iannazzo received $291 in industry payments from 2024 to 2025
CMS Open Payments shows 10 general payments to Dr. Iannazzo from 8 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. United Therapeutics Corporation paid the most, $121.
General payments to Dr. Iannazzo by program year, 2024 to 2025
Companies that paid Dr. Iannazzo the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas Stephen Iannazzo's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nicholas Stephen Iannazzo
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nicholas Stephen Iannazzo's NPI number?
Dr. Nicholas Stephen Iannazzo's NPI number is 1043669633. It was assigned on June 6, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Stephen Iannazzo?
Dr. Nicholas Stephen Iannazzo is a pulmonologist in Indianapolis, Indiana. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Nicholas Stephen Iannazzo practice?
Dr. Iannazzo practices at 1701 N Senate Blvd, Indianapolis, IN 46202. Dr. Iannazzo's primary practice is IU Health Methodist Hospital in Indianapolis, Indiana, part of Indiana University Health. Dmand AI also links Dr. Iannazzo to 2 medical groups and 1 behavioral health center.
What is Dr. Nicholas Stephen Iannazzo's office phone number?
The practice phone on file for Dr. Iannazzo is (317) 962-2000.
What is Dr. Nicholas Stephen Iannazzo's medical license number?
Dr. Iannazzo holds Indiana license 02005669A.
Which hospitals is Dr. Nicholas Stephen Iannazzo affiliated with?
Dr. Iannazzo practices at IU Health Methodist Hospital in Indianapolis, Indiana. Dr. Iannazzo is also affiliated with IU Health Bloomington Hospital.
What medical group is Dr. Nicholas Stephen Iannazzo part of?
Dr. Iannazzo is linked to IU Health Medical Group. Dmand AI links Dr. Iannazzo to 2 more medical groups.
Does Dr. Nicholas Stephen Iannazzo accept Medicare?
Yes. CMS data shows Dr. Iannazzo billed Medicare for 224 services in 2024, and Dr. Iannazzo accepts Medicare assignment.
How many Medicare patients does Dr. Nicholas Stephen Iannazzo see?
CMS counts 141 Medicare patients who saw Dr. Iannazzo in 2024, with an average age of 71.
What services does Dr. Nicholas Stephen Iannazzo bill to Medicare?
In 2024, Dr. Iannazzo's most billed Medicare services were critical care (99291), hospital inpatient care (99233) and hospital inpatient care (99232).
Show 5 more questionsShow fewer questions
What drugs does Dr. Nicholas Stephen Iannazzo prescribe most?
In 2024 Medicare Part D data, Dr. Iannazzo's most prescribed drugs by claims were Montelukast Sodium, Albuterol Sulfate Hfa and Prednisone.
Has Dr. Nicholas Stephen Iannazzo received payments from drug or device companies?
CMS Open Payments shows $291 in general payments to Dr. Iannazzo from 8 companies from 2024 to 2025. The largest total came from United Therapeutics Corporation.
How long has Dr. Nicholas Stephen Iannazzo been practicing?
Dr. Iannazzo graduated from medical school in 2016, 10 years ago.
Does Dr. Nicholas Stephen Iannazzo do research?
Dmand AI links 1 publication to Dr. Iannazzo.
Who does Dr. Nicholas Stephen Iannazzo publish with?
Dr. Iannazzo's most frequent co-authors are Misbah Baqir, MD (1 shared paper), Susan K. Mathai, MD (1 shared paper) and Teng Moua, MD (1 shared paper).
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