Decision MakingHospital MortalityInternational Classification of Diseases
Dr. Nicholas Andrew Leonowicz, MD
NPI1831572254
- Medicare services, 2024
- 229
- Medicare patients, 2024
- 218
- Part D claims, 2024
- 361
- Publications
- 2
- Hospital affiliations
- 1
- Practice address
- 702 Van Buren St., Fort Wayne, IN 46802
- Practice phone
- Call (260) 425-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Nicholas Andrew Leonowicz is an emergency medicine physician in Fort Wayne, Indiana
Dr. Leonowicz practices at Lutheran Downtown Hospital in Fort Wayne, Indiana, part of Community Health Systems.
Dr. Leonowicz's NPI, 1831572254, was assigned on July 2, 2015. Dr. Leonowicz holds Indiana license 01080188A.
NPI and contact details
- NPI
- 1831572254NPI Registry (opens in a new tab)
- NPI enumeration date
- July 2, 2015
- NPI status
- Active
- Practice phone
- (260) 425-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Nicholas Andrew Leonowicz practices at Lutheran Downtown Hospital in Fort Wayne, Indiana
Dr. Leonowicz's primary practice is Lutheran Downtown Hospital, at 702 Van Buren St., Fort Wayne, IN 46802 in Allen County. The practice phone is (260) 425-3000.
- Lutheran Downtown Hospital702 Van Buren St., Fort Wayne, IN 46802 · Allen CountyPhone(260) 425-3000
Source: Dmand AI Affiliation Data
Dr. Nicholas Andrew Leonowicz is affiliated with 2 sites of care and 1 medical group
Dr. Leonowicz's primary practice is Lutheran Downtown Hospital in Fort Wayne, Indiana, part of Community Health Systems. The medical group on file is Emergency Professionals of Indiana, P.C. Dmand AI also links Dr. Leonowicz to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nicholas Andrew Leonowicz's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leonowicz practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lutheran Downtown Hospital | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nicholas Andrew Leonowicz is one of 1,275 emergency medicine physicians in Indiana
Emergency medicine is Dr. Leonowicz's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dmand AI has Dr. Leonowicz's licenses on file in 2 states: Indiana and Michigan.
Specialties and state licenses
- Emergency medicine, IndianaPrimary
- Michigan license
Emergency medicine physicians near Dr. Leonowicz
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
1,275emergency medicine physicians in Indiana60emergency medicine physicians in Fort Wayne11emergency medicine physicians at Lutheran Downtown Hospital
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nicholas Andrew Leonowicz billed Medicare for 229 services in 2024
CMS data shows 229 Medicare services from Dr. Leonowicz across 4 procedure codes in 2024, for 218 Medicare patients. Medicare paid $25,490 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024229
Medicare patients218
Paid by Medicare$25,490
Procedure codes4
Dr. Leonowicz's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2452024: 2297%
- Tests and treatments
- 2023: 862024: 0100%
Dr. Leonowicz compared with the Indiana median for emergency medicine physicians, 2024
- Dr. Leonowicz
- Indiana median
- Medicare services
- 229vs 30425% below
- Medicare patients
- 218vs 27721% below
- Part D claims
- 260vs 922.8 times
Medians across 1,276 emergency medicine physicians in Indiana with Dmand AI profiles that report each measure.
Dr. Leonowicz'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Leonowicz and other emergency medicine physicians in Indiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nicholas Andrew Leonowicz treated 218 Medicare patients in 2024, average age 70
CMS counts 218 Medicare patients who saw Dr. Leonowicz in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 38% are also on Medicaid. Their average risk score is 2.08, 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. Leonowicz's median patient age at 43, with 53% women.
Medicare patients, 2024218
Average age70
Average risk score2.08
Also on Medicaid38%
Dr. Leonowicz's Medicare patients by age, 2024
Dr. Leonowicz's Medicare patients by sex, 2024
- Women11452%
- Men10448%
Chronic conditions among Dr. Leonowicz's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Ischemic heart disease49%
- Arthritis48%
- Mood disorders47%
- Anxiety44%
- Depression44%
- Diabetes44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Leonowicz's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women53%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nicholas Andrew Leonowicz wrote 361 Medicare Part D claims in 2024
In 2024, Dr. Leonowicz wrote 361 Medicare Part D claims for 202 patients. 91% of them were for generic drugs. CMS names the drug for 260 of them, across 12 drugs with 11 or more claims each, at $1,660 in total drug cost. In 2023, CMS named 254 claims across 12 drugs.
Part D claims, 2024361
Drugs named by CMS12
Total drug cost$1,660
Part D patients202
Dr. Leonowicz's Part D claims by kind of drug, 2024
- Generic328 claims91%
- Brand-name and other33 claims9%
Dr. Leonowicz'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. Leonowicz's Part D claims, 2024
- Opioids9%31 of 361 claims
- Antibiotics28%100 of 361 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: 2542024: 2602%
Drugs named by CMS: 12 in 2024, 12 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
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Dr. Nicholas Andrew Leonowicz has 2 publications on record
Dmand AI links 2 papers to Dr. Leonowicz, published from 2011 to 2012. Dr. Leonowicz's most frequent co-authors are Kavitha M. Chinnaiyan, MD and Frances Oliver Wood, MD.
Papers2
Years published2011 to 2012
Dr. Leonowicz's most frequent co-authors
Recent publications by Dr. Leonowicz
Congenit Heart Dis
Cardiovascular AgentsHeart Defects, CongenitalHeart Ventricles
See who Dr. Leonowicz researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Leonowicz works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Nicholas Andrew Leonowicz received $467 in industry payments from 2016 to 2023
CMS Open Payments shows 26 general payments to Dr. Leonowicz from 5 drug and device companies from 2016 to 2023. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $189.
General payments to Dr. Leonowicz by program year, 2016 to 2023
Companies that paid Dr. Leonowicz the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nicholas Andrew Leonowicz'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) |
| 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 Andrew Leonowicz
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 Andrew Leonowicz's NPI number?
Dr. Nicholas Andrew Leonowicz's NPI number is 1831572254. It was assigned on July 2, 2015, and it is active in the NPI Registry.
What kind of doctor is Dr. Nicholas Andrew Leonowicz?
Dr. Nicholas Andrew Leonowicz is an emergency medicine physician in Fort Wayne, Indiana. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Nicholas Andrew Leonowicz practice?
Dr. Leonowicz practices at 702 Van Buren St., Fort Wayne, IN 46802. Dr. Leonowicz's primary practice is Lutheran Downtown Hospital in Fort Wayne, Indiana, part of Community Health Systems. Dmand AI also links Dr. Leonowicz to 1 group practice or clinic.
What is Dr. Nicholas Andrew Leonowicz's office phone number?
The practice phone on file for Dr. Leonowicz is (260) 425-3000.
What is Dr. Nicholas Andrew Leonowicz's medical license number?
Dr. Leonowicz holds Indiana license 01080188A, one of the licenses on file in 2 states.
Which states has Dr. Nicholas Andrew Leonowicz been licensed in?
Dmand AI has state licenses on file for Dr. Leonowicz in Indiana and Michigan.
Which hospitals is Dr. Nicholas Andrew Leonowicz affiliated with?
Dr. Leonowicz practices at Lutheran Downtown Hospital in Fort Wayne, Indiana.
What medical group is Dr. Nicholas Andrew Leonowicz part of?
Dr. Leonowicz is linked to Emergency Professionals of Indiana, P.C.
Does Dr. Nicholas Andrew Leonowicz accept Medicare?
Yes. CMS data shows Dr. Leonowicz billed Medicare for 229 services in 2024.
How many Medicare patients does Dr. Nicholas Andrew Leonowicz see?
CMS counts 218 Medicare patients who saw Dr. Leonowicz in 2024, with an average age of 70.
Show 6 more questionsShow fewer questions
What services does Dr. Nicholas Andrew Leonowicz bill to Medicare?
In 2024, Dr. Leonowicz's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).
What drugs does Dr. Nicholas Andrew Leonowicz prescribe most?
In 2024 Medicare Part D data, Dr. Leonowicz's most prescribed drugs by claims were Cephalexin, Methylprednisolone and Albuterol Sulfate Hfa.
Has Dr. Nicholas Andrew Leonowicz received payments from drug or device companies?
CMS Open Payments shows $467 in general payments to Dr. Leonowicz from 5 companies from 2016 to 2023. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Nicholas Andrew Leonowicz been practicing?
Dr. Leonowicz graduated from medical school in 2015, 11 years ago.
Does Dr. Nicholas Andrew Leonowicz do research?
Dmand AI links 2 publications to Dr. Leonowicz, published from 2011 to 2012.
Who does Dr. Nicholas Andrew Leonowicz publish with?
Dr. Leonowicz's most frequent co-authors are Kavitha M. Chinnaiyan, MD (1 shared paper) and Frances Oliver Wood, MD (1 shared paper).
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