Dr. Kevin Ernest Leahy, MD
- Part D claims, 2024
- 24
- Hospital affiliations
- 4
- Industry payments
- $463
- Medical group
- 1
- State license
- 1
- Practice address
- 801 South Washington, Naperville, IL 60540
- Practice phone
- Call (630) 527-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Leahy's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Kevin Ernest Leahy is an internist in Naperville, Illinois
Dr. Leahy practices at Edward Hospital in Naperville, Illinois, part of Endeavor Health.
Dr. Leahy's NPI, 1083237937, was assigned on May 27, 2020. Dr. Leahy holds Pennsylvania license MT220664.
- NPI
- 1083237937NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1254735525
- NPI enumeration date
- May 27, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (630) 527-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kevin Ernest Leahy practices at Edward Hospital in Naperville, Illinois
Dr. Leahy's primary practice is Edward Hospital, at 801 South Washington, Naperville, IL 60540 in Du Page County. The practice phone is (630) 527-3000.
- Edward Hospital801 South Washington, Naperville, IL 60540 · Du Page CountyPhone(630) 527-3000
Source: Dmand AI Affiliation Data
Dr. Kevin Ernest Leahy is affiliated with 4 sites of care and 1 medical group
Dr. Leahy's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. Dr. Leahy is also affiliated with Northwestern Memorial Hospital. The medical group on file is Shirley Ryan AbilityLab. Dmand AI also links Dr. Leahy to 2 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kevin Ernest Leahy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leahy practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Edward Hospital | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kevin Ernest Leahy is one of 5,652 internists in Illinois
Internal medicine is Dr. Leahy's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Leahy is licensed in Pennsylvania.
Specialties and state licenses
- Internal medicine, PennsylvaniaPrimary
Internists near Dr. Leahy
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Kevin Ernest Leahy's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Leahy's median patient age at 66, with 40% women.
Dr. Leahy's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women40%
- Men60%
Source: Dmand AI Patient Panel Data
Dr. Kevin Ernest Leahy wrote 24 Medicare Part D claims in 2024
In 2024, Dr. Leahy wrote 24 Medicare Part D claims. 50% of them were for generic drugs. CMS names the drug for 11 of them, across 1 drug with 11 or more claims each, at $5,664 in total drug cost. In 2022, CMS named 11 claims across 1 drug.
Dr. Leahy's Part D claims by kind of drug, 2024
- Generic12 claims50%
- Brand-name12 claims50%
Dr. Leahy'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.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 112024: 11No change
Drugs named by CMS: 1 in 2024, 1 in 2022.
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. Kevin Ernest Leahy takes part in Medicare
Dr. Leahy 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. Kevin Ernest Leahy received $463 in industry payments from 2022 to 2024
CMS Open Payments shows 5 general payments to Dr. Leahy from 3 drug and device companies from 2022 to 2024. Food and beverage make up the largest share, 83% of the total. Ipsen Biopharmaceuticals, Inc paid the most, $226.
General payments to Dr. Leahy by program year, 2022 to 2024
General payments to Dr. Leahy by kind, 2022 to 2024
- Food and beverage$38383%
- Education$8017%
Companies that paid Dr. Leahy the most, 2022 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Kevin Ernest Leahy'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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Kevin Ernest Leahy
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. Kevin Ernest Leahy's NPI number?
Dr. Kevin Ernest Leahy's NPI number is 1083237937. It was assigned on May 27, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Kevin Ernest Leahy?
Dr. Kevin Ernest Leahy is an internist in Naperville, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Kevin Ernest Leahy practice?
Dr. Leahy practices at 801 South Washington, Naperville, IL 60540. Dr. Leahy's primary practice is Edward Hospital in Naperville, Illinois, part of Endeavor Health. Dmand AI also links Dr. Leahy to 2 hospitals.
What is Dr. Kevin Ernest Leahy's office phone number?
The practice phone on file for Dr. Leahy is (630) 527-3000.
What is Dr. Kevin Ernest Leahy's medical license number?
Dr. Leahy holds Pennsylvania license MT220664.
Which hospitals is Dr. Kevin Ernest Leahy affiliated with?
Dr. Leahy practices at Edward Hospital in Naperville, Illinois. Dr. Leahy is also affiliated with Northwestern Memorial Hospital. Dmand AI links Dr. Leahy to 2 more hospitals.
What medical group is Dr. Kevin Ernest Leahy part of?
Dr. Leahy is linked to Shirley Ryan AbilityLab.
Does Dr. Kevin Ernest Leahy accept Medicare?
Yes. CMS lists Dr. Leahy as accepting Medicare assignment.
What drugs does Dr. Kevin Ernest Leahy prescribe most?
In 2024 Medicare Part D data, Dr. Leahy's most prescribed drugs by claims were Farxiga.
Has Dr. Kevin Ernest Leahy received payments from drug or device companies?
CMS Open Payments shows $463 in general payments to Dr. Leahy from 3 companies from 2022 to 2024. The largest total came from Ipsen Biopharmaceuticals, Inc.
How long has Dr. Kevin Ernest Leahy been practicing?
Dr. Leahy graduated from medical school in 2020, 6 years ago.
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