Brian J. Leahy, PhD
- Medicare patients, 2024
- 227
- Hospital affiliations
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 800 Biesterfield Rd, Elk Grove Village, IL 60007
- Practice phone
- Call (847) 437-5500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Brian 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.
Brian J. Leahy is a clinical neuropsychologist in Elk Grove Village, Illinois
Brian Leahy practices at Ascension Alexian Brothers in Elk Grove Village, Illinois, part of Ascension Health Alliance.
Brian Leahy's NPI, 1679505358, was assigned on July 6, 2006. Brian Leahy holds Illinois license 071-006516.
- NPI
- 1679505358NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6103728043
- NPI enumeration date
- July 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 437-5500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Brian J. Leahy practices at Ascension Alexian Brothers in Elk Grove Village, Illinois
Brian Leahy's primary practice is Ascension Alexian Brothers, at 800 Biesterfield Rd, Elk Grove Village, IL 60007 in Cook County. The practice phone is (847) 437-5500.
- Ascension Alexian Brothers800 Biesterfield Rd, Elk Grove Village, IL 60007 · Cook CountyPhone(847) 437-5500
Source: Dmand AI Affiliation Data
Brian J. Leahy is affiliated with 2 sites of care and 2 medical groups
Brian Leahy's primary practice is Ascension Alexian Brothers in Elk Grove Village, Illinois, part of Ascension Health Alliance. The medical group on file is Alexian Brothers Medical Group Specialty Care. Dmand AI also links Brian Leahy to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Brian J. Leahy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brian Leahy practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ascension Alexian Brothers | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Ascension Health Alliance and 6.2K+ hospitals, with verified contacts in the same login.
Brian J. Leahy is one of 149 clinical neuropsychologists in Illinois
Clinical neuropsychologist is Brian Leahy's primary specialty in the NPI Registry, under taxonomy code 103G00000X. Brian Leahy is licensed in Illinois.
Specialties and state licenses
- Clinical neuropsychologist, IllinoisPrimary
Clinical neuropsychologists near Brian Leahy
Counts of clinical neuropsychologists 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
Brian J. Leahy treated 227 Medicare patients in 2024, average age 77
CMS counts 227 Medicare patients who saw Brian Leahy in 2024. The largest group is 75 to 84, with 110 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Brian Leahy's median patient age at 76, with 56% women.
Brian Leahy's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Brian Leahy's Medicare patients by sex, 2024
- Women12354%
- Men10446%
Chronic conditions among Brian Leahy's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Alzheimer's and dementia61%
- Arthritis50%
- Anxiety36%
- Mood disorders34%
- Ischemic heart disease33%
- Diabetes31%
Share of Medicare patients with each condition. A patient can have several.
Brian 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 76
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Brian J. Leahy takes part in Medicare
Brian 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)
Sources for Brian J. 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 DataMedicare Physician & Other Practitioners - 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) |
| 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 Brian J. 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 Brian J. Leahy's NPI number?
Brian J. Leahy's NPI number is 1679505358. It was assigned on July 6, 2006, and it is active in the NPI Registry.
What does Brian J. Leahy specialize in?
Brian J. Leahy is a clinical neuropsychologist in Elk Grove Village, Illinois. The primary specialty in the NPI Registry is Clinical Neuropsychologist (taxonomy code 103G00000X).
Where does Brian J. Leahy practice?
Brian Leahy practices at 800 Biesterfield Rd, Elk Grove Village, IL 60007. Brian Leahy's primary practice is Ascension Alexian Brothers in Elk Grove Village, Illinois, part of Ascension Health Alliance. Dmand AI also links Brian Leahy to 1 group practice or clinic and 1 medical group.
What is Brian J. Leahy's office phone number?
The practice phone on file for Brian Leahy is (847) 437-5500.
What is Brian J. Leahy's medical license number?
Brian Leahy holds Illinois license 071-006516, one of 2 state licenses on file.
Which hospitals is Brian J. Leahy affiliated with?
Brian Leahy practices at Ascension Alexian Brothers in Elk Grove Village, Illinois.
What medical group is Brian J. Leahy part of?
Brian Leahy is linked to Alexian Brothers Medical Group Specialty Care. Dmand AI links Brian Leahy to 1 more medical group.
Does Brian J. Leahy accept Medicare?
Yes. CMS lists Brian Leahy as accepting Medicare assignment.
How many Medicare patients does Brian J. Leahy see?
CMS counts 227 Medicare patients who saw Brian Leahy in 2024, with an average age of 77.
How long has Brian J. Leahy been practicing?
Brian Leahy graduated from medical school in 2001, 25 years ago.
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