John Michael Duffey, LPC
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2018
- Practice address
- 4811 S 76th St, Milwaukee, WI 53220
- Practice phone
- Call (414) 325-7741
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Child & Family Therapeutic Systems
Milwaukee, Wisconsin
Find John Duffey'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.
John Michael Duffey is a professional counselor in Milwaukee, Wisconsin
John Duffey practices at Child & Family Therapeutic Systems in Milwaukee, Wisconsin.
John Duffey's NPI, 1043794324, was assigned on September 21, 2018. John Duffey holds Wisconsin license 7094-125.
- NPI
- 1043794324NPI Registry (opens in a new tab)
- NPI enumeration date
- September 21, 2018
- NPI status
- Active
- Practice phone
- (414) 325-7741
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
John Michael Duffey practices at Child & Family Therapeutic Systems in Milwaukee, Wisconsin
John Duffey's primary practice is Child & Family Therapeutic Systems, at 4811 S 76th St, Milwaukee, WI 53220 in Milwaukee County. The practice phone is (414) 325-7741.
- Child & Family Therapeutic Systems4811 S 76th St, Milwaukee, WI 53220 · Milwaukee CountyPhone(414) 325-7741
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John Michael Duffey is affiliated with 2 sites of care and 1 medical group
John Duffey's primary practice is Child & Family Therapeutic Systems in Milwaukee, Wisconsin. The medical group on file is Child & Family Therapeutic Systems. Dmand AI also links John Duffey to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John Michael Duffey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Duffey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Child & Family Therapeutic Systems | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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John Michael Duffey is one of 2,108 professional counselors in Wisconsin
Professional is John Duffey's primary specialty in the NPI Registry, under taxonomy code 101YP2500X. John Duffey is licensed in Wisconsin.
Specialties and state licenses
- Professional counselor, WisconsinPrimary
Professional counselors near John Duffey
Counts of professional counselors 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
John Michael Duffey's patients have a median age of 28
Across all payers, Dmand AI patient panel data puts John Duffey's median patient age at 28, with 20% women.
John Duffey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 28
Patient panel by sex, all payers
- Women20%
- Men80%
Source: Dmand AI Patient Panel Data
Sources for John Michael Duffey'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 John Michael Duffey
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What is John Michael Duffey's NPI number?
John Michael Duffey's NPI number is 1043794324. It was assigned on September 21, 2018, and it is active in the NPI Registry.
What does John Michael Duffey specialize in?
John Michael Duffey is a professional counselor in Milwaukee, Wisconsin. The primary specialty in the NPI Registry is Professional Counselor (taxonomy code 101YP2500X).
Where does John Michael Duffey practice?
John Duffey practices at 4811 S 76th St, Milwaukee, WI 53220. John Duffey's primary practice is Child & Family Therapeutic Systems in Milwaukee, Wisconsin. Dmand AI also links John Duffey to 1 group practice or clinic.
What is John Michael Duffey's office phone number?
The practice phone on file for John Duffey is (414) 325-7741.
What is John Michael Duffey's medical license number?
John Duffey holds Wisconsin license 7094-125.
What medical group is John Michael Duffey part of?
John Duffey is linked to Child & Family Therapeutic Systems.
How long has John Michael Duffey been practicing?
John Duffey's NPI was assigned in 2018.
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