William Garver Gillen, LCPC, PhD
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1900 E Lake Shore Dr, Decatur, IL 62521
- Practice phone
- Call (217) 809-0429
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Decatur Psychiatry Ltd
Decatur, Illinois
Find William Gillen'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.
William Garver Gillen is a professional counselor in Decatur, Illinois
William Gillen practices at Decatur Psychiatry Ltd in Decatur, Illinois.
William Gillen's NPI, 1235294802, was assigned on December 26, 2006.
- NPI
- 1235294802NPI Registry (opens in a new tab)
- NPI enumeration date
- December 26, 2006
- NPI status
- Active
- Practice phone
- (217) 809-0429
- 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
William Garver Gillen practices at Decatur Psychiatry Ltd in Decatur, Illinois
William Gillen's primary practice is Decatur Psychiatry Ltd, at 1900 E Lake Shore Dr, Decatur, IL 62521 in Macon County. The practice phone is (217) 809-0429.
- Decatur Psychiatry Ltd1900 E Lake Shore Dr, Decatur, IL 62521 · Macon CountyPhone(217) 809-0429
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
William Garver Gillen is affiliated with 2 sites of care and 1 medical group
William Gillen's primary practice is Decatur Psychiatry Ltd in Decatur, Illinois. The medical group on file is Decatur Psychiatry, LTD. Dmand AI also links William Gillen 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 William Garver Gillen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Gillen practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Decatur Psychiatry Ltd | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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William Garver Gillen is one of 2,929 professional counselors in Illinois
Professional is William Gillen's primary specialty in the NPI Registry, under taxonomy code 101YP2500X. William Gillen has a license on file in Illinois.
Specialties and state licenses
- Professional counselor, Illinois
Professional counselors near William Gillen
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
William Garver Gillen's patients have a median age of 28
Across all payers, Dmand AI patient panel data puts William Gillen's median patient age at 28, with 53% women.
William Gillen'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
- Women53%
- Men46%
Source: Dmand AI Patient Panel Data
Sources for William Garver Gillen'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 William Garver Gillen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Garver Gillen's NPI number?
William Garver Gillen's NPI number is 1235294802. It was assigned on December 26, 2006, and it is active in the NPI Registry.
What does William Garver Gillen specialize in?
William Garver Gillen is a professional counselor in Decatur, Illinois. The primary specialty in the NPI Registry is Professional Counselor (taxonomy code 101YP2500X).
Where does William Garver Gillen practice?
William Gillen practices at 1900 E Lake Shore Dr, Decatur, IL 62521. William Gillen's primary practice is Decatur Psychiatry Ltd in Decatur, Illinois. Dmand AI also links William Gillen to 1 group practice or clinic.
What is William Garver Gillen's office phone number?
The practice phone on file for William Gillen is (217) 809-0429.
What medical group is William Garver Gillen part of?
William Gillen is linked to Decatur Psychiatry, LTD.
How long has William Garver Gillen been practicing?
William Gillen's NPI was assigned in 2006.
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