Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. William Stephen, LPC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1326123175

Mr. William Stephen, LPC is a Mental Health Counselor in Greenfield, Wisconsin. Qualified in 1994, 32 years ago. Practices with Cornerstone Counseling Services Inc, a 328-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Wisconsin.

Years since qualifying
32
Licensed in
WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
LPC — Licensed Professional Counselor
A licensed mental health counsellor.

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Practice location Address checks out

4811 S 76th St Ste 208
Greenfield, WI 53220-4364
Phone: (414) 817-9331
Fax: (414) 817-0442
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X · Licence 3909 (WI)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X

Record details

NPI number1326123175
Entity typeIndividual (Type 1)
GenderMale
Credentials LPC
Sole proprietorNo
NPI enumeratedOctober 26, 2006
Last updated in NPPESMay 22, 2025
Certification dateMay 22, 2025
Mailing address16535 W Bluemound Rd, Suite 200, Brookfield, WI 53005-5936

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyMENTAL HEALTH COUNSELOR
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Cornerstone Counseling Services Inc — 328 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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