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

Individual provider Clinical Social Worker · NPI 1174636211

John C Reifenstuhl, LCSW is a Clinical Social Worker in Naperville, Illinois. Qualified in 1994, 32 years ago. Practices with Oakbrook Behavioral Health Ltd, a 6-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Illinois.

Years since qualifying
32
Licensed in
IL
In the registry since
2006
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.

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Practice location Address checks out

800 W Fifth Ave Ste 101A
Naperville, IL 60563
Phone: (630) 778-6159
Fax: (360) 357-3093
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 149007291 (IL)

Record details

NPI number1174636211
Entity typeIndividual (Type 1)
GenderMale
Credentials LCSW
Sole proprietorNo
NPI enumeratedAugust 15, 2006
Last updated in NPPESJuly 2, 2019

Medicare enrollment

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

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 1994 (32 years in practice)
Group practice Oakbrook Behavioral Health Ltd — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients11
Services billed 178 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Oakbrook Behavioral Health Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 6 clinicians in the practice; 4 are shown here.

Other providers in Naperville