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

Nancy Peterson Walz, LCSW, PC

Organization Clinical Social Worker · NPI 1639436991

Nancy Peterson Walz, LCSW, PC is a Clinical Social Worker in Crystal Lake, Illinois. Licensed in Illinois. Registered with an NPI since 2012.

Licensed in
IL
In the registry since
2012
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

7115 Virginia Rd Ste 109
Crystal Lake, IL 60014-3112
Phone: (815) 382-7029
Fax: (815) 363-5584
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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 149005637 (IL)

Record details

NPI number1639436991
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Nancy Peterson Walz — Owner/ Licensed Clinical Social Wor · (815) 382-7029
Other names Npw Counseling Services
NPI enumeratedApril 11, 2012
Last updated in NPPESApril 11, 2012
Mailing addressPo Box 742, Island Lake, IL 60042-0742

Other providers in Crystal Lake