NPI Portal NPI Lookup & Verification

John W Nickisson, LMSW, CAADC

John W Nickisson is a Clinical Social Worker provider (Social Worker) practicing in Big Rapids, MI, registered in the NPPES registry with NPI 1184751521 since 2007.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1184751521
Entity type Individual (Type 1)
Name John W Nickisson
Credential LMSW, CAADC
Sex Male
Practice address Big Rapids, MI, 49307
Phone 2313496111
Fax 2317966280
Enumeration date 2007-02-27
Last updated in NPPES 2012-11-06

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
101YA0400X Addiction (Substance Use Disorder) Counselor Secondary 2-00774 MI
1041C0700X Clinical Social Worker Primary 6801087785 MI
Copy-ready billing details
Provider: John Nickisson, LMSW, CAADC
NPI: 1184751521
Taxonomy: 1041C0700X (Clinical Social Worker)
Address: Big Rapids, MI, 49307

Other providers at this practice address

NPI Name Type Specialty Location
1881738276 Susan Fowler Individual Clinical Psychologist Big Rapids, MI
1821219882 Bonnie Cripe Individual Clinical Social Worker Big Rapids, MI
1821299769 Theresa Ruelle Individual Clinical Social Worker Big Rapids, MI
1063171346 Chris Paholak Individual Addiction (Substance Use Disorder) Counselor Big Rapids, MI

Verify this record

Cross-check NPI 1184751521 against the authoritative CMS record: view John W Nickisson on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is John Nickisson?
John Nickisson is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-11-06.