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Nicholas Alan Gronhoy, COTA/L

Occupational Therapy Assistant in Mesa, AZ · enumerated 2018 · practices at Piller Child Development.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1639648942

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Registry record

Entity type Individual (Type 1)
Name Nicholas Alan Gronhoy
Credential COTA/L
Sex Male
Practice address 2150 S Country Club Dr Ste 20, Mesa, AZ, 85210
Phone (480) 398-4280
Fax (480) 398-4281
Enumeration date Nov 15, 2018
Last updated in NPPES Nov 15, 2018

Taxonomy & licenses

224Z00000X Occupational Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 046679 (AZ) Primary

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.

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Frequently asked questions

What is the NPI number for Nicholas Gronhoy?
The National Provider Identifier (NPI) for Nicholas Gronhoy is 1639648942, a Type 1 (individual) record in the CMS NPPES registry.
Where does Nicholas Gronhoy practice?
The practice location on file with NPPES is in Mesa, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-11-15.