Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tracy Colby, OTR/L
Specialist in Hudson, MA · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1033526371
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Registry record
Entity type Individual (Type 1)
Name Tracy Colby
Credential OTR/L
Sex Female
Practice address 2 Coolidge St, Hudson, MA, 01749
Phone (978) 568-8800
Enumeration date Jul 18, 2014
Last updated in NPPES Jul 18, 2014
Taxonomy & licenses
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.
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 Tracy Colby?
Tracy Colby is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Laura Newhall Pediatric Occupational Therapist · Hudson, MA NPI 1184768608 Lisa Van Gorder Pediatric Occupational Therapist · Hudson, MA NPI 1649455130 Integrated Childrens Therapies Multi-Specialty Clinic/Center · Hudson, MA NPI 1518127331 Integrated Children'S Therapies, Inc. Speech-Language Pathologist · Hudson, MA NPI 1245472554 Tara Jane Bessette Occupational Therapist · Hudson, MA NPI 1578800991 Mary Driscoll Pediatric Occupational Therapist · Hudson, MA NPI 1346618006 Jessica Masterson Speech-Language Pathologist · Hudson, MA NPI 1912406372 Ellyn Schmalzer Occupational Therapist · Hudson, MA NPI 1023510864
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-18.