Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Constantine, P.T.
Physical Therapist in Danbury, CT · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922209147
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Registry record
Entity type Individual (Type 1)
Name Karen Constantine
Credential P.T.
Sex Female
Practice address 33 Hospital Avenue, Danbury, CT, 06810
Phone (203) 792-5558
Fax (203) 791-3213
Enumeration date May 29, 2007
Last updated in NPPES Oct 22, 2009
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 005952 (CT) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 5952 | Other | CT | LICENSE# |
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
Where does Karen Constantine practice?
The practice location on file with NPPES is in Danbury, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Constantine?
The National Provider Identifier (NPI) for Karen Constantine is 1922209147, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → John Baitinger Physician Assistant · Danbury, CT NPI 1396793857 Connecticut Family Orthopedics, P.C Physical Therapist · Danbury, CT NPI 1578674297 William Day Physical Therapist · Danbury, CT NPI 1275629602 Connecticut Family Orthopedics PC Orthopaedic Surgery Physician · Danbury, CT NPI 1619057510
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-22.