Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Tso-Hsien Chien, PT
Physical Therapist in Waltham, MA · enumerated 2017.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1700312741
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Registry record
Entity type Individual (Type 1)
Name Tso-Hsien Chien
Credential PT
Sex Male
Practice address 220 Bear Hill Rd Ste 102, Waltham, MA, 02451
Phone (781) 790-8479
Fax (781) 281-9181
Enumeration date May 11, 2017
Last updated in NPPES May 22, 2019
Taxonomy & licenses
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PT025930 (PA) Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 26078 (MD) Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 041474 (NY) Secondary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 25230 (MA) Primary
PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation.
About the PT credential
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 Tso-Hsien Chien practice?
The practice location on file with NPPES is in Waltham, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Tso-Hsien Chien?
The National Provider Identifier (NPI) for Tso-Hsien Chien is 1700312741, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Katherine Haskins Occupational Therapist · Waltham, MA NPI 1750654190 Dana Thomsen Physical Therapist · Waltham, MA NPI 1184976987 Lindsey Moss Physical Therapist · Waltham, MA NPI 1699017525 Shannon Leary Speech-Language Pathologist · Waltham, MA NPI 1952712606 Jennifer Pflug Physical Therapist · Waltham, MA NPI 1912380676 Therese Nagovan Occupational Therapist · Waltham, MA NPI 1639547748 Courtney Shea Occupational Therapist · Waltham, MA NPI 1215309745 Krystina Burke Speech-Language Pathologist · Waltham, MA NPI 1184075236
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-22.