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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. CLIFF Y TSAI
NPI 1598555682
Physical Therapist - Orthopedic in Redwood City, CA

Active since May 12, 2025
900 VETERANS BLVD STE 230, REDWOOD CITY, CA 94063(650) 701-0390 Get Directions Write a Review

NPPES record last updated: September 15, 2026. Verified against the NPPES registry weekly; last sync: October 04, 2026.

Record update history: Sep 15, 2026, May 12, 2025 (2 updates tracked since 2025).

About Dr. Cliff Y Tsai NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CLIFF Y TSAI (NPI 1598555682) is an individual orthopedic provider in Redwood City, California, licensed in California (309364) and active in the NPI registry since May 2025.

NPPES Registry Identity

NPI1598555682
Entity TypeIndividualMale
Primary Taxonomy2251X0800X
Provider Legal NameDR. CLIFF Y TSAI
Location Address900 VETERANS BLVD STE 230Redwood City, CA 94063-1740
Mailing Address450 Oak Grove Dr Apt 110Santa Clara, CA 95054-3518 · (530) 902-4675
Phone(650) 701-0390
Sole ProprietorYes
Enumeration DateMay 12, 2025
Last NPPES UpdateSeptember 15, 20262 updates tracked since enumeration
NPPES CertifiedSeptember 15, 2026
✔ NPI 1598555682 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Therapist · OrthopedicRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code2251X0800X
License✔ Licensed in CA · 309364
Definition
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Orthopaedic Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science; pathology/pathophysiology, pain science, medical and surgical considerations, orthopaedic physical therapy theory and practice, and critical inquiry for evidence-based practice.
900 VETERANS BLVD STE 230, Redwood City, CA 94063
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Other Providers at the Same Location NPPES 6

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AMANDA KATHERINE SO PT, DPT
Physical Therapist
900 VETERANS BLVD STE 230
REDWOOD CITY, CA 94063
San Mateo County (650) 701-0390
ROBERT DARE CHRISTY PT, DPT
Physical Therapist
900 VETERANS BLVD STE 230
REDWOOD CITY, CA 94063
San Mateo County (650) 701-0390
MS. MIRIAM KATRINA GADALA DPT
Physical Therapist
900 VETERANS BLVD STE 230
REDWOOD CITY, CA 94063
San Mateo County (650) 701-0390
PHYSIOTHERAPY ASSOCIATES, INC.
Clinic/Center (Rehabilitation)
900 VETERANS BLVD STE 230
REDWOOD CITY, CA 94063
San Mateo County (650) 701-0390
SELECT CAL PHYSICAL THERAPY PC
Clinic/Center (Physical Therapy)
900 VETERANS BLVD STE 230
REDWOOD CITY, CA 94063
San Mateo County (650) 701-0390
NICOLE KIELTY
Physical Therapist
900 VETERANS BLVD STE 230
REDWOOD CITY, CA 94063
San Mateo County (650) 701-0390

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cliff Tsai's NPI number?

The NPI number for Cliff Tsai is 1598555682. It was assigned to this individual provider in the NPPES registry on May 12, 2025.

Where is Cliff Tsai located?

Cliff Tsai practices at 900 Veterans Blvd Ste 230, Redwood City, CA 94063. The listed phone number is (650) 701-0390.

What is Cliff Tsai's specialty?

The primary specialty registered for this NPI is Physical Therapist, specializing in Orthopedic, with taxonomy code 2251X0800X.

When was this NPI record last updated?

The NPPES record for Cliff Tsai was last updated on September 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.