Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ESTHER IVANNA TSAI PA-C
NPI 1972421519
Physician Assistant in Danbury, CT

Active since July 09, 2026
24 HOSPITAL AVE, DANBURY, CT 06810(203) 739-8105(203) 749-9092 Get Directions Write a Review

NPPES record added: July 9, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About Esther Ivanna Tsai Pa-c NPPES

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

ESTHER IVANNA TSAI PA-C (NPI 1972421519) is an individual physician assistant in Danbury, Connecticut, licensed in Connecticut (7600) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1972421519
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameESTHER IVANNA TSAICredential: PA-C
Location Address24 HOSPITAL AVEDanbury, CT 06810-6077
Mailing Address1115 Se 201st AveCamas, WA 98607-9559 · (360) 608-8093
Fax(203) 749-9092
Sole ProprietorNo
Enumeration DateJuly 9, 2026
NPPES CertifiedJuly 9, 2026
NPI 1972421519 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License Licensed in CT · 7600
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
24 HOSPITAL AVE, Danbury, CT 06810

Other Providers at the Same Location NPPES 20

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

Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Nurse Anesthetist, Certified Registered
24 HOSPITAL AVE
DANBURY, CT 06810
Student in an Organized Health Care Education/Training Program
24 HOSPITAL AVE
DANBURY, CT 06810
Physician Assistant (Surgical)
24 HOSPITAL AVE
DANBURY, CT 06810
Nurse Practitioner (Acute Care)
24 HOSPITAL AVE
DANBURY, CT 06810
Anesthesiology
24 HOSPITAL AVE
DANBURY, CT 06810
Internal Medicine
24 HOSPITAL AVE
DANBURY, CT 06810
Emergency Medicine
24 HOSPITAL AVE
DANBURY, CT 06810

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 Esther Tsai's NPI number?

The NPI number for Esther Tsai is 1972421519. It was assigned to this individual provider in the NPPES registry on July 9, 2026.

Where is Esther Tsai located?

Esther Tsai practices at 24 Hospital Ave, Danbury, CT 06810. The listed phone number is (203) 739-8105.

What is Esther Tsai's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

When was this NPI record last updated?

The NPPES record for Esther Tsai was last updated on July 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 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.