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

JACQUELYNN LORENA TSU M.D.
NPI 1427091990
Pediatrics in San Jose, CA

Active since June 13, 2006
2101 FOREST AVE, SUITE 128, SAN JOSE, CA 95128(408) 295-9151 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Jacquelynn Lorena Tsu M.d. NPPES

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

JACQUELYNN LORENA TSU M.D. (NPI 1427091990) is an individual pediatrics provider in San Jose, California, licensed in California (G081177) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1427091990
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameJACQUELYNN LORENA TSUCredential: M.D.
Location Address2101 FOREST AVE, SUITE 128San Jose, CA 95128-1448
Mailing Address2101 Forest Ave, Suite 128San Jose, CA 95128-1448 · (408) 295-9151
Sole ProprietorNo
Enumeration DateJune 13, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1427091990 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License Licensed in CA · G081177
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
2101 FOREST AVE, San Jose, CA 95128

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D0918530

Jacquelynn L Tsu, MD · San Jose, CA
Expired · Aug 11, 2026
CLIA Number05D0918530
Laboratory TypePhysician Office
Certificate Effective DateAugust 12, 2024
Certificate Expiration DateAugust 11, 2026
Laboratory DirectorJacquelynn L. Tsu
Laboratory Phone(408) 295-9151
Laboratory LocationJacquelynn L Tsu, MD950 S Bascom Ave Ste 2007, San Jose, CA 95128
CLIA data matches this NPI record on: Phone
This certificate is issued to a laboratory to perform only waived tests.

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.

General Practice
2101 FOREST AVE, STE 116
SAN JOSE, CA 95128
Surgery
2101 FOREST AVE, SUITE 100
SAN JOSE, CA 95128
Pediatrics
2101 FOREST AVE, SUITE 128
SAN JOSE, CA 95128
Clinic/Center (Primary Care)
2101 FOREST AVE, SUITE # 104
SAN JOSE, CA 95128
Internal Medicine
2101 FOREST AVE, SUITE 220A
SAN JOSE, CA 95128
Acupuncturist
2101 FOREST AVE, STE 100
SAN JOSE, CA 95128
Chiropractor
2101 FOREST AVE, #123
SAN JOSE, CA 95128
Family Medicine
2101 FOREST AVE, SUITE 124
SAN JOSE, CA 95128

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 Jacquelynn Tsu's NPI number?

The NPI number for Jacquelynn Tsu is 1427091990. It was assigned to this individual provider in the NPPES registry on June 13, 2006.

Where is Jacquelynn Tsu located?

Jacquelynn Tsu practices at 2101 Forest Ave Suite 128, San Jose, CA 95128. The listed phone number is (408) 295-9151.

What is Jacquelynn Tsu's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for Jacquelynn Tsu was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 29 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.