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JOYCE J HSU MD
NPI 1740294834
Pediatrics - Pediatric Rheumatology in Palo Alto, CA

Active since July 27, 2006PECOS Enrolled
725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: April 11, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Joyce J Hsu Md NPPES

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

JOYCE J HSU MD (NPI 1740294834) is an individual pediatric rheumatology provider in Palo Alto, California, licensed in California (A74603) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Palo Alto.

NPPES Registry Identity

NPI1740294834
Entity TypeIndividualFemale
Primary Taxonomy2080P0216X
Provider Legal NameJOYCE J HSUCredential: MD
Location Address725 WELCH RDPalo Alto, CA 94304-1601
Mailing Address2680 Hanover StPalo Alto, CA 94304-1117
Phone(650) 497-8000
Sole ProprietorNo
Enumeration DateJuly 27, 2006
Last NPPES UpdateApril 11, 2024
NPPES CertifiedApril 11, 2024
✔ NPI 1740294834 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0216X
License✔ Licensed in CA · A74603
Definition
A pediatrician who treats diseases of joints, muscle, bones and tendons. A pediatric rheumatologist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
Also ListedPediatricsTaxonomy 208000000X · License A74603 (CA)
725 WELCH RD, Palo Alto, CA 94304
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Secondary Practice Location 1

Location 1725 Welch RdPalo Alto, CA 94304-1601 · Phone (650) 498-7103

Other Identifiers 1

Medicaid00A746030CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Joyce J Hsu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Joyce Hsu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lpch Medical Group Div Of Lucile
Same address
Children
725 WELCH RD
Palo Alto, CA 94304
  • Reassigned Medicare billing, California enrollment
  • 3,617 clinicians in this Medicare group
NPI 1417907940 (650) 498-6762

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

EIRI INENAGA MS, OTR/L
Occupational Therapist (Pediatrics)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8218
WENDY LEIGH ADAMS ARNP
Nurse Practitioner (Neonatal)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
KEVIN WEI-HAN CHI MD
Pediatrics
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
ASHEEN RAMA MD
Anesthesiology (Pediatric Anesthesiology)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
CRYSTAL LEE MACKALL MD
Pediatrics (Pediatric Hematology-Oncology)
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
KRISTI LYNNE O'CONNOR OT
Occupational Therapist
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
LAUREN GENNA ROOS NP
Nurse Practitioner
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000
SHALINI MITTAL MD
Hospitalist
725 WELCH RD
PALO ALTO, CA 94304
Santa Clara County (650) 497-8000

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 Joyce Hsu's NPI number?

The NPI number for Joyce Hsu is 1740294834. It was assigned to this individual provider in the NPPES registry on July 27, 2006.

Where is Joyce Hsu located?

Joyce Hsu practices at 725 Welch Rd, Palo Alto, CA 94304. The listed phone number is (650) 497-8000.

What is Joyce Hsu's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Rheumatology, with taxonomy code 2080P0216X.

Is Joyce Hsu enrolled in Medicare?

Yes. Joyce Hsu is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Joyce Hsu's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Joyce Hsu reassigns Medicare benefits to Lpch Medical Group Div Of Lucile (Palo Alto, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Joyce Hsu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Joyce Hsu was last updated on April 11, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.