DR. DIANE HSU MD
NPI 1972990562
Pediatrics in Santa Clara, CA

Q: What is Diane Hsu's NPI number?

The NPI number for Diane Hsu is 1972990562. It was assigned to this individual provider in the NPPES registry on April 21, 2015.

Q: What is Diane Hsu's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Diane Hsu was last updated on June 25, 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.

Active since April 21, 2015PECOS Enrolled

700 LAWRENCE EXPY, SANTA CLARA, CA 95051(408) 851-1000 Get Directions Write a Review

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

Record update history: Jun 25, 2024, Apr 25, 2024, Feb 4, 2023 and 1 more (4 updates tracked since 2021).

On this page

About Dr. Diane Hsu Md NPPES

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

DR. DIANE HSU MD (NPI 1972990562) is an individual pediatrics provider in Santa Clara, California, licensed in California (A161194) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1972990562

Entity TypeIndividualFemale

Primary Taxonomy208000000X

Provider Legal NameDR. DIANE HSUCredential: MD

Location Address700 LAWRENCE EXPYSanta Clara, CA 95051-5173

Mailing Address1720 Villa St Apt 168Mountain View, CA 94041-1590 · (609) 610-1819

Phone(408) 851-1000

Sole ProprietorNo

Enumeration DateApril 21, 2015

Last NPPES UpdateJune 25, 20244 updates tracked since enumeration

NPPES CertifiedJune 25, 2024

✔ NPI 1972990562 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians

Taxonomy Code208000000X

Licenses✔ Licensed in CA · A161194✔ Licensed in NJ · 25MA10316800

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.

Also ListedPediatrics · Pediatric GastroenterologyTaxonomy 2080P0206X · License 25MA10316800 (NJ)

700 LAWRENCE EXPY, Santa Clara, CA 95051

Open in Google Maps ↗

Secondary Practice Locations 2

Location 1750 Welch Rd Ste 116Palo Alto, CA 94304-1508 · Phone (650) 498-1968

Location 289 French StNew Brunswick, NJ 08901-1935 · Phone (732) 235-7885

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Diane 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 Reassignments

Medicare enrollment records show Diane Hsu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc

0.4 mi

Internal Medicine

710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1073606299 (408) 851-1000

Rutgers Health-Rwj Scleroderma Program

2,532 mi

Maternal & Fetal Medicine

110 REHILL AVE
Somerville, NJ 08876

Reassigned Medicare billing, New Jersey enrollment
641 clinicians in this Medicare group

NPI 1750453346 (908) 685-2864

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95051 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$106.47 typical visit price

range $70.37 – $206.04

Typical copayment $26.61 (range $17.59 – $51.51)

Most-billed visit code 99203

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

HUI WU MD

Hospitalist