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WENDY TIENHUI SU M.D.
NPI 1609807064
Surgery - Pediatric Surgery in Palo Alto, CA

Active since July 05, 2006PECOS Enrolled
725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: April 29, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 29, 2024, Apr 7, 2021, Jul 26, 2018 (3 updates tracked since 2018).

About Wendy Tienhui Su M.d. NPPES

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

WENDY TIENHUI SU M.D. (NPI 1609807064) is an individual pediatric surgery provider in Palo Alto, California, licensed in California (A67657) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1609807064
Entity TypeIndividualFemale
Primary Taxonomy2086S0120X
Provider Legal NameWENDY TIENHUI SUCredential: M.D.
Location Address725 WELCH RDPalo Alto, CA 94304
Mailing Address725 Welch RdPalo Alto, CA 94304-1601 · (650) 497-8000
Phone(650) 497-8000
Sole ProprietorNo
Enumeration DateJuly 5, 2006
Last NPPES UpdateApril 29, 20243 updates tracked since enumeration
NPPES CertifiedApril 29, 2024
✔ NPI 1609807064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
Licenses✔ Licensed in CA · A67657✔ Licensed in ID · M-14195
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
Also ListedSurgeryTaxonomy 208600000X · License A67657 (CA)
725 WELCH RD, Palo Alto, CA 94304
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc., UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Wendy Tienhui Su M.d. 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

6

Medicare enrollment records show Wendy Su reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

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
Stanford Health Care
0.2 mi
General Acute Care Hospital
300 PASTEUR DRIVE
Stanford, CA 94305
  • Reassigned Medicare billing, California enrollment
  • 4,258 clinicians in this Medicare group
NPI 1437292927 (650) 723-4000
County Of Santa Clara
2.0 mi
Mental Health (Including Community Mental Health Center)
231 GRANT AVENUE
Palo Alto, CA 94306
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1588721500 (California), NPI 1629301346 (California)
  • 2,460 clinicians in this Medicare group
NPI 1144330614 (650) 321-5545
Valley Children's Medical Group
67 mi
Pediatrics
1524 MCHENRY AVE, SUITE 550
Modesto, CA 95350
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Valley Childrens Medical Group
  • 387 clinicians in this Medicare group
NPI 1437555265 (559) 353-5010
Banner Physician Super Specialists Arizona LLC
622 mi
Nutrition, Education
5310 W THUNDERBIRD RD STE 214
Glendale, AZ 85306
  • Reassigned Medicare billing, Arizona enrollment
  • 188 clinicians in this Medicare group
NPI 1578125738 (602) 865-4480
Presbyterian Healthcare Services
882 mi
General Acute Care Hospital
1100 CENTRAL SE
Albuquerque, NM 87106
  • Reassigned Medicare billing, New Mexico enrollment
  • 2,331 clinicians in this Medicare group
NPI 1215913470 (505) 841-1234

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 Wendy Su's NPI number?

The NPI number for Wendy Su is 1609807064. It was assigned to this individual provider in the NPPES registry on July 5, 2006.

Where is Wendy Su located?

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

What is Wendy Su's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Wendy Su enrolled in Medicare?

Yes. Wendy Su is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Wendy Su's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Wendy Su reassigns Medicare benefits to 6 organizations: Lpch Medical Group Div Of Lucile (Palo Alto, CA), Stanford Health Care (Stanford, CA), County Of Santa Clara (Palo Alto, CA), Valley Children's Medical Group (Modesto, CA), Banner Physician Super Specialists Arizona LLC (Glendale, AZ) and 1 more organization, listed in the Medicare section above. Each 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 Wendy Su's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Wendy Su accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. and UnitedHealthcare list Wendy Su as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Wendy Su was last updated on April 29, 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.