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

VIVIAN HSIAO ANP
NPI 1558332064
Nurse Practitioner - Adult Health in Ithaca, NY

Active since February 01, 2006
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA, ITHACA, NY 14853(607) 255-6946(607) 254-3503 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Vivian Hsiao Anp NPPES

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

VIVIAN HSIAO ANP (NPI 1558332064) is an individual adult health provider in Ithaca, New York, licensed in New York (F300381-1) and active in the NPI registry since February 2006.

NPPES Registry Identity

NPI1558332064
Entity TypeIndividualFemale
Primary Taxonomy363LA2200X
Provider Legal NameVIVIAN HSIAOCredential: ANP
Location AddressCORNELL UNIVERSITY HEALTH SERVICES, HO PLAZAIthaca, NY 14853-3101
Mailing AddressCornell University Health Services, Ho PlazaIthaca, NY 14853-3101 · (607) 255-6946 · Fax (607) 254-3503
Phone(607) 255-6946
Fax(607) 254-3503
Sole ProprietorNo
Enumeration DateFebruary 1, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1558332064 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in NY · F300381-1
CORNELL UNIVERSITY HEALTH SERVICES, Ithaca, NY 14853
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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.

DIANE LOUISE SULLIVAN
Social Worker
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
ROBIN GUSOW HAMLISCH
Social Worker
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
DAVID WENTZEL D.O.
Family Medicine
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
KENNETH MILES COHEN
Psychologist
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
STEVEN L WOOD
Physical Therapy Assistant
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
GAIL BROWN RN
Registered Nurse
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
TRACEY DENARDO
Pharmacist
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946
ANNETTE FULLMER WALLUK RN
Registered Nurse
CORNELL UNIVERSITY HEALTH SERVICES, HO PLAZA
ITHACA, NY 14853
Tompkins County (607) 255-6946

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 Vivian Hsiao's NPI number?

The NPI number for Vivian Hsiao is 1558332064. It was assigned to this individual provider in the NPPES registry on February 1, 2006.

Where is Vivian Hsiao located?

Vivian Hsiao practices at Cornell University Health Services Ho Plaza, Ithaca, NY 14853. The listed phone number is (607) 255-6946.

What is Vivian Hsiao's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

When was this NPI record last updated?

The NPPES record for Vivian Hsiao 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 42 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.