Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Vivienne Sinh Hau, M.D., PH.D.

Ophthalmology Physician in Riverside, CA · enumerated 2007.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588850713

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Vivienne Sinh Hau

Credential M.D., PH.D.

Sex Female

Practice address 10800 Magnolia Ave, Riverside, CA, 92505

Phone (951) 323-2000

Enumeration date Sep 21, 2007

Last updated in NPPES Dec 1, 2021

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License N3077 (TX) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
202923301	Medicaid	TX	-
202923305	Medicaid	TX	-
202923303	Medicaid	TX	-
202923306	Medicaid	TX	-
202923302	Medicaid	TX	-
202923304	Medicaid	TX	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Vivienne Hau?

Vivienne Hau is registered in NPPES with the primary taxonomy of Ophthalmology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Sherif Ammar Otolaryngology Physician · Riverside, CA NPI 1497746598 Bahram Mirza Endocrinology, Diabetes & Metabolism Physician · Riverside, CA NPI 1740262674 Iwan Ong Internal Medicine Physician · Riverside, CA NPI 1265416739 Shawn Higuchi Neurology Physician · Riverside, CA NPI 1447200449 Diane Connelly Obstetrics & Gynecology Physician · Riverside, CA NPI 1013967892 John Dellaripa Certified Registered Nurse Anesthetist · Riverside, CA NPI 1720039696 Mimi Le Cardiovascular Disease Physician · Riverside, CA NPI 1124070420 Mark Massi Pediatrics Physician · Riverside, CA NPI 1568417921

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-01.