Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Jonathan Gau, MD
Hospitalist Physician in Orange, CA · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1730765603
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Registry record
Entity type Individual (Type 1)
Name Jonathan Gau
Credential MD
Sex Male
Practice address 101 the City Dr S Ste 400, Orange, CA, 92868
Phone (714) 456-5691
Enumeration date Mar 22, 2021
Last updated in NPPES Jul 8, 2024
Taxonomy & licenses
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 181959 (CA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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.
Frequently asked questions
Where does Jonathan Gau practice?
The practice location on file with NPPES is in Orange, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jonathan Gau?
The National Provider Identifier (NPI) for Jonathan Gau is 1730765603, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Michael Rochon-Duck Clinical Cardiac Electrophysiology Physician · Orange, CA NPI 1609168517 Mark Salem Gastroenterology Physician · Orange, CA NPI 1821356254 Jason Chou Nephrology Physician · Orange, CA NPI 1083051700 Shwe Aung Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1104246842 Kate Xie Ophthalmology Physician · Orange, CA NPI 1124415187 Morvarid Behdin Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1396276754 Eugenia Chen Student in an Organized Health Care Education/Training Program · Orange, CA NPI 1205330446 Erica Duh Internal Medicine Physician · Orange, CA NPI 1295239382
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-08.