Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Mr. Nicholas Thong Au, MSN, APRN, AGACNP-BC

Individual provider Critical Care Medicine Registered Nurse · NPI 1407588858

Mr. Nicholas Thong Au, MSN, APRN, AGACNP-BC is a Critical Care Medicine Registered Nurse in Covina, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2022
Specialties on file
2
What do these letters mean?
MSN — Master of Science in Nursing
A graduate nursing degree, usually held alongside an advanced practice licence.
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

Practice location Address checks out

235 E Badillo St
Covina, CA 91723-2116
Phone: (626) 915-4700
Fax: (626) 214-7814
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 95036173 (CA)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 95275145 (CA)

Record details

NPI number1407588858
Entity typeIndividual (Type 1)
GenderMale
Credentials MSN , APRN , AGACNP-BC
Sole proprietorYes
NPI enumeratedJune 24, 2022
Last updated in NPPESAugust 21, 2025
Certification dateAugust 21, 2025

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $94 4 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.