Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mr. Steven Huy Ong, MD

Individual provider Nephrology Physician · NPI 1225006349

Mr. Steven Huy Ong, MD is a Nephrology in Fairfield, California. Qualified in 2000, 26 years ago. Practices with Ong Rubin Shahmir a Medical Corporation, a 6-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1411 Oliver Rd Ste 250
Fairfield, CA 94534-3425
Phone: (707) 426-5407
Fax: (707) 426-6376
Show map & directions

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

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence A90786 (CA)

Record details

NPI number1225006349
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 14, 2006
Last updated in NPPESNovember 12, 2024
Certification dateNovember 12, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEPHROLOGY
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Ong Rubin Shahmir A Medical Corporation — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Fairfield