Tiong S Ong, MD
Hematology & Oncology Physician · Orange, CA
Tiong S Ong, MD is a hematology & oncology physician with a practice address in Orange, California, and NPI 1467532606, issued on Oct 16, 2006. Check the license (California 000000A62740, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Tiong S Ong
- Credential
- MD
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 000000A62740 CA
Self-reported in NPPES; status is on the state search - Practice location
- Uci Medical Center, Orange, CA 92868
- Phone
- (714) 456-8978
- Enumerated
- Oct 16, 2006
- Entity
- Type 1 · individual
Also registered at Uci Medical Center
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Tiong S Ong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 000000A62740Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Hematology & Oncology Physician providers in California
There are 1,306 hematology & oncology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other hematology & oncology physician records in California
- Mark Abate, M.D.Santa Barbara, CA1588778674
- Iman Abdalla, MDLos Angeles, CA1730248311
- Nihal Abdulla, MDLos Alamitos, CA1750585345
- Oyewale Abidoye, M.D.La Jolla, CA1790841815
- Mohamad Adada, M.D., PHDRoseville, CA1528590734
- Jesse Adams, MDSacramento, CA1851479554
- Thompson Adams, MDSanta Monica, CA1407880891
- Camille Adeimy, MDUpland, CA1477785160
- David Adkins, MDModesto, CA1104883644
- Kent Adler, M.D.San Mateo, CA1013074632
Common questions
What is Tiong S Ong, MD's NPI number?
Tiong S Ong, MD's National Provider Identifier (NPI) is 1467532606, issued on Oct 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tiong S Ong, MD located?
The NPPES record lists a practice address at Uci Medical Center, Orange, CA, 92868. Phone: (714) 456-8978. Providers update this record themselves, so call before visiting.
How can I verify Tiong S Ong, MD's license?
NPPES lists California license number 000000A62740, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.