Belen C. Leong, MD
Developmental - Behavioral Pediatrics Physician · Fontana, CA
Belen C. Leong, MD is a developmental - behavioral pediatrics physician with a practice address in Fontana, California, and NPI 1558413914, issued on Jan 17, 2007. Check the license (California A42595, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Belen C. Leong
- Credential
- MD
- Primary taxonomy
- Developmental - Behavioral Pediatrics Physician 2080P0006X
- License number
- A42595 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9961 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-3910
- Enumerated
- Jan 17, 2007
- Record last updated
- Sep 23, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 9961 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Solomon Abila, MDFamily Medicine Physician1871652479
- Jenny Abouelsood, M.D.Family Medicine Physician1457638512
- Marla Abrolat, MDPediatrics Physician1164593133
- Eduardo Acosta, MDPediatrics Physician1497803324
- Michael Adair, MDFamily Medicine Physician1780732651
- Berneva Adams, MDObstetrics & Gynecology Physician1376602987
Verify Belen C. Leong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A42595Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Developmental - Behavioral Pediatrics Physician providers in California
There are 160 developmental - behavioral pediatrics physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other developmental - behavioral pediatrics physician records in California
- Roger Akins, D.O.Sacramento, CA1881666055
- Roxanne Almas, M.D.San Jose, CA1538320916
- Kathleen Angkustsiri, MDSacramento, CA1851311344
- David Ansel, MDPalo Alto, CA1376547612
- Dejeunee Ashby, MDLos Angeles, CA1326561630
- Melissa AultHuntington Beach, CA1629795075
- Leonard Baker, M.D.La Canada, CA1255453627
- Yair Bannett, MDPalo Alto, CA1558848531
- Elizabeth Barrington, MDPalo Alto, CA1992224836
- Anshu Batra, M.D.Los Angeles, CA1356560767
Common questions
What is Belen C. Leong, MD's NPI number?
Belen C. Leong, MD's National Provider Identifier (NPI) is 1558413914, issued on Jan 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Belen C. Leong, MD located?
The NPPES record lists a practice address at 9961 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-3910. Providers update this record themselves, so call before visiting.
How can I verify Belen C. Leong, MD's license?
NPPES lists California license number A42595, 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.