Ian Chong, M.D.
Emergency Medicine Physician · San Diego, CA
Ian Chong, M.D. is an emergency medicine physician with a practice address in San Diego, California, and NPI 1063856177, issued on Apr 19, 2013. Check the license (California A131902, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ian Chong
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A131902 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4647 Zion Ave, San Diego, CA 92120
- Phone
- (619) 528-5000
- Enumerated
- Apr 19, 2013
- Record last updated
- Nov 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 4647 Zion Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samy Abdou, MDNeurological Surgery Physician1215085006
- Samvel Abelyan, PHARMDPharmacist1306629928
- Ali Aboutaleb, MDFamily Medicine Physician1821261405
- Patricia Achilly, CNMAdvanced Practice Midwife1932257847
- Linda Adams, PAPhysician Assistant1427174689
- Mette-Margrethe Adkisson, M.D.Emergency Medicine Physician1528288081
Verify Ian Chong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A131902Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
61% fewer Medicare Part D claims than the average emergency medicine physician in 2024
88 Medicare Part D claims for 61 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefpodoxime Proxetil13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Ian Chong among 7,751 emergency medicine physician records in California
Ian Chong, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 66% of them.
- NPI issued2013 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2021 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in San Diego → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Peter Berkman, M.D.San Diego, CA 921201851305478
- Kathy Cooper, D.O.San Diego, CA 921201891802716
- William Durkin, M.D.San Diego, CA 921201174514582
- James Foster, M.D.San Diego, CA 921201699781955
- David Frant, MDSan Diego, CA 921201174690028
- Steven Kohler, MDSan Diego, CA 921201942377858
- James Larson, M.D.San Diego, CA 921201972519189
- Minh Le, MDSan Diego, CA 921201609829142
Common questions
What is Ian Chong, M.D.'s NPI number?
Ian Chong, M.D.'s National Provider Identifier (NPI) is 1063856177, issued on Apr 19, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Ian Chong, M.D. located?
The NPPES record lists a practice address at 4647 Zion Ave, San Diego, CA, 92120. Phone: (619) 528-5000. Providers update this record themselves, so call before visiting.
How can I verify Ian Chong, M.D.'s license?
NPPES lists California license number A131902, 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.
How much does Ian Chong, M.D. prescribe under Medicare Part D?
In 2024, Ian Chong, M.D. had 88 Medicare Part D claims for 61 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.