Siu-Keung Chung, M.D.
Surgery Physician · Fontana, CA
Siu-Keung Chung, M.D. is a surgery physician with a practice address in Fontana, California, and NPI 1295797751, issued on Apr 3, 2006. Check the license (California G84969, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Siu-Keung Chung
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G84969 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9985 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-2460
- Enumerated
- Apr 3, 2006
- Record last updated
- Dec 14, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20051215000514); accepts Medicare assignment
- Medical or professional school
- Ohio State University College Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 9985 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Peyman Andalib, MDStudent in an Organized Health Care Education/Training Program1104028000
- Gerald ArafolOccupational Therapist1134315666
- Lovie Jay Arguelles, PTPhysical Therapist1457472920
Verify Siu-Keung Chung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G84969Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average surgery physician in 2024
60 Medicare Part D claims for 28 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 19 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen16 claims
- Ibuprofen15 claims
- Lidocaine15 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Siu-Keung Chung among 3,118 surgery physician records in California
Siu-Keung Chung, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1984 · median 2003 among the 1,901 with a school on file
- 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 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Fontana → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Lori Chow, MDFontana, CA 923351437220464
- Clifford Eke, MDFontana, CA 923351366501959
- Lawrence Harms, MDFontana, CA 923351821146739
- Taylor Ho, MDFontana, CA 923351003988585
- Samir Johna, MDFontana, CA 923351063571628
- Daniel Klaristenfeld, MDFontana, CA 923351780732701
- Jane Ong, MDFontana, CA 923351538236351
- Chun Rhim, MDFontana, CA 923351750406252
Common questions
What is Siu-Keung Chung, M.D.'s NPI number?
Siu-Keung Chung, M.D.'s National Provider Identifier (NPI) is 1295797751, issued on Apr 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Siu-Keung Chung, M.D. located?
The NPPES record lists a practice address at 9985 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-2460. Providers update this record themselves, so call before visiting.
How can I verify Siu-Keung Chung, M.D.'s license?
NPPES lists California license number G84969, 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 Siu-Keung Chung, M.D. prescribe under Medicare Part D?
In 2024, Siu-Keung Chung, M.D. had 60 Medicare Part D claims for 28 beneficiaries; the average among surgery physician prescribers was 147. 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.