Rio Sutikno-Ong, MD
Emergency Medicine Physician · Covina, CA
Rio Sutikno-Ong, MD is an emergency medicine physician with a practice address in Covina, California, and NPI 1629104526, issued on Feb 26, 2007. Check the license (California G42729, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rio Sutikno-Ong
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- G42729 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 W San Bernardino RD, Covina, CA 91723
- Phone
- (626) 915-6293
- Enumerated
- Feb 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070605000354); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1979
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Verify Rio Sutikno-Ong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G42729Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25% more Medicare Part D claims than the average emergency medicine physician in 2024
282 Medicare Part D claims for 131 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.
Most prescribed
- Famotidine42 claims
- Ondansetron Hcl42 claims
- Naproxen37 claims
- Ciprofloxacin Hcl34 claims
- Albuterol Sulfate Hfa26 claims
- Ibuprofen25 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
- Gem Medical Group CorporationMonterey Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rio Sutikno-Ong among 7,751 emergency medicine physician records in California
Rio Sutikno-Ong, MD 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 2007, is newer than 40% of them.
- NPI issued2007 · 40% of these records are older, 50% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1979 · median 2011 among the 4,560 with a school on file
- Record last updated2007 · 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 Covina → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Sarah Anh, M.D.Covina, CA 917231104037159
- Frishta Ataie, MDCovina, CA 917231487940102
- John Chon, D.O.Covina, CA 917231184691644
- Peter Kennedy, MDCovina, CA 917231619025665
- David Lee, D.OCovina, CA 917231265791529
- Robert Leonard, MDCovina, CA 917231013337641
- Rebeca Martin, MDCovina, CA 917231104313220
- Thuy Nguyen, MDRancho Cucamonga, CA 917301336162858
Common questions
What is Rio Sutikno-Ong, MD's NPI number?
Rio Sutikno-Ong, MD's National Provider Identifier (NPI) is 1629104526, issued on Feb 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Rio Sutikno-Ong, MD located?
The NPPES record lists a practice address at 420 W San Bernardino RD, Covina, CA, 91723. Phone: (626) 915-6293. Providers update this record themselves, so call before visiting.
How can I verify Rio Sutikno-Ong, MD's license?
NPPES lists California license number G42729, 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 Rio Sutikno-Ong, MD prescribe under Medicare Part D?
In 2024, Rio Sutikno-Ong, MD had 282 Medicare Part D claims for 131 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.