Ralph S. Peiris, DO
Emergency Medicine Physician · El Centro, CA
Ralph S. Peiris, DO is an emergency medicine physician with a practice address in El Centro, California, and NPI 1730142282, issued on Apr 7, 2006. Check the license (California 20A8157, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ralph S. Peiris
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 20A8157 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1415 Ross Avenue, El Centro, CA 99243
- Phone
- (760) 339-7254
- Enumerated
- Apr 7, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00AX81570 CA
- Medicare enrollment
- Enrolled (PECOS I20040408000789); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 1415 Ross Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Ruiz, P.A.Emergency Medicine Physician1720147077
Verify Ralph S. Peiris in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A8157Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average emergency medicine physician in 2024
514 Medicare Part D claims for 350 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 139 claims were for opioids.
Most prescribed
- Tramadol Hcl73 claims
- Ondansetron Odt65 claims
- Hydrocodone-Acetaminophen46 claims
- Cephalexin44 claims
- Amoxicillin-Clavulanate Potass39 claims
- Naproxen23 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $124.85
1 payment: food and beverage; the largest payer was Ipsen Biopharmaceuticals, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Chico Emergency Physicians Medical Group IncChico, CA
- Enloe Medical CenterChico, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ralph S. Peiris among 7,751 emergency medicine physician records in California
Ralph S. Peiris, DO 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated1998 · 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 El Centro → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Charles Norton, MDEl Centro, CA 992431083677348
- George Rodriguez, MDEl Centro, CA 992431710940077
- Robert Ruiz, P.A.El Centro, CA 992431720147077
- Thomas Yi, D.O.Camp Humphreys, CA 962711962845735
- John Anderson, MDTruckee, CA 961611326365651
- Edward Heneveld, MDTruckee, CA 961611235165861
- Casey Jowers, M.D.Truckee, CA 961611194914929
- Syndi Keats, M.D.Truckee, CA 961611427085364
Common questions
What is Ralph S. Peiris, DO's NPI number?
Ralph S. Peiris, DO's National Provider Identifier (NPI) is 1730142282, issued on Apr 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ralph S. Peiris, DO located?
The NPPES record lists a practice address at 1415 Ross Avenue, El Centro, CA, 99243. Phone: (760) 339-7254. Providers update this record themselves, so call before visiting.
How can I verify Ralph S. Peiris, DO's license?
NPPES lists California license number 20A8157, 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 Ralph S. Peiris, DO prescribe under Medicare Part D?
In 2024, Ralph S. Peiris, DO had 514 Medicare Part D claims for 350 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
What is Ralph S. Peiris, DO's MIPS final score?
The 2023 MIPS final score is 76.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.