Christopher K. Co, DO
Surgery Physician · Riverside, CA
Christopher K. Co, DO is a surgery physician with a practice address in Riverside, California, and NPI 1558990119, issued on Apr 6, 2020. Check the license (California 21897, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher K. Co
- Credential
- DO
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 21897 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4234 Riverwalk Pkwy Ste 120, Riverside, CA 92505
- Phone
- (951) 373-5800
- Enumerated
- Apr 6, 2020
- Record last updated
- Jun 25, 2025
- Fax
- (951) 344-8303
- Medicare enrollment
- Enrolled (PECOS I20250721003421); accepts Medicare assignment
- Medical or professional school
- Touro Un College Of Osteopathic Medicine, Vallejo, 2020
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 4234 Riverwalk Pkwy Ste 120
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Trieu Do, MDSurgery Physician1427300839
- Emily Dubina, MDSurgery Physician1336541937
- Samer Kanaan, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1689864522
- Andrew McCague, DO, FACOS, FACSSurgery Physician1992903207
- David Plurad, M.D.Surgical Critical Care Physician1750425278
- Nicholas Sheets, M.D., M.P.H.Trauma Surgery Physician1912267758
Verify Christopher K. Co in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 21897Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average surgery physician in 2024
52 Medicare Part D claims for 37 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 32 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen17 claims
- Tramadol Hcl12 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 2 group practices
- Advance Surgeons Medical Group IncMonterey Park, CA
- EL-Bershawi Medical CorpRiverside, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher K. Co among 3,118 surgery physician records in California
Christopher K. Co, DO 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 2020, is newer than 94% of them.
- NPI issued2020 · 94% of these records are older, 5% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2020 · median 2003 among the 1,901 with a school on file
- Record last updated2025 · 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 Riverside → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Nicole Baril, MDRiverside, CA 925051023177615
- Edmund Burke, MDRiverside, CA 925051437207347
- Chi Chung, MDRiverside, CA 925051245301217
- Dale Daniel, MDRiverside, CA 925051841367778
- Oscar Garcia, M.D.Riverside, CA 925051902019441
- Fekede Gemechu, MDRiverside, CA 925051861540700
- Rahul Gohil, MDRiverside, CA 925051679754873
- John Husted, M.D.Riverside, CA 925051396873493
Common questions
What is Christopher K. Co, DO's NPI number?
Christopher K. Co, DO's National Provider Identifier (NPI) is 1558990119, issued on Apr 6, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Christopher K. Co, DO located?
The NPPES record lists a practice address at 4234 Riverwalk Pkwy Ste 120, Riverside, CA, 92505. Phone: (951) 373-5800. Providers update this record themselves, so call before visiting.
How can I verify Christopher K. Co, DO's license?
NPPES lists California license number 21897, 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 Christopher K. Co, DO prescribe under Medicare Part D?
In 2024, Christopher K. Co, DO had 52 Medicare Part D claims for 37 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.