Christine Yang Ko, MD
Family Medicine Physician · San Diego, CA
Christine Yang Ko, MD is a family medicine physician with a practice address in San Diego, California, and NPI 1265466551, issued on Jul 10, 2006. Check the license (California A91210, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christine Yang Ko
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A91210 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6699 Alvarado RD, San Diego, CA 92120
- Phone
- (619) 229-3909
- Enumerated
- Jul 10, 2006
- Record last updated
- Nov 11, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (619) 229-3902
- Medicare enrollment
- Enrolled (PECOS I20100504000448); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1997
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 6699 Alvarado RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christine Yang Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91210Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average family medicine physician in 2024
12 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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
- Innovative Medical GroupTemecula, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christine Yang Ko among 17,133 family medicine physician records in California
Christine Yang Ko, MD is one of 17,133 family 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 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1997 · median 2005 among the 10,652 with a school on file
- Record last updated2011 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
780 family medicine physician records list a practice address in San Diego
They are 780 of the 52,937 NPPES records with a practice address in San Diego, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Diego → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Brown, MDSan Diego, CA 921201528139565
- Abigail Buhain, MDSan Diego, CA 921201043252489
- Margaret Elizondo, M.D.San Diego, CA 921201386696466
- Nancy Green, MDSan Diego, CA 921201861569790
- Daniel Hiser, M.D.San Diego, CA 921201376577973
- Vincent Kater, M.D.San Diego, CA 921201629057005
- Ronald Kerr, MDSan Diego, CA 921201114094067
- Joseph Matista, MDSan Diego, CA 921201821169806
Common questions
What is Christine Yang Ko, MD's NPI number?
Christine Yang Ko, MD's National Provider Identifier (NPI) is 1265466551, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christine Yang Ko, MD located?
The NPPES record lists a practice address at 6699 Alvarado RD, San Diego, CA, 92120. Phone: (619) 229-3909. Providers update this record themselves, so call before visiting.
How can I verify Christine Yang Ko, MD's license?
NPPES lists California license number A91210, 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 Christine Yang Ko, MD prescribe under Medicare Part D?
In 2024, Christine Yang Ko, MD had 12 Medicare Part D claims; the average among family medicine physician prescribers was 3,544. 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.