Alexander Ko, M.D.
Hospitalist Physician · La Jolla, CA
Alexander Ko, M.D. is a hospitalist physician with a practice address in La Jolla, California, and NPI 1760708283, issued on Apr 8, 2010. Check the license (California A111332, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Ko
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A111332 CA
Self-reported in NPPES; status is on the state search - Practice location
- 10666 N Torrey Pines RD, La Jolla, CA 92037
- Phone
- (619) 403-6041
- Enumerated
- Apr 8, 2010
- Record last updated
- Jan 25, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20110727000710); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2008
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 10666 N Torrey Pines RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Dylan Adamson, M.D.Transplant Surgery Physician1598030702
Verify Alexander Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A111332Check 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 hospitalist physician in 2024
213 Medicare Part D claims for 109 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. 29 claims were for opioids.
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
- Scripps HealthLa Jolla, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Ko among 3,099 hospitalist physician records in California
Alexander Ko, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 44% of them.
- NPI issued2010 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2008 · median 2010 among the 2,505 with a school on file
- Record last updated2019 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
66 hospitalist physician records list a practice address in La Jolla
They are 66 of the 3,648 NPPES records with a practice address in La Jolla, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in La Jolla → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Duc Do, M.D.La Jolla, CA 920371811006851
- Jason Douglas, MDLa Jolla, CA 920371639152044
- Dan Dworsky, M.D.La Jolla, CA 920371114993631
- Liesbet Joris-Quinton, M.D.La Jolla, CA 920371770542987
- Neil Kalra, M.D.La Jolla, CA 920371699925784
- Mark Kyle, M.D.La Jolla, CA 920371154301646
- Diane McNally, MDLa Jolla, CA 920371982861357
- Laura Nicholson, M.D.La Jolla, CA 920371023060845
Common questions
What is Alexander Ko, M.D.'s NPI number?
Alexander Ko, M.D.'s National Provider Identifier (NPI) is 1760708283, issued on Apr 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Ko, M.D. located?
The NPPES record lists a practice address at 10666 N Torrey Pines RD, La Jolla, CA, 92037. Phone: (619) 403-6041. Providers update this record themselves, so call before visiting.
How can I verify Alexander Ko, M.D.'s license?
NPPES lists California license number A111332, 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 Alexander Ko, M.D. prescribe under Medicare Part D?
In 2024, Alexander Ko, M.D. had 213 Medicare Part D claims for 109 beneficiaries; the average among hospitalist physician prescribers was 521. 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.