James Young Joo Ko, MD
Anesthesiology Physician · Santa Clara, CA
James Young Joo Ko, MD is an anesthesiology physician with a practice address in Santa Clara, California, and NPI 1720109150, issued on Apr 3, 2007. Check the license (California A111595, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Young Joo Ko
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A111595 CA
Self-reported in NPPES; status is on the state search - Practice location
- 700 Lawrence Expy, Santa Clara, CA 95051
- Phone
- (408) 851-6020
- Enumerated
- Apr 3, 2007
- Record last updated
- Dec 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111230000069); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 2006
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 700 Lawrence Expy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rose Abendroth, P.A-C PHDPhysician Assistant1568471126
- Joseph Adams, PHARMD.Pharmacist1851625024
- Netali AdielDoula1003770652
- Abdallah Al-ObaidiStudent in an Organized Health Care Education/Training Program1255133781
- Andrea Mae AlafrizPharmacist1770450967
- Andria AlbertStudent in an Organized Health Care Education/Training Program1992565493
Verify James Young Joo Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A111595Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Permanente Medical Group IncSanta Clara, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Young Joo Ko among 7,571 anesthesiology physician records in California
James Young Joo Ko, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% 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 47% of them.
- NPI issued2007 · 47% of these records are older, 43% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2006 · median 2006 among the 4,868 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in California
There are 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Santa Clara → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Teresa Chiu, MDSanta Clara, CA 950511023195963
- Jenifer Damewood, MDSanta Clara, CA 950511629155569
- Stephen Fisk, MDSanta Clara, CA 950511851478705
- Gordon Haddow, MDSanta Clara, CA 950511649358243
- James Healzer, MDSanta Clara, CA 950511003993932
- Thomas Holtzapple, MDSanta Clara, CA 950511043397979
- Sumangala Kuramkote, MDSanta Clara, CA 950511720165673
- Annie Lee, MDSanta Clara, CA 950511578641148
Common questions
What is James Young Joo Ko, MD's NPI number?
James Young Joo Ko, MD's National Provider Identifier (NPI) is 1720109150, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is James Young Joo Ko, MD located?
The NPPES record lists a practice address at 700 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-6020. Providers update this record themselves, so call before visiting.
How can I verify James Young Joo Ko, MD's license?
NPPES lists California license number A111595, 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.
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.