James Sang Ko, MD
Emergency Medicine Physician · Lubbock, TX
James Sang Ko, MD is an emergency medicine physician with a practice address in Lubbock, Texas, and NPI 1669096251, issued on May 30, 2020. Check the license (Texas U1939, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- James Sang Ko
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- U1939 TX
Self-reported in NPPES; status is on the state search - Practice location
- 3601 4TH St, Lubbock, TX 79430
- Phone
- (806) 743-1000
- Enumerated
- May 30, 2020
- Record last updated
- Aug 10, 2023
- Medicare enrollment
- Enrolled (PECOS I20230825001132); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 3601 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carine AfiadataStudent in an Organized Health Care Education/Training Program1689465502
- Mario Aguayo, CRNACertified Registered Nurse Anesthetist1457603920
Verify James Sang Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license U1939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average emergency medicine physician in 2024
31 Medicare Part D claims for 25 beneficiaries, against an average of 226 among the 54,106 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
- Lubbock County Hospital DistrictLubbock, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James Sang Ko among 4,885 emergency medicine physician records in Texas
James Sang Ko, MD is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% 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 84% of them.
- NPI issued2020 · 84% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2020 · median 2013 among the 2,779 with a school on file
- Record last updated2023 · 55% 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 Texas 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 Texas
There are 4,885 emergency medicine physician records in Texas.
All 4,885 in Texas → Every provider in Lubbock → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Kyle Conley, MDLubbock, TX 794301265179865
- Christopher HidalgoLubbock, TX 794301710678206
- Christina Lee, MDLubbock, TX 794301770106460
- Michael Mitchell, DOLubbock, TX 794301902543432
- Bradley Mott, MDLubbock, TX 794301376280305
- Stephanie Perea-Neal, DOLubbock, TX 794301467143925
- Joshua Preator, DOLubbock, TX 794301760173165
- Alexander Sirney, DOLubbock, TX 794301760033989
Common questions
What is James Sang Ko, MD's NPI number?
James Sang Ko, MD's National Provider Identifier (NPI) is 1669096251, issued on May 30, 2020. An NPI identifies a provider in billing; it is not a license.
Where is James Sang Ko, MD located?
The NPPES record lists a practice address at 3601 4TH St, Lubbock, TX, 79430. Phone: (806) 743-1000. Providers update this record themselves, so call before visiting.
How can I verify James Sang Ko, MD's license?
NPPES lists Texas license number U1939, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does James Sang Ko, MD prescribe under Medicare Part D?
In 2024, James Sang Ko, MD had 31 Medicare Part D claims for 25 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.