Samuel T. Ko, MD
Family Medicine Physician · Temecula, CA
Samuel T. Ko, MD is a family medicine physician with a practice address in Temecula, California, and NPI 1457301855, issued on May 10, 2006. Check the license (California A91211, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Samuel T. Ko
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A91211 CA
Self-reported in NPPES; status is on the state search - Practice location
- 41715 Winchester RD, Temecula, CA 92590
- Phone
- (951) 676-4193
- Enumerated
- May 10, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (951) 719-1469
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 41715 Winchester RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carlos Ayon Martinez, M.D.Family Medicine Physician1154583128
- Shannon Belcher, FNP-CFamily Nurse Practitioner1013753110
- David Bucher, MDFamily Medicine Physician1790735033
- Norberto Carlos, LCSWClinical Social Worker1275622672
- Stephen Caso, PA-CPhysician Assistant1083916985
- Caroline Dimarucot, M.D.Pediatrics Physician1962673897
Verify Samuel T. Ko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91211Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Samuel T. Ko among 17,133 family medicine physician records in California
Samuel T. 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 not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2026 · 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).
80 family medicine physician records list a practice address in Temecula
They are 80 of the 4,057 NPPES records with a practice address in Temecula, and 17,133 family medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 17,133 in California → Every provider in Temecula → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Cristina Bailey, M.D.Temecula, CA 925901598715823
- David Bucher, MDTemecula, CA 925901790735033
- Walter Combs, MDTemecula, CA 925901104876598
- Mary Gentile, DOTemecula, CA 925901861480998
- Gerardo Hizon, MD, FAAFP, CAQSMTemecula, CA 925901205898558
- Claudia Hsieh, D.O.Temecula, CA 925901255515979
- Tae-Woong Im, MDTemecula, CA 925901912956855
- Sacho Kondovski, DOTemecula, CA 925901780678706
Common questions
What is Samuel T. Ko, MD's NPI number?
Samuel T. Ko, MD's National Provider Identifier (NPI) is 1457301855, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel T. Ko, MD located?
The NPPES record lists a practice address at 41715 Winchester RD, Temecula, CA, 92590. Phone: (951) 676-4193. Providers update this record themselves, so call before visiting.
How can I verify Samuel T. Ko, MD's license?
NPPES lists California license number A91211, 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. 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.