Kathryn Nicole Barbaza Marquez, MD
Family Medicine Physician · Loma Linda, CA
Kathryn Nicole Barbaza Marquez, MD is a family medicine physician with a practice address in Loma Linda, California, and NPI 1518594449, issued on Mar 23, 2020. Check the license (California A183663, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Kathryn Nicole Barbaza Marquez
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A183663 CA
MD.48282 AL
Self-reported in NPPES; status is on the state search - Practice location
- 11234 Anderson St, Loma Linda, CA 92354
- Phone
- (909) 558-6688
- Enumerated
- Mar 23, 2020
- Record last updated
- Mar 15, 2024
- Medicare enrollment
- Enrolled (PECOS I20260310001589); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 11234 Anderson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Kathryn Nicole Barbaza Marquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A183663Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Kathryn Nicole Barbaza Marquez among 17,133 family medicine physician records in California
Kathryn Nicole Barbaza Marquez, 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileNo · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2018 · median 2005 among the 10,652 with a school on file
- Record last updated2024 · 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).
62 family medicine physician records list a practice address in Loma Linda
They are 62 of the 4,863 NPPES records with a practice address in Loma Linda, 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 Loma Linda → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Linda Deppe, D.O.Loma Linda, CA 923541568493864
- Joan Haynes-Lee, M.D.Loma Linda, CA 923541578590097
- William Jih, M.D.Loma Linda, CA 923541417985581
- Reewa Kejriwal, N.P.Loma Linda, CA 923541376573188
- Richard Kim, M.D.Loma Linda, CA 923541912014341
- Laurie McNaughton, M.D.Loma Linda, CA 923541205947587
- Michelle Opsahl, M.D.Loma Linda, CA 923541083728729
- Barbara Orr, M.D.Loma Linda, CA 923541033223771
Common questions
What is Kathryn Nicole Barbaza Marquez, MD's NPI number?
Kathryn Nicole Barbaza Marquez, MD's National Provider Identifier (NPI) is 1518594449, issued on Mar 23, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Kathryn Nicole Barbaza Marquez, MD located?
The NPPES record lists a practice address at 11234 Anderson St, Loma Linda, CA, 92354. Phone: (909) 558-6688. Providers update this record themselves, so call before visiting.
How can I verify Kathryn Nicole Barbaza Marquez, MD's license?
NPPES lists California license number A183663, 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.