NPPES file of Aug 9, 2026

Caitlyn Nguyen, MD

Family Medicine Physician · Murrieta, CA

Caitlyn Nguyen, MD is a family medicine physician with a practice address in Murrieta, California, and NPI 1760825855, issued on Apr 9, 2013. Check the license (California C195504, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1760825855
Name
Caitlyn Nguyen
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
C195504 CA
Self-reported in NPPES; status is on the state search
Practice location
28078 Baxter RD Ste 540, Murrieta, CA 92563
Phone
(909) 381-7100
Enumerated
Apr 9, 2013
Record last updated
Jul 3, 2024
Medicare enrollment
Enrolled (PECOS I20240522003577); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 28078 Baxter RD Ste 540

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Deborah Campbell, R.N.Registered Nurse1346665312
  2. Nicole Fliear, LCSWClinical Social Worker1659258887
  3. Christopher IbarraProfessional Counselor1427989789
  4. Cynthia MantiaRegistered Nurse1336565258
  5. Michael Robinson, M.D.Family Medicine Physician1447329883
  6. Joshua Strunk, DOFamily Medicine Physician1245763432

Verify Caitlyn Nguyen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license C195504
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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63% fewer Medicare Part D claims than the average family medicine physician in 2024

1,297 Medicare Part D claims for 149 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims. 15 claims were for opioids.

  1. Caitlyn Nguyen1,297
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium85 claims
  2. Pantoprazole Sodium50 claims
  3. Losartan Potassium42 claims
  4. Albuterol Sulfate Hfa39 claims
  5. Montelukast Sodium35 claims
  6. Trazodone Hcl32 claims

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

  1. Sac Health SystemMurrieta, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Caitlyn Nguyen among 17,133 family medicine physician records in California

Caitlyn Nguyen, 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. Its NPI, issued in 2013, is newer than 68% of them.

  • NPI issued2013 · 68% of these records are older, 29% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2013 · 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).

48 family medicine physician records list a practice address in Murrieta

They are 48 of the 2,999 NPPES records with a practice address in Murrieta, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Joanna Ayala, MDMurrieta, CA 925631750655668
  2. Laurie Blanscet, DOMurrieta, CA 925631154399954
  3. Brittany Chamberlain, MDMurrieta, CA 925631740773514
  4. Alyssa Coleman, PAMurrieta, CA 925631801438544
  5. Luke EdgsonMurrieta, CA 925631518585280
  6. Darrin Luu, M.D.Murrieta, CA 925631407970684
  7. Tuan Nguyen, M.D.Murrieta, CA 925631144245366
  8. Michael Owyong, MDMurrieta, CA 925631124502323

Common questions

What is Caitlyn Nguyen, MD's NPI number?

Caitlyn Nguyen, MD's National Provider Identifier (NPI) is 1760825855, issued on Apr 9, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Caitlyn Nguyen, MD located?

The NPPES record lists a practice address at 28078 Baxter RD Ste 540, Murrieta, CA, 92563. Phone: (909) 381-7100. Providers update this record themselves, so call before visiting.

How can I verify Caitlyn Nguyen, MD's license?

NPPES lists California license number C195504, 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 Caitlyn Nguyen, MD prescribe under Medicare Part D?

In 2024, Caitlyn Nguyen, MD had 1,297 Medicare Part D claims for 149 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.