NPPES file of Aug 9, 2026

Diane Vu, DO

Family Medicine Physician · Encinitas, CA

Diane Vu, DO is a family medicine physician with a practice address in Encinitas, California, and NPI 1134195084, issued on Feb 28, 2006. Check the license (California 20A8422, 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
1134195084
Name
Diane Vu
Credential
DO
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A8422 CA
Self-reported in NPPES; status is on the state search
Practice location
477 N EL Camino Real, Encinitas, CA 92024
Phone
(760) 479-3900
Enumerated
Feb 28, 2006
Record last updated
Aug 9, 2011 (not updated in 15 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20041025000335); accepts Medicare assignment
Medical or professional school
College Of Osteo Med Of The Pacific At Pomona, 2001
Telehealth
Offers telehealth (CMS)
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 477 N EL Camino Real

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

  1. Angel Bair, NPNurse Practitioner1235218389
  2. Elizabeth Bartolomeo, ANPAdult Health Nurse Practitioner1952532095
  3. Donna Beck, PHDMarriage & Family Therapist1780015362
  4. Robert Brunst, MD PHDFamily Medicine Physician1639257546
  5. Jennifer Cates, PA-CMedical Physician Assistant1972622751
  6. Mary Ann Cathey, FNPFamily Nurse Practitioner1013995604

Verify Diane Vu in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A8422
    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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41% fewer Medicare Part D claims than the average family medicine physician in 2024

2,093 Medicare Part D claims for 237 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 42 claims were for opioids.

  1. Diane Vu2,093
  2. Specialty average3,544

Most prescribed

  1. Amlodipine Besylate190 claims
  2. Rosuvastatin Calcium160 claims
  3. Levothyroxine Sodium136 claims
  4. Losartan Potassium134 claims
  5. Atorvastatin Calcium102 claims
  6. Metformin Hcl78 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. Scripps HealthEncinitas, CA

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

Diane Vu among 17,133 family medicine physician records in California

Diane Vu, DO 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2001 · median 2005 among the 10,652 with a school on file
  • Record last updated2011 · 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).

53 family medicine physician records list a practice address in Encinitas

They are 53 of the 1,874 NPPES records with a practice address in Encinitas, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Craig Duck, M.D.Encinitas, CA 920241306808613
  2. Susan Glockner, M.D.Encinitas, CA 920241184686495
  3. James Hay, M.D.Encinitas, CA 920241821050758
  4. Diane Hutchison, M.D.Encinitas, CA 920241629054234
  5. Trang Le, MDEncinitas, CA 920241528086303
  6. Gerard Lumkong, MDEncinitas, CA 920241720001977
  7. Alexis Masciana, MDEncinitas, CA 920241851382352
  8. Scott Mercer, M.D.Encinitas, CA 920241295736031

Common questions

What is Diane Vu, DO's NPI number?

Diane Vu, DO's National Provider Identifier (NPI) is 1134195084, issued on Feb 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Diane Vu, DO located?

The NPPES record lists a practice address at 477 N EL Camino Real, Encinitas, CA, 92024. Phone: (760) 479-3900. Providers update this record themselves, so call before visiting.

How can I verify Diane Vu, DO's license?

NPPES lists California license number 20A8422, 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 Diane Vu, DO prescribe under Medicare Part D?

In 2024, Diane Vu, DO had 2,093 Medicare Part D claims for 237 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.