NPPES file of Aug 9, 2026

Leland Paul Werner, D.O.

Adult Medicine Physician · Camarillo, CA

Leland Paul Werner, D.O. is an adult medicine physician with a practice address in Camarillo, California, and NPI 1174596894, issued on Feb 13, 2006. Check the license (California 20A6933, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1174596894
Name
Leland Paul Werner
Credential
D.O.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
20A6933 CA
Self-reported in NPPES; status is on the state search
Practice location
342 Avenida Valencia, Camarillo, CA 93012
Phone
(805) 759-9959
Enumerated
Feb 13, 2006
Record last updated
Mar 3, 2025
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Verify Leland Paul Werner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A6933
    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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Leland Paul Werner among 386 adult medicine physician records in California

Leland Paul Werner, D.O. is one of 386 adult medicine physician records with a practice address in California. 69% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 65% newer
  • In a Medicare fileNo · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in California

There are 386 adult medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 adult medicine physician records with the nearest ZIP codes

  1. David StegmanVentura, CA 930031710258157
  2. Ceferino Quizon, M.DPort Hueneme, CA 930411326346966
  3. Robert Mathis, M.D.Santa Barbara, CA 931011487865671
  4. Joel Brandt, M.D.Santa Barbara, CA 931091609937374
  5. Mary Cerni, D.O.Placentia, CA 928701164519989
  6. Sean Breen, D.O.Orance, CA 928691780839217
  7. Philip Madrid, MDOrange, CA 928691578523692
  8. Jack Mossler, MDOrange, CA 928691619234887

Common questions

What is Leland Paul Werner, D.O.'s NPI number?

Leland Paul Werner, D.O.'s National Provider Identifier (NPI) is 1174596894, issued on Feb 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Leland Paul Werner, D.O. located?

The NPPES record lists a practice address at 342 Avenida Valencia, Camarillo, CA, 93012. Phone: (805) 759-9959. Providers update this record themselves, so call before visiting.

How can I verify Leland Paul Werner, D.O.'s license?

NPPES lists California license number 20A6933, 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.