NPPES file of Aug 9, 2026

Leslie Ann Johnson

Family Medicine Physician · Westlake Village, CA

Leslie Ann Johnson is a family medicine physician with a practice address in Westlake Village, California, and NPI 1083107197, issued on Jun 13, 2018. Check the license (California A174473, 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
1083107197
Name
Leslie Ann Johnson
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A174473 CA
Self-reported in NPPES; status is on the state search
Practice location
141 Triunfo Canyon RD Ste 110, Westlake Village, CA 91361
Phone
(805) 371-1393
Enumerated
Jun 13, 2018
Record last updated
Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20210914001844); accepts Medicare assignment
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 141 Triunfo Canyon RD Ste 110

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

  1. Natalie Abrahamian, M.D.Internal Medicine Physician1356882567
  2. Christine Dahlin, M.D.Internal Medicine Physician1922293786
  3. Mark HallRheumatology Physician1891181103
  4. Alina Katsman, M.D.Adult Medicine Physician1528351459
  5. Fang-Yu Liu, MDInfectious Disease Physician1104311216
  6. Dharushana Muthulingam, MDInfectious Disease Physician1447526231

Verify Leslie Ann Johnson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A174473
    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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50% fewer Medicare Part D claims than the average family medicine physician in 2024

1,761 Medicare Part D claims for 285 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.

  1. Leslie Johnson1,761
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium149 claims
  2. Levothyroxine Sodium124 claims
  3. Amlodipine Besylate110 claims
  4. Lisinopril64 claims
  5. Rosuvastatin Calcium63 claims
  6. Losartan Potassium61 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. The Regents OF The University OF CaliforniaThousand Oaks, CA

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

19 family medicine physician records list a practice address in Westlake Village

They are 19 of the 1,397 NPPES records with a practice address in Westlake Village, and 17,133 family medicine physician records in California.

Other family medicine physician records in California

  1. Omer Aba-Omer, MDSanta Monica, CA1649702093
  2. Michelle Ababa, MDWilmington, CA1710922513
  3. Anna Tzeitel Abalos, MDRoseville, CA1720200017
  4. Adan Abarca, MDAnaheim, CA1760553689
  5. Vanessa Abarca, DOVentura, CA1952040859
  6. Lorraine Abate, M.D.Sacramento, CA1104840008
  7. Robert Abatecola, MDCastro Valley, CA1669551719
  8. Romeo Abaya, M.D.Cottonwood, CA1598053506
  9. Effiem Abbah, MD, MPHSan Francisco, CA1821185133
  10. Khuzeman Abbasi, MDSanta Rosa, CA1841979952

Common questions

What is Leslie Ann Johnson's NPI number?

Leslie Ann Johnson's National Provider Identifier (NPI) is 1083107197, issued on Jun 13, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Leslie Ann Johnson located?

The NPPES record lists a practice address at 141 Triunfo Canyon RD Ste 110, Westlake Village, CA, 91361. Phone: (805) 371-1393. Providers update this record themselves, so call before visiting.

How can I verify Leslie Ann Johnson's license?

NPPES lists California license number A174473, 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 Leslie Ann Johnson prescribe under Medicare Part D?

In 2024, Leslie Ann Johnson had 1,761 Medicare Part D claims for 285 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.