NPPES file of Aug 9, 2026

Stephanie Yanez, D.O.

Hospitalist Physician · West Hills, CA

Stephanie Yanez, D.O. is a hospitalist physician with a practice address in West Hills, California, and NPI 1831836535, issued on May 16, 2022. Check the license (California 20A21886, 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
1831836535
Name
Stephanie Yanez
Credential
D.O.
Primary taxonomy
Hospitalist Physician 208M00000X
License number
20A21886 CA
Self-reported in NPPES; status is on the state search
Practice location
7300 Medical Center Dr, West Hills, CA 91307
Phone
(818) 676-4000
Enumerated
May 16, 2022
Record last updated
Aug 5, 2025
Medicare enrollment
Enrolled (PECOS I20250624001813); accepts Medicare assignment
Medical or professional school
At Still Un Of Hlth Sciences, Col Of Osteo Med, Mesa, 2022
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 7300 Medical Center Dr

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

  1. Stuart Ackerman, M.D.Anesthesiology Physician1942384250
  2. Edward Agazaryan, OTR/LOccupational Therapist1851819577
  3. Roofan Alsayegh, MDHospitalist Physician1477841641
  4. Neelam Amin, M.D.Anatomic Pathology & Clinical Pathology Physician1215956826
  5. Karen Arnold, P.A.Physician Assistant1407886070
  6. Eileen Bastian, M.D.Emergency Medicine Physician1861439267

Verify Stephanie Yanez in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A21886
    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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92% fewer Medicare Part D claims than the average hospitalist physician in 2024

40 Medicare Part D claims for 14 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.

  1. Stephanie Yanez40
  2. Specialty average521

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 CaliforniaSanta Monica, CA

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

Stephanie Yanez among 3,099 hospitalist physician records in California

Stephanie Yanez, D.O. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.

  • NPI issued2022 · 94% of these records are older, 2% newer
  • In a Medicare fileYes · 90% of these records are
  • In the CMS Doctors and Clinicians fileYes · 81% of these records are
  • Graduated2022 · median 2010 among the 2,505 with a school on file
  • Record last updated2025 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hospitalist Physician providers in California

There are 3,099 hospitalist physician records in California.

The 8 hospitalist physician records with the nearest ZIP codes

  1. Roofan Alsayegh, MDWest Hills, CA 913071477841641
  2. Samir Parmekar, M.D.West Hills, CA 913071356367817
  3. Sanjay Udani, M.D.Agoura, CA 913011578604690
  4. Kevin Yamanaka, MDAgoura Hills, CA 913011033283882
  5. Mark Amico, MDNorthridge, CA 913251508968603
  6. Prathima Charugundla, D.O.Northridge, CA 913251104118439
  7. Michael Damavandi, DONorthridge, CA 913251235143801
  8. Mohsen Ebneshahidi, M.DNorthridge, CA 913251801168471

Common questions

What is Stephanie Yanez, D.O.'s NPI number?

Stephanie Yanez, D.O.'s National Provider Identifier (NPI) is 1831836535, issued on May 16, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Yanez, D.O. located?

The NPPES record lists a practice address at 7300 Medical Center Dr, West Hills, CA, 91307. Phone: (818) 676-4000. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Yanez, D.O.'s license?

NPPES lists California license number 20A21886, 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 Stephanie Yanez, D.O. prescribe under Medicare Part D?

In 2024, Stephanie Yanez, D.O. had 40 Medicare Part D claims for 14 beneficiaries; the average among hospitalist physician prescribers was 521. 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.