NPPES file of Aug 9, 2026

Oscar Valdez Rosas, MD, MPH

Psychiatry Physician · La Canada, CA

Oscar Valdez Rosas, MD, MPH is a psychiatry physician with a practice address in La Canada, California, and NPI 1891826509, issued on Mar 7, 2007. Check the license (California A66042, 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
1891826509
Name
Oscar Valdez Rosas
Credential
MD, MPH
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A66042 CA
Self-reported in NPPES; status is on the state search
Practice location
466 Foothill Blvd, La Canada, CA 91011
Phone
(818) 400-0585
Enumerated
Mar 7, 2007
Record last updated
Jul 9, 2013 (not updated in 13 years: call before relying on the address or phone)
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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Also registered at 466 Foothill Blvd

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

  1. Erin Lynch, PSY.D.Clinical Psychologist1790011526

Verify Oscar Valdez Rosas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A66042
    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

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81% fewer Medicare Part D claims than the average psychiatry physician in 2024

185 Medicare Part D claims for 34 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Oscar Rosas185
  2. Specialty average1,000

Most prescribed

  1. Sertraline Hcl21 claims
  2. Trazodone Hcl17 claims
  3. Olanzapine13 claims
  4. Zolpidem Tartrate13 claims
  5. Alprazolam12 claims
  6. Citalopram Hbr11 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.

Oscar Valdez Rosas among 8,673 psychiatry physician records in California

Oscar Valdez Rosas, MD, MPH is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 33% of them.

  • NPI issued2007 · 33% of these records are older, 48% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2013 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

3 psychiatry physician records list a practice address in La Canada

They are 3 of the 222 NPPES records with a practice address in La Canada, and 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Syuzanna AvetyanLa Canada, CA 910111063108439
  2. Joel Badeaux, M.D.La Canada Flintridge, CA 910111992953517
  3. Elizabeth Kostrey, M.D.La Canada, CA 910111851347769
  4. John Lee, MD, MPHLa Canada Flintridge, CA 910111689618464
  5. Lilit Pogosian, M.D.La Canada Flintridge, CA 910111508038837
  6. Siva AvulaDuarte, CA 910101043696727
  7. Reta Floyd, M.D.Duarte, CA 910101194813980
  8. Yitian Timothy Kiong, M.D.Duarte, CA 910101164838884

Common questions

What is Oscar Valdez Rosas, MD, MPH's NPI number?

Oscar Valdez Rosas, MD, MPH's National Provider Identifier (NPI) is 1891826509, issued on Mar 7, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Oscar Valdez Rosas, MD, MPH located?

The NPPES record lists a practice address at 466 Foothill Blvd, La Canada, CA, 91011. Phone: (818) 400-0585. Providers update this record themselves, so call before visiting.

How can I verify Oscar Valdez Rosas, MD, MPH's license?

NPPES lists California license number A66042, 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 Oscar Valdez Rosas, MD, MPH prescribe under Medicare Part D?

In 2024, Oscar Valdez Rosas, MD, MPH had 185 Medicare Part D claims for 34 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.