NPPES file of Aug 9, 2026

Dayron Leon, MD

Psychiatry Physician · San Francisco, CA

Dayron Leon, MD is a psychiatry physician with a practice address in San Francisco, California, and NPI 1255919676, issued on Mar 29, 2021. Check the license (California A199545, 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
1255919676
Name
Dayron Leon
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
A199545 CA
Self-reported in NPPES; status is on the state search
Practice location
456 Montgomery St Ste 1400, San Francisco, CA 94104
Phone
(415) 853-0497
Enumerated
Mar 29, 2021
Record last updated
Jul 9, 2025
Medicare enrollment
Enrolled (PECOS I20250730003370); 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 456 Montgomery St Ste 1400

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

  1. Morgan Abcarius, LPCCProfessional Counselor1497295976
  2. Sharon Jose, MDPsychiatry Physician1437772373
  3. Jessie Margolis, MDPsychiatry Physician1104409861
  4. Kari Peck, LPCC-9983Professional Counselor1588072250
  5. Erika Paula Pizarro, M.D.Psychiatry Physician1619238417
  6. Stephanie Sanchez Rubalcava, MAMarriage & Family Therapist1679887228

Verify Dayron Leon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A199545    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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46% fewer Medicare Part D claims than the average psychiatry physician in 2024

542 Medicare Part D claims for 41 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Dayron Leon542
  2. Specialty average1,000

Most prescribed

  1. Risperidone53 claims
  2. Bupropion Xl43 claims
  3. Mirtazapine27 claims
  4. Bupropion Hcl25 claims
  5. Sertraline Hcl25 claims
  6. Olanzapine23 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. Mark David Levine MD Professional CorporationSan Francisco, CA

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

763 psychiatry physician records list a practice address in San Francisco

They are 763 of the 38,143 NPPES records with a practice address in San Francisco, and 8,673 psychiatry physician records in California.

All 763 in San Francisco → All 8,673 in California → Every provider in San Francisco →

Other psychiatry physician records in California

  1. Nancy Aaen, MDNapa, CA1609816669
  2. Criselda Abad-Santos, M.D.Woodland Hills, CA1760461826
  3. Mekabiz Abaian, MDSan Bernardino, CA1891090163
  4. Brenda Abarca, MDTorrance, CA1407485527
  5. Pilar Abascal, M.D.Los Angeles, CA1730528191
  6. Michele Abbasi, M.D.Westlake Village, CA1093940330
  7. Zohaib AbbasiMartinez, CA1013392224
  8. Sandy Abdelkedous, MDFresno, CA1306093109
  9. Nancy Abdelmalak, M.D.Elk Grove, CA1912137498
  10. Ezzat Abdelmalek, M.DDana Point, CA1992828826

Common questions

What is Dayron Leon, MD's NPI number?

Dayron Leon, MD's National Provider Identifier (NPI) is 1255919676, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Dayron Leon, MD located?

The NPPES record lists a practice address at 456 Montgomery St Ste 1400, San Francisco, CA, 94104. Phone: (415) 853-0497. Providers update this record themselves, so call before visiting.

How can I verify Dayron Leon, MD's license?

NPPES lists California license number A199545, 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 Dayron Leon, MD prescribe under Medicare Part D?

In 2024, Dayron Leon, MD had 542 Medicare Part D claims for 41 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.