NPPES file of Aug 9, 2026

Byron M. Sotomayor, MD

Diagnostic Radiology Physician · Arcadia, CA

Byron M. Sotomayor, MD is a diagnostic radiology physician with a practice address in Arcadia, California, and NPI 1497780456, issued on Jul 11, 2006. Check the license (California A65524, 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
1497780456
Name
Byron M. Sotomayor
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A65524 CA
Self-reported in NPPES; status is on the state search
Practice location
638 W Duarte RD, Arcadia, CA 91007
Phone
(626) 446-0080
Enumerated
Jul 11, 2006
Record last updated
Jul 3, 2025
Fax
(626) 447-4432
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 638 W Duarte RD

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

  1. John Digiulio, D.D.S.,M.S.Orthodontics and Dentofacial Orthopedics Dentistry1053410548
  2. Michael Hoey, ODOptometrist1891788634
  3. Kathleen HwangOrthodontics and Dentofacial Orthopedics Dentistry1154501252
  4. Isaac Minehart, M.D.Pain Medicine (Anesthesiology) Physician1639167091
  5. Angela Wang, M.D.Diagnostic Radiology Physician1881778074
  6. Jun Xu, M.D.Internal Medicine Physician1497010391

Verify Byron M. Sotomayor in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A65524
    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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69% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024

16 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D.

  1. Byron Sotomayor16
  2. Specialty average51

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.

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

Other diagnostic radiology physician records in California

  1. Jason Aaronson, MDLos Angeles, CA1023145463
  2. Brianna Abadie, M.D.Van Nuys, CA1861811291
  3. Kenric Aban, M.D.Oceanside, CA1336218023
  4. Pablo Abbona, MDLos Angeles, CA1689856239
  5. Rashed AbdelaalRiverside, CA1518726090
  6. Ahmed Abdelhalim, MDRiverside, CA1275162927
  7. Fatemeh Abdollahi Mofakham, MDLos Angeles, CA1659652915
  8. Bennett Abe, MDVisalia, CA1184731283
  9. Stephen Abedon, M.D.Daly City, CA1689628687
  10. Richard Abello, M.D.La Jolla, CA1245205996

Common questions

What is Byron M. Sotomayor, MD's NPI number?

Byron M. Sotomayor, MD's National Provider Identifier (NPI) is 1497780456, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Byron M. Sotomayor, MD located?

The NPPES record lists a practice address at 638 W Duarte RD, Arcadia, CA, 91007. Phone: (626) 446-0080. Providers update this record themselves, so call before visiting.

How can I verify Byron M. Sotomayor, MD's license?

NPPES lists California license number A65524, 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 Byron M. Sotomayor, MD prescribe under Medicare Part D?

In 2024, Byron M. Sotomayor, MD had 16 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.