Registry data as of Aug 27, 2026

Maren Sowerby, MD

Diagnostic Radiology Physician · Fullerton, CA

Maren Sowerby, MD is a diagnostic radiology physician with a practice address in Fullerton, California, and NPI 1013013630, issued on Sep 15, 2006. Check the license (California G42829, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1013013630
Name
Maren Sowerby
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
G42829 CA
Self-reported in NPPES; status is on the state search
Practice location
101 East Valencia Mesa Drive, Fullerton, CA 92835
Phone
(714) 992-3978
Enumerated
Sep 15, 2006
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 101 East Valencia Mesa Drive

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

  1. Leslie Doi, MDDiagnostic Radiology Physician1740386366
  2. Chau Huynh, M.D.Diagnostic Radiology Physician1649434390
  3. Samuel Maxwell, MDDiagnostic Radiology Physician1386740900
  4. Robert Morten, MDDiagnostic Radiology Physician1821194440
  5. Hao Ngo, MDDiagnostic Radiology Physician1013090117
  6. Jayshree Sampat, MDDiagnostic Radiology Physician1851496475

Verify Maren Sowerby in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G42829
    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.

Statewide context: the Medical Board of California reported 374 disciplinary actions in FY 2022-23. California discipline data →

Diagnostic Radiology Physician providers in California

There are 4,131 diagnostic radiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other diagnostic radiology physician records in California

  1. Jason Aaronson, MDLos Angeles, CA1023145463
  2. Pablo Abbona, MDLos Angeles, CA1689856239
  3. Rashed AbdelaalRiverside, CA1518726090
  4. Ahmed Abdelhalim, MDRiverside, CA1275162927
  5. Fatemeh Abdollahi Mofakham, MDLos Angeles, CA1659652915
  6. Bennett Abe, MDVisalia, CA1184731283
  7. Stephen Abedon, M.D.Daly City, CA1689628687
  8. Richard Abello, M.D.La Jolla, CA1245205996
  9. Deborah Abelson, M.D.Thousand Oaks, CA1821277252
  10. Denise Aberle, MDLos Angeles, CA1053361501

Common questions

What is Maren Sowerby, MD's NPI number?

Maren Sowerby, MD's National Provider Identifier (NPI) is 1013013630, issued on Sep 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Maren Sowerby, MD located?

The NPPES record lists a practice address at 101 East Valencia Mesa Drive, Fullerton, CA, 92835. Phone: (714) 992-3978. Providers update this record themselves, so call before visiting.

How can I verify Maren Sowerby, MD's license?

NPPES lists California license number G42829, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.