Registry data as of Aug 27, 2026

John Dein, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Sacramento, CA

John Dein, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Sacramento, California, and NPI 1124087838, issued on Mar 21, 2006. Check the license (California G-52082, 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
1124087838
Name
John Dein
Credential
M.D.
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License number
G-52082 CA
Self-reported in NPPES; status is on the state search
Practice location
3941 J St, Sacramento, CA 95819
Phone
(916) 733-6850
Enumerated
Mar 21, 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 3941 J St

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

  1. Randy Arai, M.D.Specialist1689755852
  2. Arash Aryana, M.D.Internal Medicine Physician1548279672
  3. Jong Chen, M.D.Specialist1346313228
  4. Shu Chen, MDInternal Medicine Physician1467541987
  5. Gina Collier, NPCardiovascular Disease Physician1710218474
  6. Ralph Cox, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1962454306

Verify John Dein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G-52082
    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 →

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in California

There are 516 thoracic surgery (cardiothoracic vascular surgery) physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other thoracic surgery (cardiothoracic vascular surgery) physician records in California

  1. Kelechi Abanobi, M.DLos Angeles, CA1720236953
  2. Amir Abolhoda, MDOrange, CA1891875951
  3. Robert Adamson, M.D.San Diego, CA1043292584
  4. Ricardo Aguirre, MDDanville, CA1699739219
  5. Palash Aiyer, MDSan Francisco, CA1649832213
  6. Akbarshakh Akhmerov, MDWest Hollywood, CA1215464276
  7. Talal Al-Atassi, MD, CM, MPH, FRCSCLos Angeles, CA1871985309
  8. Mir Ali, MDSan Bernardino, CA1831301647
  9. Abdulaziz Alkhaldi, MDStanford, CA1366475188
  10. Bradley Allen, M.D.Los Angeles, CA1750309522

Common questions

What is John Dein, M.D.'s NPI number?

John Dein, M.D.'s National Provider Identifier (NPI) is 1124087838, issued on Mar 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Dein, M.D. located?

The NPPES record lists a practice address at 3941 J St, Sacramento, CA, 95819. Phone: (916) 733-6850. Providers update this record themselves, so call before visiting.

How can I verify John Dein, M.D.'s license?

NPPES lists California license number G-52082, 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.