Registry data as of Aug 27, 2026

Leon Chen, M.D.

Pediatric Gastroenterology Physician · Long Beach, CA

Leon Chen, M.D. is a pediatric gastroenterology physician with a practice address in Long Beach, California, and NPI 1801194873, issued on Mar 1, 2011. Check the license (California 124950, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1801194873
Name
Leon Chen
Credential
M.D.
Primary taxonomy
Pediatric Gastroenterology Physician 2080P0206X
License number
124950 CA
Self-reported in NPPES; status is on the state search
Practice location
1760 Termino Ave, Long Beach, CA 90804
Phone
(562) 933-8513
Enumerated
Mar 1, 2011
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 1760 Termino Ave

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

  1. Kazuto Augustus, D.P.M.Podiatrist1952471922
  2. Richard Bell, D.P.M.Foot Surgery Podiatrist1164401782
  3. Emory Chang, MDOrthopaedic Surgery Physician1962593962
  4. Torin Cunningham, M.D.Orthopaedic Surgery Physician1861436891
  5. Alejandro EstradaFamily Nurse Practitioner1245729268
  6. Misha Heller, M.D.Dermatology Physician1568717221

Verify Leon Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 124950
    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 →

Industry payments in 2024: $68.58

3 payments, mostly food and beverage; the largest payer was Genzyme Corporation. The 807 providers of this specialty with any payment received $2,561.98 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Leon Chen$68.58
  2. Specialty average$2,561.98

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Pediatric Gastroenterology Physician providers in California

There are 157 pediatric gastroenterology physician records in California.

Other pediatric gastroenterology physician records in California

  1. Adel Abi-Hanna, MDSan Jose, CA1629014576
  2. Oren Abramson, MDSanta Clara, CA1265511307
  3. Atu Agawu, M.D. M.P.HLos Angeles, CA1174903108
  4. Phyllis Agran, M.D.Orange, CA1578583365
  5. Neha Ahuja, M.D.Madera, CA1750728358
  6. Marvin Ament, M.D.Los Angeles, CA1962447896
  7. Hannah Awai, M.D.San Diego, CA1841473618
  8. Ron Bahar, MDEncino, CA1750479002
  9. Ayesha BaigMadera, CA1972919801
  10. Babu Bangaru, M.D.Loma Linda, CA1457546582

Common questions

What is Leon Chen, M.D.'s NPI number?

Leon Chen, M.D.'s National Provider Identifier (NPI) is 1801194873, issued on Mar 1, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Leon Chen, M.D. located?

The NPPES record lists a practice address at 1760 Termino Ave, Long Beach, CA, 90804. Phone: (562) 933-8513. Providers update this record themselves, so call before visiting.

How can I verify Leon Chen, M.D.'s license?

NPPES lists California license number 124950, 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. Medicare files from data.cms.gov. 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.