Registry data as of Aug 27, 2026

Barton Ueki, M.D.

Gastroenterology Physician · Whittier, CA

Barton Ueki, M.D. is a gastroenterology physician with a practice address in Whittier, California, and NPI 1043219355, issued on Jul 19, 2005. Check the license (California A22592, 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
1043219355
Name
Barton Ueki
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
A22592 CA
Self-reported in NPPES; status is on the state search
Practice location
12486 Washington Blvd, Whittier, CA 90602
Phone
(562) 693-0756
Enumerated
Jul 19, 2005
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 12486 Washington Blvd

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

  1. Richard Parks, M.D.Cardiovascular Disease Physician1295734507

Verify Barton Ueki in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A22592
    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 →

12% more Medicare Part D claims than the average gastroenterology physician in 2024

953 Medicare Part D claims for 352 beneficiaries, against an average of 848 among the 13,066 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims. 20 claims were for opioids.

  1. Barton Ueki953
  2. Specialty average848

Most prescribed

  1. Gavilyte-G136 claims
  2. Dicyclomine Hcl59 claims
  3. Pantoprazole Sodium57 claims
  4. Famotidine55 claims
  5. Omeprazole50 claims
  6. Peg-3350 And Electrolytes34 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.

Industry payments in 2024: $421.53

20 payments, mostly food and beverage; the largest payer was Abbvie Inc.. The 10,593 providers of this specialty with any payment received $4,948.62 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Barton Ueki$421.53
  2. Specialty average$4,948.62

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

2 hospital and facility affiliations

  1. Prohealth Partners, A Medical GroupLakewood, CA
  2. Richard Parks MD A Prof CorpWhittier, CA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Gastroenterology Physician providers in California

There are 1,749 gastroenterology physician records in California.

Other gastroenterology physician records in California

  1. David Aarons, MDLodi, CA1619081379
  2. Constante Abaya, MDOxnard, CA1003918459
  3. Homan Abdollahzadeh, MDPalm Springs, CA1184634826
  4. John Abdulian, M.D.Fresno, CA1437114113
  5. Hussein Abidali, DORancho Cucamonga, CA1205274768
  6. Alaa Abousaif, MDOrange, CA1235124108
  7. Donald Abrahm, M.D.Newport Beach, CA1215022405
  8. Maria Abreu, M.D.West Hollywood, CA1598793374
  9. Safwat Absood, M.D.Modesto, CA1932113891
  10. Ronald Adamany, M.D.Mission Viejo, CA1992780688

Common questions

What is Barton Ueki, M.D.'s NPI number?

Barton Ueki, M.D.'s National Provider Identifier (NPI) is 1043219355, issued on Jul 19, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Barton Ueki, M.D. located?

The NPPES record lists a practice address at 12486 Washington Blvd, Whittier, CA, 90602. Phone: (562) 693-0756. Providers update this record themselves, so call before visiting.

How can I verify Barton Ueki, M.D.'s license?

NPPES lists California license number A22592, 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 Barton Ueki, M.D. prescribe under Medicare Part D?

In 2024, Barton Ueki, M.D. had 953 Medicare Part D claims for 352 beneficiaries; the average among gastroenterology physician prescribers was 848. Part D covers Medicare prescriptions only.

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.