NPPES file of Aug 9, 2026

Alan C. Ta, M.D.

Adult Medicine Physician · Patton, CA

Alan C. Ta, M.D. is an adult medicine physician with a practice address in Patton, California, and NPI 1801093489, issued on Jun 28, 2007. Check the license (California A 070112, 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
1801093489
Name
Alan C. Ta
Credential
M.D.
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
A 070112 CA
Self-reported in NPPES; status is on the state search
Practice location
3102 E. Highland Avenue, Patton, CA 92369
Phone
(909) 425-7679
Enumerated
Jun 28, 2007
Record last updated
Mar 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(909) 425-6635
Medicare enrollment
Enrolled (PECOS I20110427000835); accepts Medicare assignment
Medical or professional school
University Of California, Irvine, California College Of Medicine, 1998
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3102 E. Highland Avenue

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

  1. Tim Alder, M.D.Psychiatry Physician1619929023
  2. Luminita Andronescu, M.D.Specialist1699856864
  3. Ai Li Arias, M.D.Psychiatry Physician1134171598
  4. Maurizio Assandri, PH.D.Psychologist1790807402
  5. Jasdeep Aulakh, M.D.Geriatric Psychiatry Physician1932153616
  6. Tamseela Awan, M.D.Internal Medicine Physician1720059413

Verify Alan C. Ta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A 070112
    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.

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99% fewer Medicare Part D claims than the average adult medicine physician in 2024

38 Medicare Part D claims, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D.

  1. Alan Ta38
  2. Specialty average3,002

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.

Bills Medicare through one group practice

  1. Department OF State HospitalsPatton, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Alan C. Ta among 386 adult medicine physician records in California

Alan C. Ta, M.D. is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 49% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 48% of these records are
  • Graduated1998 · median 2005 among the 187 with a school on file
  • Record last updated2015 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 adult medicine physician records list a practice address in Patton

They are 2 of the 339 NPPES records with a practice address in Patton, and 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Stephanie Nguyen, D.O.Patton, CA 923691114033388
  2. William Angkadjaja, MDRedlands, CA 923741871027722
  3. Lafayette Tylee, M.D.Victorville, CA 923951275612798
  4. Richelle Marracino, M.D.San Bernardino, CA 924071861602021
  5. Abigail Soto, MDSan Bernardino, CA 924101538592506
  6. Walker Felix, M.D.Colton, CA 923241760554893
  7. Mariela VentocillaTwentynine Palms, CA 922771972846756
  8. Nathan WilliamsThermal, CA 922741548345473

Common questions

What is Alan C. Ta, M.D.'s NPI number?

Alan C. Ta, M.D.'s National Provider Identifier (NPI) is 1801093489, issued on Jun 28, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Alan C. Ta, M.D. located?

The NPPES record lists a practice address at 3102 E. Highland Avenue, Patton, CA, 92369. Phone: (909) 425-7679. Providers update this record themselves, so call before visiting.

How can I verify Alan C. Ta, M.D.'s license?

NPPES lists California license number A 070112, 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 Alan C. Ta, M.D. prescribe under Medicare Part D?

In 2024, Alan C. Ta, M.D. had 38 Medicare Part D claims; the average among adult medicine physician prescribers was 3,002. 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.