NPPES file of Aug 9, 2026

Tristyn Veronique St. Thomas-Achoja

Anesthesiology Physician · Anaheim, CA

Tristyn Veronique St. Thomas-Achoja is an anesthesiology physician with a practice address in Anaheim, California, and NPI 1306256490, issued on Apr 29, 2014. Check the license (California A160843, 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
1306256490
Name
Tristyn Veronique St. Thomas-Achoja
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A160843 CA
Self-reported in NPPES; status is on the state search
Practice location
1211 W LA Palma Ave Ste 209, Anaheim, CA 92801
Phone
(877) 594-2787
Enumerated
Apr 29, 2014
Record last updated
Dec 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190830000968); accepts Medicare assignment
Medical or professional school
Meharry Medical College School Of Medicine, 2014
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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Verify Tristyn Veronique St. Thomas-Achoja in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A160843
    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

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94% fewer Medicare Part D claims than the average anesthesiology physician in 2024

25 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 48% of claims.

  1. Tristyn St. Thomas-Achoja25
  2. Specialty average402

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: $226.12

2 payments; by number, the most common kind was food and beverage; the largest payer was Fisher & Paykel Healthcare Inc. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Tristyn St. Thomas-Achoja$226.12
  2. Specialty average$669.59

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

Bills Medicare through 2 group practices

  1. Anesthesia Specialists OF Orange County IncAnaheim, CA
  2. Orange Coast Anesthesia IncPlacentia, CA

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

Tristyn Veronique St. Thomas-Achoja among 7,571 anesthesiology physician records in California

Tristyn Veronique St. Thomas-Achoja is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 76% of them.

  • NPI issued2014 · 76% of these records are older, 22% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2014 · median 2006 among the 4,868 with a school on file
  • Record last updated2021 · 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 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Ruke Achoja, MDAnaheim, CA 928011700143914
  2. Jason Chua, M.D.Anaheim, CA 928011164611695
  3. Edgat Cosme, M.D.Anaheim, CA 928011750587382
  4. Ernesto Gidaya, MDAnaheim, CA 928011003873522
  5. Trang Hoang, M.D.Anaheim, CA 928011699783993
  6. Frederick Jacobson, M.D.Anaheim, CA 928011265478127
  7. Maureen Li, M.D.Anaheim, CA 928011083868152
  8. Avery Mittman, M.D.Anaheim, CA 928011407929375

Common questions

What is Tristyn Veronique St. Thomas-Achoja's NPI number?

Tristyn Veronique St. Thomas-Achoja's National Provider Identifier (NPI) is 1306256490, issued on Apr 29, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Tristyn Veronique St. Thomas-Achoja located?

The NPPES record lists a practice address at 1211 W LA Palma Ave Ste 209, Anaheim, CA, 92801. Phone: (877) 594-2787. Providers update this record themselves, so call before visiting.

How can I verify Tristyn Veronique St. Thomas-Achoja's license?

NPPES lists California license number A160843, 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 Tristyn Veronique St. Thomas-Achoja prescribe under Medicare Part D?

In 2024, Tristyn Veronique St. Thomas-Achoja had 25 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. 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.