TRISTYN VERONIQUE ST. THOMAS-ACHOJA
NPI 1306256490
Anesthesiology in Anaheim, CA
About Tristyn Veronique St. Thomas-achoja NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TRISTYN VERONIQUE ST. THOMAS-ACHOJA (NPI 1306256490) is an individual anesthesiology provider in Anaheim, California, licensed in California (A160843) and active in the NPI registry since April 2014. She is enrolled in Medicare PECOS and is a graduate of Meharry Medical College School Of Medicine (2014).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Tristyn Veronique St. Thomas-achoja is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
6Medicare enrollment records show Tristyn St. Thomas-achoja reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Anaheim, CA 92801
- Reassigned Medicare billing, California enrollment
- 73 clinicians in this Medicare group
Anaheim, CA 92801
- Reassigned Medicare billing, California enrollment
Fullerton, CA 92833
- Reassigned Medicare billing, California enrollment
- 13,921 clinicians in this Medicare group
Orange, CA 92869
- Reassigned Medicare billing, California enrollment
- 168 clinicians in this Medicare group
Van Nuys, CA 91405
- Reassigned Medicare billing, California enrollment
- 48 clinicians in this Medicare group
- Reassigned Medicare billing, California enrollment
- 420 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Tristyn St. Thomas-achoja's NPI number?
The NPI number for Tristyn St. Thomas-achoja is 1306256490. It was assigned to this individual provider in the NPPES registry on April 29, 2014.
Where is Tristyn St. Thomas-achoja located?
Tristyn St. Thomas-achoja practices at 1211 W La Palma Ave Ste 209, Anaheim, CA 92801. The listed phone number is (877) 594-2787.
What is Tristyn St. Thomas-achoja's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Tristyn St. Thomas-achoja enrolled in Medicare?
Yes. Tristyn St. Thomas-achoja is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Tristyn St. Thomas-achoja's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tristyn St. Thomas-achoja reassigns Medicare benefits to 6 organizations: Anesthesia Specialists Of Orange County, Inc. (Anaheim, CA), Tristyn St Thomas-Achoja, MD, Inc, A Professional Medical Corporation (Anaheim, CA), Southern California Permanente Medical Group (Fullerton, CA), Orange Coast Anesthesia Inc (Orange, CA), Vp Anesthesia Partners, Inc (Van Nuys, CA) and 1 more organization, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Tristyn St. Thomas-achoja's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Tristyn St. Thomas-achoja was last updated on December 30, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Tristyn Veronique St. Thomas-Achoja · NPI 1306256490
Anesthesiology physician in Anaheim, California. Individual provider, active in the CMS NPPES registry since April 29, 2014.
## Identity
- **NPI:** 1306256490 (Entity type: Individual)
- **Enumerated:** April 29, 2014
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** A160843 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1211 W LA PALMA AVE STE 209, Anaheim, CA 92801-2802
- **Phone:** (877) 594-2787
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 6 organizations under Medicare reassignment (form CMS-855R): Anesthesia Specialists Of Orange County, Inc. (NPI 1134311319, Anaheim, CA); Tristyn St Thomas-Achoja, MD, Inc, A Professional Medical Corporation (NPI 1093475303, Anaheim, CA); Southern California Permanente Medical Group (NPI 1336556059, Fullerton, CA); Orange Coast Anesthesia Inc (NPI 1508138256, Orange, CA); Vp Anesthesia Partners, Inc (NPI 1518694173, Van Nuys, CA); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Meharry Medical College School Of Medicine, class of 2014
## Record status
- **NPPES last updated:** December 30, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1306256490) · Data from the CMS NPPES public registry.