THIEN T TRAN CRNA
NPI 1700946977
Nurse Anesthetist, Certified Registered in Fontana, CA
About Thien T Tran Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THIEN T TRAN CRNA (NPI 1700946977) is an individual nurse anesthetist, certified registered in Fontana, California, licensed in California (NA3376) and active in the NPI registry since December 2006. He is a graduate of Other (2005).
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
Thien T Tran Crna 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
4Medicare enrollment records show Thien Tran reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Fontana, CA 92335
- Reassigned Medicare billing, California enrollment
- 5,228 clinicians in this Medicare group
Chino, CA 91710
- Reassigned Medicare billing, California enrollment
- 25 clinicians in this Medicare group
Fullerton, CA 92835
- Reassigned Medicare billing, California enrollment
- 8 clinicians in this Medicare group
Oxnard, CA 93036
- Reassigned Medicare billing, California enrollment
- 36 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 6
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92335 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FONTANA, CA 92335
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 Thien Tran's NPI number?
The NPI number for Thien Tran is 1700946977. It was assigned to this individual provider in the NPPES registry on December 11, 2006.
Where is Thien Tran located?
Thien Tran practices at 9961 Sierra Ave, Fontana, CA 92335. The listed phone number is (909) 427-3910.
What is Thien Tran's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Thien Tran enrolled in Medicare?
Yes. Thien Tran 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 Thien Tran's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thien Tran reassigns Medicare benefits to 4 organizations: Southern California Permanente Medical Group (Fontana, CA), Vasa Anesthesia Professional Corporation (Chino, CA), California Anesthesia Group PC (Fullerton, CA) and Credence Anesthesia Corporation (Oxnard, CA). 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 Thien Tran'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 Thien Tran was last updated on November 22, 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.
# Thien T Tran, CRNA · NPI 1700946977
Nurse Anesthetist, Certified Registered physician in Fontana, California. Individual provider, active in the CMS NPPES registry since December 11, 2006.
## Identity
- **NPI:** 1700946977 (Entity type: Individual)
- **Enumerated:** December 11, 2006
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** NA3376 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9961 SIERRA AVE, Fontana, CA 92335-6720
- **Phone:** (909) 427-3910
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Southern California Permanente Medical Group (NPI 1689606196, Fontana, CA); Vasa Anesthesia Professional Corporation (NPI 1356108831, Chino, CA); California Anesthesia Group PC (NPI 1477114742, Fullerton, CA); Credence Anesthesia Corporation (NPI 1881381002, Oxnard, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2005
## Record status
- **NPPES last updated:** November 22, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1700946977) · Data from the CMS NPPES public registry.