ANDREW AN TRINH MD
NPI 1154905222
Psychiatry & Neurology - Psychiatry in Willimantic, CT
About Andrew An Trinh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW AN TRINH MD (NPI 1154905222) is an individual psychiatry provider in Willimantic, Connecticut, licensed in Connecticut (82481) and active in the NPI registry since May 2021. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of Connecticut School Of Medicine (2021).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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
Andrew An Trinh Md 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
3Medicare enrollment records show Andrew Trinh reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mansfield Center, CT 06250
- Reassigned Medicare billing, Connecticut enrollment
- 200 clinicians in this Medicare group
Norwich, CT 06360
- Reassigned Medicare billing, Connecticut enrollment
- 430 clinicians in this Medicare group
Willimantic, CT 06226
- Reassigned Medicare billing, Connecticut enrollment
- 302 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06226 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.
WILLIMANTIC, CT 06226
WILLIMANTIC, CT 06226
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 Andrew Trinh's NPI number?
The NPI number for Andrew Trinh is 1154905222. It was assigned to this individual provider in the NPPES registry on May 5, 2021.
Where is Andrew Trinh located?
Andrew Trinh practices at 112 Mansfield Ave, Willimantic, CT 06226. The listed phone number is (860) 456-9116.
What is Andrew Trinh's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Andrew Trinh enrolled in Medicare?
Yes. Andrew Trinh 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 Andrew Trinh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Trinh reassigns Medicare benefits to 3 organizations: Natchaug Hospital, Inc. (Mansfield Center, CT), William W Backus Hospital (Norwich, CT) and Windham Community Memorial Hospital, Inc. (Willimantic, CT). 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 Andrew Trinh'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 Andrew Trinh was last updated on October 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.
# Andrew An Trinh, MD · NPI 1154905222
Psychiatry physician in Willimantic, Connecticut. Individual provider, active in the CMS NPPES registry since May 5, 2021.
## Identity
- **NPI:** 1154905222 (Entity type: Individual)
- **Enumerated:** May 5, 2021
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 82481 (Connecticut)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 112 MANSFIELD AVE, Willimantic, CT 06226-2045
- **Phone:** (860) 456-9116
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Natchaug Hospital, Inc. (NPI 1295811321, Mansfield Center, CT); William W Backus Hospital (NPI 1730243536, Norwich, CT); Windham Community Memorial Hospital, Inc. (NPI 1023191467, Willimantic, CT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Connecticut School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** October 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1154905222) · Data from the CMS NPPES public registry.