THOMAS CHEN-CHIA TSAI MD
NPI 1053636217
Surgery in Boston, MA
About Thomas Chen-chia Tsai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
THOMAS CHEN-CHIA TSAI MD (NPI 1053636217) is an individual surgery provider in Boston, Massachusetts, licensed in Massachusetts (252541) and active in the NPI registry since March 2010. He is enrolled in Medicare PECOS, is affiliated with Brigham And Women's Hospital, and is a graduate of Stanford University School Of Medicine (2010).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Thomas Chen-chia Tsai 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 Reassignment
Medicare enrollment records show Thomas Tsai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 4,574 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 5
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Brigham And Women's Hospital
Acute Care Hospitals · Boston, MAFaulkner Hospital-Brigham And Women's
Acute Care Hospitals · Boston, MAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Thomas Tsai's NPI number?
The NPI number for Thomas Tsai is 1053636217. It was assigned to this individual provider in the NPPES registry on March 31, 2010.
Where is Thomas Tsai located?
Thomas Tsai practices at 15 Parkman St, Boston, MA 02114. The listed phone number is (617) 726-1893.
What is Thomas Tsai's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Thomas Tsai enrolled in Medicare?
Yes. Thomas Tsai 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 organization bills Medicare for Thomas Tsai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Tsai reassigns Medicare benefits to Brigham & Womens Physicians Organization Inc (Boston, MA). The 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 Thomas Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Thomas Tsai accept?
Health plans from Taro Health list Thomas Tsai as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Thomas Tsai affiliated with any hospitals?
According to CMS data, Thomas Tsai is affiliated with Brigham And Women's Hospital and Faulkner Hospital-Brigham And Women's.
When was this NPI record last updated?
The NPPES record for Thomas Tsai was last updated on May 2, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Thomas Chen-Chia Tsai, MD · NPI 1053636217
Surgery physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 31, 2010.
## Identity
- **NPI:** 1053636217 (Entity type: Individual)
- **Enumerated:** March 31, 2010
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 252541 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 15 PARKMAN ST, Boston, MA 02114-3117
- **Phone:** (617) 726-1893
## 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:** Brigham & Womens Physicians Organization Inc (NPI 1033535497, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Stanford University School Of Medicine, class of 2010
## Record status
- **NPPES last updated:** May 2, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1053636217) · Data from the CMS NPPES public registry.