DONALD E TSAI MD
NPI 1811930100
Internal Medicine - Medical Oncology in Philadelphia, PA
About Donald E Tsai Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DONALD E TSAI MD (NPI 1811930100) is an individual medical oncology provider in Philadelphia, Pennsylvania, licensed in Pennsylvania (MD059670L) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Donald E Tsai Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Donald Tsai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Philadelphia, PA 19104
- Reassigned Medicare billing, Pennsylvania enrollment
- 373 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 19104 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
PHILADELPHIA, PA 19104
PHILADELPHIA, PA 19104
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 Donald Tsai's NPI number?
The NPI number for Donald Tsai is 1811930100. It was assigned to this individual provider in the NPPES registry on June 14, 2006.
Where is Donald Tsai located?
Donald Tsai practices at 3400 Spruce St 15 Penn Tower, Philadelphia, PA 19104. The listed phone number is (215) 662-3914.
What is Donald Tsai's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.
Is Donald Tsai enrolled in Medicare?
Yes. Donald Tsai is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Donald Tsai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Tsai reassigns Medicare benefits to University Of Penn-Medical Group (Philadelphia, PA). 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 Donald Tsai'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 Donald Tsai was last updated on May 4, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Donald E Tsai, MD · NPI 1811930100
Medical Oncology physician in Philadelphia, Pennsylvania. Individual provider, active in the CMS NPPES registry since June 14, 2006.
## Identity
- **NPI:** 1811930100 (Entity type: Individual)
- **Enumerated:** June 14, 2006
- **Primary specialty:** Internal Medicine - Medical Oncology · taxonomy 207RX0202X
- **State license:** MD059670L (Pennsylvania)
- **Sole proprietor:** No
## Practice location
- **Address:** 3400 SPRUCE ST, 15 PENN TOWER, Philadelphia, PA 19104
- **Phone:** (215) 662-3914
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** University Of Penn-Medical Group (NPI 1679677975, Philadelphia, PA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 4, 2011
- **Other identifiers:** Medicare UPIN H14760; Medicare ID-Type Unspecified 037511 (PA); Medicaid 0017976560001 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1811930100) · Data from the CMS NPPES public registry.