YI-PING JOSEPH WOO MD
NPI 1043240120
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Palo Alto, CA
About Yi-ping Joseph Woo Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
YI-PING JOSEPH WOO MD (NPI 1043240120) is an individual thoracic surgery (cardiothoracic vascular surgery) provider in Palo Alto, California, licensed in California (G128440) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Perelman School Of Med At The University Of Pennsylvania (1992).
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 and accepts Medicare assignment
Yi-ping Joseph Woo 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 Yi-ping Woo reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Stanford, CA 94305
- Reassigned Medicare billing, California enrollment
- 4,258 clinicians in this Medicare group
Palo Alto, CA 94306
- Reassigned Medicare billing, California enrollment
- 2,460 clinicians in this Medicare group
Belmont, CA 94002
- Reassigned Medicare billing, California enrollment
- 1,191 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 7
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 94305 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.
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.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
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 Yi-ping Woo's NPI number?
The NPI number for Yi-ping Woo is 1043240120. It was assigned to this individual provider in the NPPES registry on July 4, 2006.
Where is Yi-ping Woo located?
Yi-ping Woo practices at 300 Pasteur Dr, Palo Alto, CA 94305. The listed phone number is (650) 825-3828.
What is Yi-ping Woo's specialty?
The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.
Is Yi-ping Woo enrolled in Medicare?
Yes. Yi-ping Woo 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 Yi-ping Woo's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yi-ping Woo reassigns Medicare benefits to 3 organizations: Stanford Health Care (Stanford, CA), County Of Santa Clara (Palo Alto, CA) and Dignity Health Medical Foundation (Belmont, 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 Yi-ping Woo'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 Yi-ping Woo was last updated on January 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Yi-Ping Joseph Woo, MD · NPI 1043240120
Thoracic Surgery (Cardiothoracic Vascular Surgery) physician in Palo Alto, California. Individual provider, active in the CMS NPPES registry since July 4, 2006.
## Identity
- **NPI:** 1043240120 (Entity type: Individual)
- **Enumerated:** July 4, 2006
- **Primary specialty:** Thoracic Surgery (Cardiothoracic Vascular Surgery) · taxonomy 208G00000X
- **State license:** G128440 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Palo Alto, CA 94305-2200
- **Phone:** (650) 825-3828
## 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): Stanford Health Care (NPI 1437292927, Stanford, CA); County Of Santa Clara (NPI 1144330614, Palo Alto, CA); Dignity Health Medical Foundation (NPI 1174531859, Belmont, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Perelman School Of Med At The University Of Pennsylvania, class of 1992
## Record status
- **NPPES last updated:** January 16, 2014
- **Other identifiers:** Medicare UPIN H55986; Medicare PIN 055503 (PA); Medicaid 0018761230003 (PA)
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Source: [NPI Profile](https://npiprofile.com/npi/1043240120) · Data from the CMS NPPES public registry.