KAREN YUNGJOO WHANG MD
NPI 1477668622
Surgery in Menlo Park, CA
About Karen Yungjoo Whang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN YUNGJOO WHANG MD (NPI 1477668622) is an individual surgery provider in Menlo Park, California, licensed in California (A69272) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Palo Alto, and is a graduate of Temple University School Of Medicine (1994).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Karen Yungjoo Whang 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
2Medicare enrollment records show Karen Whang reassigns Medicare billing to 2 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
Newark, CA 94560
- Reassigned Medicare billing, California enrollment
- 435 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 94025 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.
MENLO PARK, CA 94025
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 Karen Whang's NPI number?
The NPI number for Karen Whang is 1477668622. It was assigned to this individual provider in the NPPES registry on August 20, 2006.
Where is Karen Whang located?
Karen Whang practices at 1300 Crane St, Menlo Park, CA 94025. The listed phone number is (650) 498-7489.
What is Karen Whang's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Karen Whang enrolled in Medicare?
Yes. Karen Whang 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 Karen Whang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Whang reassigns Medicare benefits to 2 organizations: Stanford Health Care (Stanford, CA) and University Healthcare Alliance (Newark, 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 Karen Whang'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 Karen Whang was last updated on April 29, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Karen Yungjoo Whang, MD · NPI 1477668622
Surgery physician in Menlo Park, California. Individual provider, active in the CMS NPPES registry since August 20, 2006.
## Identity
- **NPI:** 1477668622 (Entity type: Individual)
- **Enumerated:** August 20, 2006
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** A69272 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1300 CRANE ST, Menlo Park, CA 94025-4260
- **Phone:** (650) 498-7489
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Stanford Health Care (NPI 1437292927, Stanford, CA); University Healthcare Alliance (NPI 1760531198, Newark, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Temple University School Of Medicine, class of 1994
## Record status
- **NPPES last updated:** April 29, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1477668622) · Data from the CMS NPPES public registry.