GERALD WANG DO
NPI 1639630874
Surgery - Surgical Critical Care in Stanford, CA
About Gerald Wang Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GERALD WANG DO (NPI 1639630874) is an individual surgical critical care provider in Stanford, California, licensed in California (20A22368) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).
NPPES Registry Identity
Specialties & Licenses
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
Gerald Wang Do 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 Gerald Wang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Phoenix, AZ 85012
- Reassigned Medicare billing, Arizona enrollment
- 553 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.
Other Providers at the Same Location NPPES 4
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
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 Gerald Wang's NPI number?
The NPI number for Gerald Wang is 1639630874. It was assigned to this individual provider in the NPPES registry on March 29, 2019.
Where is Gerald Wang located?
Gerald Wang practices at 300 Pasteur Dr Rm H3680, Stanford, CA 94305. The listed phone number is (650) 723-5948.
What is Gerald Wang's specialty?
The primary specialty registered for this NPI is Surgery, specializing in Surgical Critical Care, with taxonomy code 2086S0102X.
Is Gerald Wang enrolled in Medicare?
Yes. Gerald Wang 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 Gerald Wang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gerald Wang reassigns Medicare benefits to Banner - University Physician Specialists LLC (Phoenix, AZ). 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 Gerald Wang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gerald Wang accept?
Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Gerald Wang 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.
When was this NPI record last updated?
The NPPES record for Gerald Wang was last updated on August 5, 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.
# Gerald Wang, DO · NPI 1639630874
Surgical Critical Care physician in Stanford, California. Individual provider, active in the CMS NPPES registry since March 29, 2019.
## Identity
- **NPI:** 1639630874 (Entity type: Individual)
- **Enumerated:** March 29, 2019
- **Primary specialty:** Surgery - Surgical Critical Care · taxonomy 2086S0102X
- **State license:** 20A22368 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 300 PASTEUR DR RM H3680, Stanford, CA 94305-2200
- **Phone:** (650) 723-5948
## 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:** Banner - University Physician Specialists LLC (NPI 1417312760, Phoenix, AZ), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2019
## Record status
- **NPPES last updated:** August 5, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1639630874) · Data from the CMS NPPES public registry.