DR. REX W HUANG MD
NPI 1467636662
Psychiatry & Neurology - Child & Adolescent Psychiatry in Redwood City, CA
About Dr. Rex W Huang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. REX W HUANG MD (NPI 1467636662) is an individual child & adolescent psychiatry provider in Redwood City, California, licensed in California (A104286) and active in the NPI registry since December 2007. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Rex W Huang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Rex Huang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 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 10
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
REDWOOD CITY, CA 94063
REDWOOD CITY, CA 94063
REDWOOD CITY, CA 94063
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 Rex Huang's NPI number?
The NPI number for Rex Huang is 1467636662. It was assigned to this individual provider in the NPPES registry on December 24, 2007.
Where is Rex Huang located?
Rex Huang practices at 1400 Veterans Blvd Fl 4, Redwood City, CA 94063. The listed phone number is (650) 299-4748.
What is Rex Huang's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Child & Adolescent Psychiatry, with taxonomy code 2084P0804X.
Is Rex Huang enrolled in Medicare?
Yes. Rex Huang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Rex Huang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rex Huang reassigns Medicare benefits to Permanente Medical Group Inc (Redwood City, CA). 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 Rex Huang'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 Rex Huang was last updated on November 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.