GINA H CHEN MD
NPI 1497773808
Internal Medicine - Critical Care Medicine in Santa Rosa, CA
About Gina H Chen Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GINA H CHEN MD (NPI 1497773808) is an individual critical care medicine provider in Santa Rosa, California, licensed in California (A91042) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 4
Other Names 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gina H Chen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gina Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Vancouver, WA 98664
- Reassigned Medicare billing, Washington enrollment
- 915 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 95405 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.
SANTA ROSA, CA 95405
SANTA ROSA, CA 95405
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 Gina Chen's NPI number?
The NPI number for Gina Chen is 1497773808. It was assigned to this individual provider in the NPPES registry on July 17, 2006. The provider is also known as Gina Hui-Ying Chen MD.
Where is Gina Chen located?
Gina Chen practices at 1165 Montgomery Dr, Santa Rosa, CA 95405. The listed phone number is (707) 525-5300.
What is Gina Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Gina Chen enrolled in Medicare?
Yes. Gina Chen is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gina Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gina Chen reassigns Medicare benefits to 2 organizations: Inpatient Specialists Of California, PC (San Bernardino, CA) and South Sound Inpatient Physicians PLLC (Vancouver, WA). 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 Gina Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gina Chen accept?
Health plans from Anthem Blue Cross and Blue Shield list Gina Chen 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 Gina Chen was last updated on November 1, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Gina H Chen, MD · NPI 1497773808
Critical Care Medicine physician in Santa Rosa, California. Individual provider, active in the CMS NPPES registry since July 17, 2006.
## Identity
- **NPI:** 1497773808 (Entity type: Individual)
- **Enumerated:** July 17, 2006
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** A91042 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1165 MONTGOMERY DR, Santa Rosa, CA 95405-4801
- **Phone:** (707) 525-5300
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Inpatient Specialists Of California, PC (NPI 1952792475, San Bernardino, CA); South Sound Inpatient Physicians PLLC (NPI 1023285756, Vancouver, WA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 1, 2013
- **Other identifiers:** Medicare PIN H135310 (OH); Medicaid 0073821 (OH)
---
Source: [NPI Profile](https://npiprofile.com/npi/1497773808) · Data from the CMS NPPES public registry.