GIANVIEVE SCHWIRBLAT
NPI 1568010312
Nurse Practitioner - Family in Grass Valley, CA
About Gianvieve Schwirblat NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GIANVIEVE SCHWIRBLAT (NPI 1568010312) is an individual family provider in Grass Valley, California, licensed in California (95013417) and active in the NPI registry since August 2019. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Gianvieve Schwirblat is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Gianvieve Schwirblat reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Grass Valley, CA 95945
- Reassigned Medicare billing, California enrollment
- 44 clinicians in this Medicare group
Willow Creek, CA 95573
- Reassigned Medicare billing, California enrollment
- 175 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
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 95945 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.
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
GRASS VALLEY, CA 95945
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 Gianvieve Schwirblat's NPI number?
The NPI number for Gianvieve Schwirblat is 1568010312. It was assigned to this individual provider in the NPPES registry on August 26, 2019.
Where is Gianvieve Schwirblat located?
Gianvieve Schwirblat practices at 844 Old Tunnel Rd, Grass Valley, CA 95945. The listed phone number is (530) 274-9762.
What is Gianvieve Schwirblat's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Gianvieve Schwirblat enrolled in Medicare?
Yes. Gianvieve Schwirblat is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Gianvieve Schwirblat's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gianvieve Schwirblat reassigns Medicare benefits to 2 organizations: Western Sierra Medical Clinic, Inc. (Grass Valley, CA) and Open Door Community Health Centers (Willow Creek, 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 Gianvieve Schwirblat'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 Gianvieve Schwirblat was last updated on April 30, 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.
# Gianvieve Schwirblat · NPI 1568010312
Family physician in Grass Valley, California. Individual provider, active in the CMS NPPES registry since August 26, 2019.
## Identity
- **NPI:** 1568010312 (Entity type: Individual)
- **Enumerated:** August 26, 2019
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95013417 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 844 OLD TUNNEL RD, Grass Valley, CA 95945-8524
- **Phone:** (530) 274-9762 · **Fax:** (530) 273-7255
## 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): Western Sierra Medical Clinic, Inc. (NPI 1063496396, Grass Valley, CA); Open Door Community Health Centers (NPI 1730330739, Willow Creek, CA) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 30, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1568010312) · Data from the CMS NPPES public registry.