DR. CINDY NGUYEN SIROIS M.D.
NPI 1093791733
Radiology - Diagnostic Radiology in Carmichael, CA
About Dr. Cindy Nguyen Sirois M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CINDY NGUYEN SIROIS M.D. (NPI 1093791733) is an individual diagnostic radiology provider in Carmichael, California, licensed in California (A71013) and active in the NPI registry since December 2005. She is enrolled in Medicare PECOS and is a graduate of George Washington University School Of Medicine (1998).
NPPES Registry Identity
Specialties & Licenses
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
Dr. Cindy Nguyen Sirois M.d. 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
8Medicare enrollment records show Cindy Sirois reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Carmichael, CA 95608
- Reassigned Medicare billing, California and Florida enrollments
- Also billed through NPI 1700803418 (Florida)
- 1,191 clinicians in this Medicare group
Northridge, CA 91325
- Reassigned Medicare billing, California and Florida enrollments
- 224 clinicians in this Medicare group
Monterey Park, CA 91754
- Reassigned Medicare billing, Florida enrollment
- Medicare enrollment name: Kc Tan MD Medical Corporation
Prairie Du Chien, WI 53821
- Reassigned Medicare billing, Wisconsin enrollment
- 231 clinicians in this Medicare group
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 27 clinicians in this Medicare group
Donalsonville, GA 39845
- Reassigned Medicare billing, Georgia enrollment
- 101 clinicians in this Medicare group
Orange Park, FL 32073
- Reassigned Medicare billing, Florida enrollment
- 187 clinicians in this Medicare group
Brandon, FL 33511
- Reassigned Medicare billing, Florida enrollment
- 135 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 14
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 95608 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
CARMICHAEL, CA 95608
CARMICHAEL, CA 95608
CARMICHAEL, CA 95608
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 Cindy Sirois's NPI number?
The NPI number for Cindy Sirois is 1093791733. It was assigned to this individual provider in the NPPES registry on December 15, 2005.
Where is Cindy Sirois located?
Cindy Sirois practices at 6305 Coyle Ave, Carmichael, CA 95608. The listed phone number is (916) 535-2000.
What is Cindy Sirois's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Cindy Sirois enrolled in Medicare?
Yes. Cindy Sirois 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 Cindy Sirois's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cindy Sirois reassigns Medicare benefits to 8 organizations: Dignity Health Medical Foundation (Carmichael, CA), Renaissance Imaging Medical Associates, Inc. (Northridge, CA), Kc Tan, M.D. Medical Corporation (Monterey Park, CA), Prairie Du Chien Memorial Hospital Association Inc (Prairie Du Chien, WI), Spectrum Imaging Sc (Chicago, IL) and 3 more organizations, listed in the Medicare section above. 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 Cindy Sirois'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 Cindy Sirois was last updated on December 19, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.