DR. CINDY NGUYEN SIROIS M.D.
NPI 1093791733
Radiology - Diagnostic Radiology in Carmichael, CA

Active since December 15, 2005PECOS EnrolledAccepts Medicare Assignment
96.5/100
CMS Quality Rating
6305 COYLE AVE, CARMICHAEL, CA 95608(916) 535-2000(916) 408-8000 Get Directions Write a Review

NPPES record last updated: December 19, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 19, 2022, Nov 10, 2016 (2 updates tracked since 2016).

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

NPI1093791733
Entity TypeIndividualFemale
Primary Taxonomy2085R0202X
Provider Legal NameDR. CINDY NGUYEN SIROISCredential: M.D.
Location Address6305 COYLE AVECarmichael, CA 95608-0438
Mailing Address3400 Data DrRancho Cordova, CA 95670-7956
Fax(916) 408-8000
Sole ProprietorNo
Medical School CMSGeorge Washington University School Of MedicineGraduated 1998
Enumeration DateDecember 15, 2005
Last NPPES UpdateDecember 19, 20222 updates tracked since enumeration
NPPES CertifiedDecember 19, 2022
✔ NPI 1093791733 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
License✔ Licensed in CA · A71013
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
6305 COYLE AVE, Carmichael, CA 95608

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.

PECOS PAC ID9830177468
PECOS Enrollment IDI20040710000118, I20040827000372
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

8

Medicare 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.

Radiology
6305 COYLE AVE
Carmichael, CA 95608
  • Reassigned Medicare billing, California and Florida enrollments
  • Also billed through NPI 1700803418 (Florida)
  • 1,191 clinicians in this Medicare group
Diagnostic Radiology
18436 ROSCOE BLVD
Northridge, CA 91325
  • Reassigned Medicare billing, California and Florida enrollments
  • 224 clinicians in this Medicare group
Neuroradiology
525 N GARFIELD AVE
Monterey Park, CA 91754
  • Reassigned Medicare billing, Florida enrollment
  • Medicare enrollment name: Kc Tan MD Medical Corporation
Clinical Medical Laboratory
37868 US HIGHWAY 18
Prairie Du Chien, WI 53821
  • Reassigned Medicare billing, Wisconsin enrollment
  • 231 clinicians in this Medicare group
Radiology
1638 W SURF ST
Chicago, IL 60657
  • Reassigned Medicare billing, Illinois enrollment
  • 27 clinicians in this Medicare group
Rural
102 HOSPITAL CIRCLE
Donalsonville, GA 39845
  • Reassigned Medicare billing, Georgia enrollment
  • 101 clinicians in this Medicare group
Diagnostic Radiology
2020 PROFESSIONAL CENTER DR
Orange Park, FL 32073
  • Reassigned Medicare billing, Florida enrollment
  • 187 clinicians in this Medicare group
Radiology
1220 OAKFIELD DR
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.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
211 services201 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
172 services168 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
106 services105 patients
Ct scan of abdomen and pelvis without contrast 74176
A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.
44 services44 patients
Ct scan of blood vessels of head with contrast 70496
A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.
42 services41 patients
Ct scan of blood vessels of neck with contrast 70498
A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.
41 services40 patients

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.

New Patient
$92.61 typical visit price
range $60.44 – $180.85
Typical copayment $23.15 (range $15.11 – $45.21)
Most-billed visit code 99203
Established Patient
$75.03 typical visit price
range $19.88 – $148.15
Typical copayment $18.75 (range $4.97 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

96.5/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.34
Promoting Interoperability100
Improvement Activities40

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.

Radiology (Diagnostic Radiology)
6305 COYLE AVE
CARMICHAEL, CA 95608
Radiology (Vascular & Interventional Radiology)
6305 COYLE AVE
CARMICHAEL, CA 95608
Radiology (Diagnostic Radiology)
6305 COYLE AVE
CARMICHAEL, CA 95608
Radiology (Diagnostic Radiology)
6305 COYLE AVE
CARMICHAEL, CA 95608
Radiology (Vascular & Interventional Radiology)
6305 COYLE AVE
CARMICHAEL, CA 95608
Physician Assistant
6305 COYLE AVE
CARMICHAEL, CA 95608
Radiology (Diagnostic Radiology)
6305 COYLE AVE
CARMICHAEL, CA 95608
Radiology (Diagnostic Radiology)
6305 COYLE AVE
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.