DR. CHRISTOPHER VIET NGUYEN M.D.
NPI 1497173587
Radiology - Diagnostic Radiology in Moreno Valley, CA

Active since April 04, 2014PECOS EnrolledAccepts Medicare Assignment
85.18/100
CMS Quality Rating
26520 CACTUS AVE, MORENO VALLEY, CA 92555(951) 486-4000 Get Directions Write a Review

NPPES record last updated: September 20, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 20, 2021, Jun 15, 2020 (2 updates tracked since 2020).

About Dr. Christopher Viet Nguyen M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. CHRISTOPHER VIET NGUYEN M.D. (NPI 1497173587) is an individual diagnostic radiology provider in Moreno Valley, California, licensed in California (A141105) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS and is a graduate of University Of California, Irvine, California College Of Medicine (2014).

NPPES Registry Identity

NPI1497173587
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameDR. CHRISTOPHER VIET NGUYENCredential: M.D.
Location Address26520 CACTUS AVEMoreno Valley, CA 92555-3927
Mailing Address127 ArdenIrvine, CA 92620-0294 · (949) 878-0501
Sole ProprietorNo
Medical School CMSUniversity Of California, Irvine, California College Of MedicineGraduated 2014
Enumeration DateApril 4, 2014
Last NPPES UpdateSeptember 20, 20212 updates tracked since enumeration
NPPES CertifiedSeptember 20, 2021
✔ NPI 1497173587 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 · A141105
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
26520 CACTUS AVE, Moreno Valley, CA 92555

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. Christopher Viet Nguyen 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 ID6800195215
PECOS Enrollment IDI20200129001880
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

3

Medicare enrollment records show Christopher Nguyen reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Clinical Pathology
26520 CACTUS AVE
Moreno Valley, CA 92555
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
Diagnostic Radiology
999 SAN BERNARDINO RD
Upland, CA 91786
  • Reassigned Medicare billing, California enrollment
  • 30 clinicians in this Medicare group
General Acute Care Hospital
1700 MOUNT VERNON AVENUE
Bakersfield, CA 93306
  • Reassigned Medicare billing, California enrollment
  • 532 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 38

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.
406 services305 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.
220 services209 patients
Mri scan of brain without contrast 70551
An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.
79 services79 patients
Mri scan of brain before and after contrast 70553
An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
68 services56 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
67 services66 patients
Ct scan of upper spine without contrast 72125
A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.
65 services64 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92555 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
$91.88 typical visit price
range $59.60 – $179.42
Typical copayment $22.97 (range $14.90 – $44.85)
Most-billed visit code 99203
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
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.

85.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.81
Promoting Interoperability82
Improvement Activities40
Cost64.54

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.

Student in an Organized Health Care Education/Training Program
26520 CACTUS AVE, FAMILY MEDICINE RESIDENCY PROGRAM
MORENO VALLEY, CA 92555
Pharmacist
26520 CACTUS AVE
MORENO VALLEY, CA 92555
Family Medicine
26520 CACTUS AVE
MORENO VALLEY, CA 92555
Clinic/Center (Primary Care)
26520 CACTUS AVE
MORENO VALLEY, CA 92555
Student in an Organized Health Care Education/Training Program
26520 CACTUS AVE
MORENO VALLEY, CA 92555
Pharmacist (Emergency Medicine)
26520 CACTUS AVE
MORENO VALLEY, CA 92555
Student in an Organized Health Care Education/Training Program
26520 CACTUS AVE
MORENO VALLEY, CA 92555
Pediatrics
26520 CACTUS AVE
MORENO VALLEY, CA 92555

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 Christopher Nguyen's NPI number?

The NPI number for Christopher Nguyen is 1497173587. It was assigned to this individual provider in the NPPES registry on April 4, 2014.

Where is Christopher Nguyen located?

Christopher Nguyen practices at 26520 Cactus Ave, Moreno Valley, CA 92555. The listed phone number is (951) 486-4000.

What is Christopher Nguyen's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Christopher Nguyen enrolled in Medicare?

Yes. Christopher Nguyen 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 Christopher Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Nguyen reassigns Medicare benefits to 3 organizations: Faculty Physicians And Surgeons Of Llusm (Moreno Valley, CA), San Antonio Radiological Medical (Upland, CA) and Kern County Hospital Authority (Bakersfield, 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 Christopher Nguyen'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 Christopher Nguyen was last updated on September 20, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.