NATARAJ SHANMUGAM M.D.
NPI 1659535102
Radiology - Diagnostic Radiology in Sacramento, CA

Active since July 14, 2008PECOS EnrolledAccepts Medicare Assignment
96.5/100
CMS Quality Rating
3000 Q ST FL 1, SACRAMENTO, CA 95816(916) 733-3301(916) 281-3882 Get Directions Write a Review

NPPES record last updated: February 11, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 11, 2020, Feb 1, 2017 (2 updates tracked since 2017).

About Nataraj Shanmugam M.d. NPPES

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

NATARAJ SHANMUGAM M.D. (NPI 1659535102) is an individual diagnostic radiology provider in Sacramento, California, licensed in California (A115371) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS and is a graduate of Other (2000).

NPPES Registry Identity

NPI1659535102
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameNATARAJ SHANMUGAMCredential: M.D.
Location Address3000 Q ST FL 1Sacramento, CA 95816-7058
Mailing Address3400 Data Dr, Radiology, 2nd Floor/adminRancho Cordova, CA 95670-7956 · (916) 363-3317
Fax(916) 281-3882
Sole ProprietorYes
Medical School CMSOtherGraduated 2000
Enumeration DateJuly 14, 2008
Last NPPES UpdateFebruary 11, 20202 updates tracked since enumeration
✔ NPI 1659535102 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses✔ Licensed in CA · A115371✔ Licensed in AZ · 42869
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
Also ListedNuclear MedicineTaxonomy 207U00000X · License A115371 (CA)
3000 Q ST FL 1, Sacramento, CA 95816

Other Identifiers 3

OtherZ137927AZ · Medicare Ptan For Mdig-yuma
Medicaid524526AZ
OtherA115371CA · Medical License

Accepted Insurance

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

Nataraj Shanmugam 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 ID8628109378
PECOS Enrollment IDI20111031000118
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 Reassignment

Medicare enrollment records show Nataraj Shanmugam reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Multi-Specialty
3000 Q ST
Sacramento, CA 95816
  • Reassigned Medicare billing, California enrollment
  • 1,191 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 106

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.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
3,950 services40 patients
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.
918 services793 patients
Nuclear medicine studies of heart muscle at rest and with stress and spect 78452
Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.
369 services368 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.
336 services328 patients
X-ray of shoulder, minimum of 2 views 73030
An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.
214 services177 patients
X-ray of hip, 2-3 views 73502
An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.
214 services206 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95816 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.

Family Medicine
3000 Q ST FL 1
SACRAMENTO, CA 95816
Radiology (Diagnostic Radiology)
3000 Q ST FL 1
SACRAMENTO, CA 95816
Physician Assistant (Medical)
3000 Q ST FL 1
SACRAMENTO, CA 95816
Physician Assistant
3000 Q ST FL 1
SACRAMENTO, CA 95816
Radiology (Diagnostic Radiology)
3000 Q ST FL 1
SACRAMENTO, CA 95816
Family Medicine
3000 Q ST FL 1
SACRAMENTO, CA 95816
Family Medicine
3000 Q ST FL 1
SACRAMENTO, CA 95816
Radiology (Diagnostic Radiology)
3000 Q ST FL 1
SACRAMENTO, CA 95816

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 Nataraj Shanmugam's NPI number?

The NPI number for Nataraj Shanmugam is 1659535102. It was assigned to this individual provider in the NPPES registry on July 14, 2008.

Where is Nataraj Shanmugam located?

Nataraj Shanmugam practices at 3000 Q St Fl 1, Sacramento, CA 95816. The listed phone number is (916) 733-3301.

What is Nataraj Shanmugam's specialty?

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

Is Nataraj Shanmugam enrolled in Medicare?

Yes. Nataraj Shanmugam 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 organization bills Medicare for Nataraj Shanmugam's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nataraj Shanmugam reassigns Medicare benefits to Dignity Health Medical Foundation (Sacramento, CA). The 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 Nataraj Shanmugam's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nataraj Shanmugam accept?

Health plans from Cigna HealthCare of Arizona, Inc list Nataraj Shanmugam 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 Nataraj Shanmugam was last updated on February 11, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.