DR. UNNI K UDAYASANKAR MD
NPI 1568647253
Radiology - Pediatric Radiology in Tucson, AZ

Active since January 01, 2008PECOS EnrolledAccepts Medicare Assignment
97.64/100
CMS Quality Rating
1625 N CAMPBELL AVE, TUCSON, AZ 85719(520) 694-0111 Get Directions Write a Review

NPPES record last updated: July 22, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Unni K Udayasankar Md NPPES

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

DR. UNNI K UDAYASANKAR MD (NPI 1568647253) is an individual pediatric radiology provider in Tucson, Arizona, licensed in Arizona (49896) and active in the NPI registry since January 2008. He is enrolled in Medicare PECOS, maintains a secondary practice location in Tucson, and is a graduate of Other (2000).

NPPES Registry Identity

NPI1568647253
Entity TypeIndividualMale
Primary Taxonomy2085P0229X
Provider Legal NameDR. UNNI K UDAYASANKARCredential: MD
Location Address1625 N CAMPBELL AVETucson, AZ 85719-4330
Mailing Address1625 N Campbell AveTucson, AZ 85719-4330 · (520) 694-0111
Sole ProprietorNo
Medical School CMSOtherGraduated 2000
Enumeration DateJanuary 1, 2008
Last NPPES UpdateJuly 22, 2025
NPPES CertifiedJuly 22, 2025
✔ NPI 1568647253 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Pediatric RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085P0229X
License✔ Licensed in AZ · 49896
Definition
A radiologist who is proficient in all forms of diagnostic imaging as it pertains to the treatment of diseases in the newborn, infant, child and adolescent. This specialist has knowledge of both imaging and interventional procedures related to the care and management of diseases of children. A pediatric radiologist must be highly knowledgeable of all organ systems as they relate to growth and development, congenital malformations, diseases peculiar to infants and children and diseases that begin in childhood but cause substantial residual impairment in adulthood.
Also ListedRadiology · NeuroradiologyTaxonomy 2085N0700X · License 49896 (AZ)
1625 N CAMPBELL AVE, Tucson, AZ 85719

Secondary Practice Location 1

Location 14291 N Campbell AveTucson, AZ 85719-1117 · Phone (520) 694-9640

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

Dr. Unni K Udayasankar Md 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 ID6800927617
PECOS Enrollment IDI20150709003119
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 Unni Udayasankar reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nutrition, Education
535 N WILMOT RD STE 101
Tucson, AZ 85711
  • Reassigned Medicare billing, Arizona enrollment
  • 1,514 clinicians in this Medicare group
Multi-Specialty
37100 N GANTZEL RD STE 214
San Tan Valley, AZ 85140
  • Reassigned Medicare billing, Arizona enrollment
  • 188 clinicians in this Medicare group
General Acute Care Hospital
2901 N CENTRAL AVE STE 160
Phoenix, AZ 85012
  • Reassigned Medicare billing, Arizona enrollment
  • 728 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 12

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.

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.
163 services155 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.
66 services63 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.
51 services50 patients
Ct scan of lower spine without contrast 72131
A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.
40 services40 patients
Ct scan of middle spine without contrast 72128
A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.
38 services38 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.
31 services31 patients

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.

97.64/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality84.77
Promoting Interoperability98.67
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.

Pediatrics
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Pediatrics
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Physician Assistant
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Nurse Practitioner (Acute Care)
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Emergency Medicine
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Emergency Medical Technician, Paramedic
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Anesthesiology
1625 N CAMPBELL AVE
TUCSON, AZ 85719
Radiology (Diagnostic Radiology)
1625 N CAMPBELL AVE
TUCSON, AZ 85719

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 Unni Udayasankar's NPI number?

The NPI number for Unni Udayasankar is 1568647253. It was assigned to this individual provider in the NPPES registry on January 1, 2008.

Where is Unni Udayasankar located?

Unni Udayasankar practices at 1625 N Campbell Ave, Tucson, AZ 85719. The listed phone number is (520) 694-0111.

What is Unni Udayasankar's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Pediatric Radiology, with taxonomy code 2085P0229X.

Is Unni Udayasankar enrolled in Medicare?

Yes. Unni Udayasankar 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 Unni Udayasankar's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Unni Udayasankar reassigns Medicare benefits to 3 organizations: Banner-University Medical Group (Tucson, AZ), Banner Physician Super Specialists Arizona LLC (San Tan Valley, AZ) and Banner - University Hospital Based Physicians LLC (Phoenix, AZ). 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 Unni Udayasankar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Unni Udayasankar accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Blue Cross Blue Shield of Arizona and Oscar Health Plan, Inc. list Unni Udayasankar 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 Unni Udayasankar was last updated on July 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.