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


Quality Rating: 88.66 out of 100 score

NPI Status: Active since January 01, 2008

Contact Information

1625 N CAMPBELL AVE
TUCSON, AZ
ZIP 85719
Phone: (520) 694-0111

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  • Individual
  • Male
  • Years of Experience 26
  • Radiology
  • Pediatric Radiology
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About UNNI UDAYASANKAR

This page provides the complete NPI Profile along with additional information for Unni Udayasankar, a provider established in Tucson, Arizona with a medical specialization in Radiology, focusing in pediatric radiology and more than 26 years of experience. The healthcare provider is registered in the NPI registry with number 1568647253 assigned on January 2008. The practitioner's primary taxonomy code is 2085P0229X with license number 49896 (AZ). The provider is registered as an individual and his NPI record was last updated July 2025.

NPI
1568647253
Provider Name
DR. UNNI K UDAYASANKAR MD
Gender
Male
Entity Type
Individual
Location Address
1625 N CAMPBELL AVE TUCSON, AZ 85719
Location Phone
(520) 694-0111
Mailing Address
1625 N CAMPBELL AVE TUCSON, AZ 85719
Mailing Phone
(520) 694-0111
Medical School Name
OTHER
Graduation Year
2000
Is Sole Proprietor?
No
Enumeration Date
01-01-2008
Last Update Date
07-22-2025
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Location Map

Secondary Locations

  • 4291 N Campbell Ave
    Tucson, AZ 85719
    (520) 694-9640

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Radiology Pediatric Radiology

Taxonomy Code
2085P0229X
Type
Allopathic & Osteopathic Physicians
License No.
49896
License State
AZ
Taxonomy Description
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
12085N0700XAllopathic & Osteopathic Physicians

Radiology
Neuroradiology

49896 (AZ)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Choice Bronze HSA - HMO
  • Choice Bronze HSA + Vision + Adult Dental - HMO
  • Clear Silver - HMO
  • Complete Gold - HMO
  • Complete Gold + Vision + Adult Dental - HMO
  • Complete Silver - HMO
  • Complete Silver + Vision + Adult Dental - HMO
  • Elite Gold - HMO
  • Elite Gold + Vision + Adult Dental - HMO
  • Everyday Bronze - HMO
  • Everyday Bronze + Vision + Adult Dental - HMO
  • Standard Expanded Bronze - HMO
  • Standard Expanded Bronze + Vision + Adult Dental - HMO
  • Standard Gold - HMO
  • Standard Gold + Vision + Adult Dental - HMO
  • Standard Silver - HMO
  • Standard Silver + Vision + Adult Dental - HMO
  • Blue AdvanceHealth Bronze - Neighborhood Network - HMO
  • Blue AdvanceHealth Gold - Neighborhood Network - HMO
  • Blue AdvanceHealth Silver - Neighborhood Network - HMO
  • Blue EverydayHealth Gold - Neighborhood Network - HMO
  • Blue EverydayHealth Silver - Neighborhood Network - HMO
  • Blue Portfolio HSA Bronze - Neighborhood Network - HMO
  • Blue Portfolio HSA Gold - Statewide PPO Network - PPO
  • Blue PPO PremierHealth Silver - Statewide PPO Network - PPO
  • Blue PPO PremierHealth Gold - Statewide PPO Network - PPO
  • Blue PPO StandardHealth Gold - Statewide PPO Network - PPO
  • Blue PPO StandardHealth Silver - Statewide PPO Network - PPO
  • Blue StandardHealth Bronze - Neighborhood Network - HMO
  • Blue StandardHealth Gold - Neighborhood Network - HMO
  • Blue StandardHealth Silver - Neighborhood Network - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Unni Udayasankar is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Unni Udayasankar is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 6800927617

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20150709003119

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Ct scan head or brain without contrast

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.

This service was performed 41 times for 39 patients

Ct scan of upper spine without contrast

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.

This service was performed 11 times for 11 patients

Mri scan of brain before and after contrast

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.

This service was performed 17 times for 16 patients

Overall MIPS Quality Performance

The provider participated in CMS Quality Payment Program under the Merit-based Incentive Payment System (MIPS) and has an overall final score of 88.66, based on four performance areas: quality, improvement activities, promoting interoperability, and cost. The purpose of this information is to help people with Medicare make informed decisions and incentivize doctors and clinicians to maximize performance.

The Merit-based Incentive Payment System (MIPS) is a way providers could use to participate in CMS Quality Payment Program (QPP). The MIPS program affects clinician reimbursement for Part B covered professional services and also rewards them for improving the quality of patient care and outcomes.

  • Final Score: 88.66 out of 100

    The MIPS program evaluates providers across multiple categories with a specific weight for each category resulting a in a MIPS final score that ranges from 0 to 100 points. The MIPS Final Score determines whether providers receive a negative, neutral or positive MIPS payment adjustment.

  • Quality Score: N/A

    The Quality category assesses providers performance on clinical practices and patient outcomes under the traditional MIPS program. The quality measures help identify the quality of healthcare processes, outcomes, and patient experiences. The Quality measure category compromises 40% providers final MPIS scores.

    There are six collection types for MIPS quality measures: Electronic Clinical Quality Measures (eCQMs), MIPS Clinical Quality Measures (CQMs), Qualified Clinical Data Registry (QCDR) Measures, Medicare Part B claims measures, CMS Web Interface measures and The Consumer Assessment of Healthcare Providers and Systems (CAHPS) for MIPS Survey.

  • Promoting Interoperability Score: 100

    The Interoperability category measures the providers ability to use technology to exchange and make use of healthcare information in a way that is less burdensome and improves outcomes. The Interoperability measure category compromises 25% providers final MPIS scores.

    The MIPS Interoperability measure focuses on the use of certified electronic health record technology (CEHRT) to improve patient access health information, the exchange of information between clinicians and pharmacies and the systematic collection, analysis, and interpretation of healthcare data.

  • Improvement Activities Score: 40

    The Improvement Activities performance category evaluates the providers participation in clinical activities that support the improvement of clinical practice, care delivery, and outcomes. Providers have the option to choose 2 to 4 activities from an inventory of over 100 improvement activities. Providers typically choose the activities that best fit their needs. The improvement activities measure category compromises 15% providers final MPIS scores.

    The Improvement measures aim to better patient engagement, patient safety and other areas of patient care. The Improvement Activities category compromises 15% of providers final MPIS scores.

  • Cost Score: 62.2

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

  • Cost Score: 62.2

    The Cost performance category asses the amount and types of services provided and how clinicians coordinate care and seek improvement of health outcomes by ensuring patients receive the appropriate services.

    Although providers don't determine the price of healthcare services they are important in delivering high-quality care at a reasonable cost. The Cost measures category compromises 20% of providers final MPIS scores.

Reviews for DR. UNNI K UDAYASANKAR MD

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NPI Validation Check Digit Calculation


The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1568647253
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2512812414210
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 5 + 1 + 2 + 8 + 1 + 2 + 4 + 1 + 4 + 2 + 1 + 0 + 24 = 57
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
60 - 57 = 33

The NPI number 1568647253 is valid because the calculated check digit 3 using the Luhn validation algorithm matches the last digit of the original NPI number.

Other Providers at the Same Location


The following 20 providers are registered at the same or nearby location.

NPI Name / Type Taxonomy Address
1073836722 NANCY CHEN MD
Individual
Hospitalist1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-6614
1578025193 JAMES H SMITT MD
Individual
Emergency Medicine1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-7233
1437506904DR. CHRISTOPHER BRIAN JOHNSON M.D.
Individual
Internal Medicine1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1104488253 LAURA SANDT FNP-C
Individual
Nurse Practitioner (Family)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-6000
1255890737 HEATHER FYDRYCH
Individual
Nurse Practitioner (Pediatrics)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0000
1730739152 GRACE HYEYOUNG PARK
Individual
Pharmacist1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1255779385 MICHELINA CALIN DE LA MAZA MD
Individual
Pediatrics1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-7053
1982040036 GALEN GARCIA M.D.
Individual
Anesthesiology (Pediatric Anesthesiology)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1396381190 SHEILA MICKELS
Individual
Nurse Anesthetist, Certified Registered1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1477924082MRS. STEPHANIE WALLACE PA-C
Individual
Physician Assistant1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1467099143MRS. ADRIANA JAZMIN MEDEIROS FNP
Individual
Nurse Practitioner (Family)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1447879267 BARBARA ALVA MAYER NP
Individual
Nurse Practitioner (Acute Care)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1891324992 KATIE SANDUSKY MSN/FNP-BC
Individual
Nurse Practitioner (Family)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1730708397 SPENCER JEFFREY KNIGHT MD
Individual
Student in an Organized Health Care Education/Training Program1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1669092599 MADELINE MERCIER
Individual
Emergency Medicine1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-7233
1134749872 ALFONSO TADEUS ZAVALA
Individual
Student in an Organized Health Care Education/Training Program1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1992325435DR. JONATHAN PATRICK COSS MD
Individual
Emergency Medicine1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-7233
1750902110 SAMUEL MEADE FREEDMAN
Individual
Emergency Medicine1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-7233
1649891011 DARIEN STRATTON MD
Individual
Emergency Medicine1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 694-0111
1659992196 AUDREY WADOOD
Individual
Psychiatry & Neurology (Neurology)1625 N CAMPBELL AVE
TUCSON, AZ 85719
(520) 626-3894

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1568647253, enumerated in the NPI registry as an "individual" on January 01, 2008

The provider is located at 1625 N Campbell Ave Tucson, Az 85719 and the phone number is (520) 694-0111

The provider's speciality is Radiology with taxonomy code 2085P0229X with a focus in Pediatric Radiology

The provider has more than 26 years of experience.

The provider might be accepting Accepts: Ambetter from Arizona Complete Health and Blue. Please consult your insurance carrier or call the provider to make sure your health plan is currently accepted.

Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary the provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

The provider has an overall high rating in the following quality measures: uses technology to exchange and make use of healthcare information.

The most common procedures or services performed by this practitioner are: Ct scan head or brain without contrast, Ct scan of upper spine without contrast and Mri scan of brain before and after contrast.

This NPI record was last updated on January 01, 2008. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.