TENNESSEE BREAST RADIOLOGY SPECIALISTS,PLLC
NPI 1821931544
Radiology - Diagnostic Radiology in Knoxville, TN

NPI Status: Active since April 09, 2026

Contact Information

1400 DOWELL SPRINGS BLVD STE 200
KNOXVILLE, TN
ZIP 37909
Phone: (865) 584-0291
Fax: (865) 584-4425

NPI Profile Information
Primary Taxonomy
Group Taxonomy
Authorized Official
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Radiology
Diagnostic Radiology

About TENNESSEE BREAST RADIOLOGY SPECIALISTS,PLLC

This page provides the complete NPI Profile along with additional information for Tennessee Breast Radiology Specialists,pllc, a provider established in Knoxville, Tennessee operating as a Radiology, focusing in diagnostic radiology . The healthcare provider is registered in the NPI registry with number 1821931544 assigned on April 2026. The practitioner's primary taxonomy code is 2085R0202X. The provider is registered as an organization and their NPI record was last updated April 2026. Tennessee Breast Radiology Specialists,pllc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Michael J Deleo Md (Authorized Official)

NPI: 1821931544
Provider Name: TENNESSEE BREAST RADIOLOGY SPECIALISTS,PLLC
Entity Type: Organization
Location Address: 1400 DOWELL SPRINGS BLVD STE 200 KNOXVILLE, TN 37909
Location Phone: (865) 584-0291
Location Fax: (865) 584-4425
Mailing Address: 2034 PINETREE LN STE 218 SAN ANTONIO, TX 78232
Mailing Phone: (210) 614-0959
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 04-09-2026
Last Update Date: 04-09-2026
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Location Map

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 Diagnostic Radiology
Taxonomy Code: 2085R0202X
Type: Allopathic & Osteopathic Physicians
Taxonomy Description: A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name: DR. MICHAEL J DELEO MD
Authorized Official Title: AUTHORIZED OFFICIAL
Authorized Official Phone: (781) 729-3189

NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1821931544, we treat the final digit (4) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 8

Check

Target digit

Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 2 → 4 9 → 18 → 9 1 → 2 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 8 + 4 + 1 + 1 + 8 + 3 + 2 + 5 + 8 + 24 = 66

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 66 is 70. The difference is the calculated check digit.

70 - 66 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1821931544.