TERYN CLARK HANRAHAN ATC
NPI 1003755802
Specialist/Technologist - Athletic Trainer in Portland, ME

NPI Status: Active since March 26, 2026

Contact Information

33 SEWALL ST
PORTLAND, ME
ZIP 04102
Phone: (207) 828-2100
Fax: (207) 828-2190

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

Individual
Female
Specialist/Technologist
Athletic Trainer

About TERYN HANRAHAN

This page provides the complete NPI Profile along with additional information for Teryn Hanrahan, a provider established in Portland, Maine with a medical specialization in Specialist/technologist, focusing in athletic trainer . The healthcare provider is registered in the NPI registry with number 1003755802 assigned on March 2026. The practitioner's primary taxonomy code is 2255A2300X with license number AT397 (ME). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI: 1003755802
Provider Name: TERYN CLARK HANRAHAN ATC
Gender: Female
Entity Type: Individual
Location Address: 33 SEWALL ST PORTLAND, ME 04102
Location Phone: (207) 828-2100
Location Fax: (207) 828-2190
Mailing Address: 33 SEWALL ST PORTLAND, ME 04102
Mailing Phone: (207) 828-2100
Mailing Fax: (207) 828-2190
Is Sole Proprietor?: No
Enumeration Date: 03-26-2026
Last Update Date: 03-26-2026
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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: Specialist/Technologist Athletic Trainer
Taxonomy Code: 2255A2300X
Type: Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.: AT397
License State: ME
Taxonomy Description: Athletic trainers are allied health care professionals who work in consultation with or under the direction of physicians, and specialize in the prevention, assessment, treatment and rehabilitation of injuries and illnesses. Currently, the entry-level employment requirements are a bachelor's degree with a major in athletic training from an accredited university or college. A majority of athletic trainers hold advanced degrees. National board certification is generally required as a condition of state licensure and employment. Most states regulate athletic trainers, and they practice within the scope of that license or regulation. Clinical practice includes emergency care, rehabilitation, reconditioning, therapeutic exercise, wellness programs, exercise physiology, kinesiology, biomechanics, nutrition, psychology and health care administration.

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 1003755802, we treat the final digit (2) 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 48. The final step is to find the difference between that total and the next multiple of ten (50 - 48 = 2).

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 → 0

Pos 4

Unchanged

Pos 5

Doubled → 14 → 1 + 4

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 0

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 0 → 0 7 → 14 → 5 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 0 + 3 + 1 + 4 + 5 + 1 + 0 + 8 + 0 + 24 = 48

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

The next multiple of ten after 48 is 50. The difference is the calculated check digit.

50 - 48 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1003755802.