CAROL KEIRN P.T.
NPI 1861891012
Physical Therapist - Pediatrics in Frederick, MD

NPI Status: Active since August 13, 2014

Contact Information

350 MONTEVUE LN
FREDERICK, MD
ZIP 21702
Phone: (301) 600-1742
Fax: (301) 600-3280

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

Individual
Female
Physical Therapist
Pediatrics

About CAROL KEIRN

This page provides the complete NPI Profile along with additional information for Carol Keirn, a provider established in Frederick, Maryland with a medical specialization in Physical Therapist, focusing in pediatrics . The healthcare provider is registered in the NPI registry with number 1861891012 assigned on August 2014. The practitioner's primary taxonomy code is 2251P0200X with license number 20807 (MD). The provider is registered as an individual and her NPI record was last updated 8 years ago.

NPI: 1861891012
Provider Name: CAROL KEIRN P.T.
Gender: Female
Entity Type: Individual
Location Address: 350 MONTEVUE LN FREDERICK, MD 21702
Location Phone: (301) 600-1742
Location Fax: (301) 600-3280
Mailing Address: 350 MONTEVUE LN FREDERICK, MD 21702
Mailing Phone: (301) 600-1742
Mailing Fax: (301) 600-3280
Is Sole Proprietor?: No
Enumeration Date: 08-13-2014
Last Update Date: 10-30-2018
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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: Physical Therapist Pediatrics
Taxonomy Code: 2251P0200X
Type: Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.: 20807
License State: MD
Taxonomy Description: A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Pediatric Physical Therapy, who has demonstrated specialized knowledge and skill in anatomy, histology, including embryonic development, genetics, biomechanics, neurological function, neuroscience, and pathology, behavioral sciences, and understanding of diseases or conditions that necessitate physical therapy care, that affect systems that in turn necessitate physical therapy care (comorbidities), and that influence the type of intervention that can be given.

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 1861891012, 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 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 → 12 → 1 + 2

Pos 4

Unchanged

Pos 5

Doubled → 16 → 1 + 6

Pos 6

Unchanged

Pos 7

Doubled → 2

Pos 8

Unchanged

Pos 9

Doubled → 2

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 6 → 12 → 3 8 → 16 → 7 1 → 2 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 2 + 1 + 1 + 6 + 9 + 2 + 0 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2

This NPI is valid

The calculated check digit is 2, which matches the last digit of 1861891012.