KATHARINE I. JOHNSON RRT
NPI 1538869284
Respiratory Therapist, Registered in South Portland, ME

NPI Status: Active since March 09, 2023

Contact Information

100 FODEN RD
SOUTH PORTLAND, ME
ZIP 04106
Phone: (207) 523-8500
Fax: (207) 523-8591

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  • Individual
  • Female
  • Respiratory Therapist, Registered

About KATHARINE JOHNSON

This page provides the complete NPI Profile along with additional information for Katharine Johnson, a provider established in South Portland, Maine with a medical specialization in Respiratory Therapist, Registered. The healthcare provider is registered in the NPI registry with number 1538869284 assigned on March 2023. The practitioner's primary taxonomy code is 227900000X with license number TH2058 (ME). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1538869284
Provider Name
KATHARINE I. JOHNSON RRT
Gender
Female
Entity Type
Individual
Location Address
100 FODEN RD SOUTH PORTLAND, ME 04106
Location Phone
(207) 523-8500
Location Fax
(207) 523-8591
Mailing Address
100 GANNETT DR STE C SOUTH PORTLAND, ME 04106
Mailing Phone
(207) 828-0361
Mailing Fax
(207) 523-8591
Is Sole Proprietor?
No
Enumeration Date
03-09-2023
Last Update Date
06-06-2025
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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

Respiratory Therapist, Registered

Taxonomy Code
227900000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
TH2058
License State
ME
Taxonomy Description
A Registered Respiratory Therapist (RRT) is an advanced therapist who has passed standardized written and clinical simulation examinations administered by the National Board for Respiratory Care (NBRC). In addition, to the certified therapist (CRT) entry level skills, RRTs have advanced education and training in patient assessment, in the development and modification of patient care plans, and in assuring the appropriate utilization of respiratory care resources. An RRT is a graduate of an associate or baccalaureate degree producing educational programs approved by the Commission on Accreditation of Allied Health Education Programs (CAAHEP) and where applicable, is licensed by the state and is practicing within the scope of that license.

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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 1538869284, 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 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
1
Doubled → 2
Pos 2
5
Unchanged
Pos 3
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
4
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 3 → 6 8 → 16 → 7 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 1 + 6 + 6 + 1 + 8 + 2 + 1 + 6 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1538869284.

Other Providers at the Same Location


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

Physical Therapist
100 FODEN RD, SUITE 103W
SOUTH PORTLAND, ME 04106
Physical Therapist
100 FODEN RD, SUITE 103W
SOUTH PORTLAND, ME 04106
Specialist/Technologist (Athletic Trainer)
100 FODEN RD, SUITE 103 WEST
SOUTH PORTLAND, ME 04106
Specialist/Technologist (Athletic Trainer)
100 FODEN RD, SUITE 103W
SOUTH PORTLAND, ME 04106
Radiology (Diagnostic Radiology)
100 FODEN RD, SUITE 100
SOUTH PORTLAND, ME 04106
Specialist/Technologist (Athletic Trainer)
100 FODEN RD, SUITE 103W
SO PORTLAND, ME 04106
Phlebology
100 FODEN RD, SUITE 307 WEST
SOUTH PORTLAND, ME 04106
Orthopaedic Surgery (Sports Medicine)
100 FODEN RD, SUITE 307
SOUTH PORTLAND, ME 04106
Family Medicine
100 FODEN RD, SUITE 307 W
SOUTH PORTLAND, ME 04106
Nurse Practitioner (Family)
100 FODEN RD, SUITE 203
SOUTH PORTLAND, ME 04106
Specialist/Technologist (Athletic Trainer)
100 FODEN RD, SUITE 205
SOUTH PORTLAND, ME 04106
Clinic/Center (Physical Therapy)
100 FODEN RD, SUITE 200
SOUTH PORTLAND, ME 04106
Internal Medicine (Pulmonary Disease)
100 FODEN RD, SUITE 103, WEST BUILDING
SOUTH PORTLAND, ME 04106
Psychologist (Clinical)
100 FODEN RD, #103
SOUTH PORTLAND, ME 04106
Nurse Practitioner (Family)
100 FODEN RD, SUITE 203
SOUTH PORTLAND, ME 04106
Specialist/Technologist (Athletic Trainer)
100 FODEN RD
SOUTH PORTLAND, ME 04106
Specialist/Technologist (Athletic Trainer)
100 FODEN RD
SOUTH PORTLAND, ME 04106
Social Worker (Clinical)
100 FODEN RD
SOUTH PORTLAND, ME 04106
Nurse Practitioner (Gerontology)
100 FODEN RD
SOUTH PORTLAND, ME 04106
Pediatrics (Sleep Medicine)
100 FODEN RD
SOUTH PORTLAND, ME 04106

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538869284, enumerated as an "individual" on March 09, 2023.

The provider is located at 100 FODEN RD SOUTH PORTLAND, ME 04106 and the phone number is (207) 523-8500.

Respiratory Therapist, Registered with taxonomy code 227900000X.