MRS. CATHERINE RUTH LEFEBVRE M.S., CCC-SLP
NPI 1437458023
Speech-Language Pathologist in Marlborough, MA

NPI Status: Active since March 22, 2011

Contact Information

221 BOSTON POST RD E
MARLBOROUGH, MA
ZIP 01752
Phone: (508) 624-0304
Fax: (508) 624-0391

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  • Individual
  • Female
  • Speech-Language Pathologist

About CATHERINE LEFEBVRE

This page provides the complete NPI Profile along with additional information for Catherine Lefebvre, a provider established in Marlborough, Massachusetts with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1437458023 assigned on March 2011. The practitioner's primary taxonomy code is 235Z00000X with license number 8146 (MA). The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1437458023
Provider Name
MRS. CATHERINE RUTH LEFEBVRE M.S., CCC-SLP
Gender
Female
Entity Type
Individual
Location Address
221 BOSTON POST RD E MARLBOROUGH, MA 01752
Location Phone
(508) 624-0304
Location Fax
(508) 624-0391
Mailing Address
73 LAKE AVE LEICESTER, MA 01524
Mailing Phone
(508) 892-7133
Is Sole Proprietor?
No
Enumeration Date
03-22-2011
Last Update Date
03-22-2011
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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

Speech-Language Pathologist

Taxonomy Code
235Z00000X
Type
Speech, Language and Hearing Service Providers
License No.
8146
License State
MA
Taxonomy Description
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.

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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 1437458023, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
4
Unchanged
Pos 3
3
Doubled → 6
Pos 4
7
Unchanged
Pos 5
4
Doubled → 8
Pos 6
5
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
0
Unchanged
Pos 9
2
Doubled → 4
Check
3
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 4 → 8 8 → 16 → 7 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 6 + 7 + 8 + 5 + 1 + 6 + 0 + 4 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1437458023.

Other Providers at the Same Location


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

Physical Therapist
221 BOSTON POST RD E, SUITE 270
MARLBORO, MA 01752
Dentist
221 BOSTON POST RD E
MARLBORO, MA 01752
Social Worker (Clinical)
221 BOSTON POST RD E, SUITE 450
MARLBOROUGH, MA 01752
Social Worker (Clinical)
221 BOSTON POST RD E, SUITE 450
MARLBOROUGH, MA 01752
Social Worker (Clinical)
221 BOSTON POST RD E, SUITE 450
MARLBOROUGH, MA 01752
Chiropractor
221 BOSTON POST RD E, SUITE 125
MARLBOROUGH, MA 01752
Physical Therapist
221 BOSTON POST RD E, SUITE 270
MARLBOROUGH, MA 01752
Physical Therapist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Physical Therapist (Pediatrics)
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Speech-Language Pathologist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Developmental Therapist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Developmental Therapist
221 BOSTON POST RD E, 150
MARLBOROUGH, MA 01752
Occupational Therapist (Pediatrics)
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Developmental Therapist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Occupational Therapist (Pediatrics)
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Speech-Language Pathologist
221 BOSTON POST RD E
MARLBOROUGH, MA 01752
Developmental Therapist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Social Worker
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Developmental Therapist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752
Developmental Therapist
221 BOSTON POST RD E, SUITE 150
MARLBOROUGH, MA 01752

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1437458023, enumerated as an "individual" on March 22, 2011.

The provider is located at 221 BOSTON POST RD E MARLBOROUGH, MA 01752 and the phone number is (508) 624-0304.

Speech-Language Pathologist with taxonomy code 235Z00000X.