MRS. ANNE-MARIE MCMAHON MS CCCSLP
NPI 1073771218
Speech-Language Pathologist in Saint Louis, MO

NPI Status: Active since May 23, 2008

Contact Information

1335 STRASSNER DR
SAINT LOUIS, MO
ZIP 63144
Phone: (844) 502-7996

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  • Individual
  • Female
  • Speech-Language Pathologist

About ANNE-MARIE MCMAHON

This page provides the complete NPI Profile along with additional information for Anne-marie Mcmahon, a provider established in Saint Louis, Missouri with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1073771218 assigned on May 2008. The practitioner's primary taxonomy code is 235Z00000X with license number SP7957 (CA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1073771218
Provider Name
MRS. ANNE-MARIE MCMAHON MS CCCSLP
Other Name
ANNE-MARIE HENRY
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
1335 STRASSNER DR SAINT LOUIS, MO 63144
Location Phone
(844) 502-7996
Mailing Address
1335 STRASSNER DR SAINT LOUIS, MO 63144
Mailing Phone
(844) 502-7996
Is Sole Proprietor?
No
Enumeration Date
05-23-2008
Last Update Date
03-30-2026
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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

Speech-Language Pathologist

Taxonomy Code
235Z00000X
Type
Speech, Language and Hearing Service Providers
License No.
SP7957
License State
CA
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 1073771218, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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
0
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
7
Unchanged
Pos 7
1
Doubled → 2
Pos 8
2
Unchanged
Pos 9
1
Doubled → 2
Check
8
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 7 → 14 → 5 7 → 14 → 5 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 + 0 + 1 + 4 + 3 + 1 + 4 + 7 + 2 + 2 + 2 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1073771218.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Physical Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapist
1335 STRASSNER DR
SAINT LOUIS, MO 63144
Occupational Therapist
1335 STRASSNER DR
SAINT LOUIS, MO 63144
Occupational Therapist
1335 STRASSNER DR
SAINT LOUIS, MO 63144
Occupational Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Speech-Language Pathologist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Physical Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Physical Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Physical Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Speech-Language Pathologist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Physical Therapist
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapy Assistant
1335 STRASSNER DR
BRENTWOOD, MO 63144
Occupational Therapist
1335 STRASSNER DR
SAINT LOUIS, MO 63144
Nurse Practitioner (Adult Health)
1335 STRASSNER DR
BRENTWOOD, MO 63144
Internal Medicine (Geriatric Medicine)
1335 STRASSNER DR
BRENTWOOD, MO 63144

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1073771218, enumerated as an "individual" on May 23, 2008.

The provider is located at 1335 STRASSNER DR SAINT LOUIS, MO 63144 and the phone number is (844) 502-7996.

Speech-Language Pathologist with taxonomy code 235Z00000X.