MARIA DIETRICH M.S. CF-SLP
NPI 1356184857
Speech-Language Pathologist in Saint Charles, MO

NPI Status: Active since June 13, 2024

Contact Information

3420 HARRY S TRUMAN BLVD
SAINT CHARLES, MO
ZIP 63301
Phone: (636) 926-2700

Recently Updated NPI Information
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.

Table of Contents

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

Individual
Female
Speech-Language Pathologist

About MARIA DIETRICH

This page provides the complete NPI Profile along with additional information for Maria Dietrich, a provider established in Saint Charles, Missouri with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1356184857 assigned on June 2024. The practitioner's primary taxonomy code is 235Z00000X with license number 2025017562 (MO). The provider is registered as an individual and her NPI record was last updated August 2025.

NPI: 1356184857
Provider Name: MARIA DIETRICH M.S. CF-SLP
Gender: Female
Entity Type: Individual
Location Address: 3420 HARRY S TRUMAN BLVD SAINT CHARLES, MO 63301
Location Phone: (636) 926-2700
Mailing Address: 1542 E SWAN CIR BRENTWOOD, MO 63144
Mailing Phone: (636) 541-2274
Is Sole Proprietor?: No
Enumeration Date: 06-13-2024
Last Update Date: 08-08-2025
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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: Speech-Language Pathologist
Taxonomy Code: 235Z00000X
Type: Speech, Language and Hearing Service Providers
License No.: 2025017562
License State: MO
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.

NPI Validation Check Digit Calculation

The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.

Start with the original NPI number, the last digit is the check digit and is not used in the calculation.
1	3	5	6	1	8	4	8	5	7
Step 1: Double the value of the alternate digits, beginning with the rightmost digit.
2	3	10	6	2	8	8	8	10
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24.
2 + 3 + 1 + 0 + 6 + 2 + 8 + 8 + 8 + 1 + 0 + 24 = 63
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit.
70 - 63 = 7									7

The NPI number 1356184857 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.