MEGAN JESSUP M.S.
NPI 1851019343
Speech-Language Pathologist in Saint Louis, MO

NPI Status: Active since August 19, 2022

Contact Information

801 N 11TH ST
SAINT LOUIS, MO
ZIP 63101
Phone: (314) 633-5344

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  • Individual
  • Female
  • Speech-Language Pathologist

About MEGAN JESSUP

This page provides the complete NPI Profile along with additional information for Megan Jessup, 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 1851019343 assigned on August 2022. The practitioner's primary taxonomy code is 235Z00000X with license number 2024027781 (MO). The provider is registered as an individual and her NPI record was last updated December 2025.

NPI
1851019343
Provider Name
MEGAN JESSUP M.S.
Gender
Female
Entity Type
Individual
Location Address
801 N 11TH ST SAINT LOUIS, MO 63101
Location Phone
(314) 633-5344
Mailing Address
421 S MAIN ST WATERLOO, IL 62298
Mailing Phone
(618) 335-4226
Is Sole Proprietor?
Yes
Enumeration Date
08-19-2022
Last Update Date
12-09-2025
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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.
2024027781
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1235Z00000XSpeech, Language and Hearing Service Providers

Speech-Language Pathologist

(IL)

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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 1851019343, 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 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
8
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
1
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
3
Unchanged
Pos 9
4
Doubled → 8
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 5 → 10 → 1 0 → 0 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 0 + 1 + 0 + 1 + 1 + 8 + 3 + 8 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1851019343.

Other Providers at the Same Location


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

Physical Therapist (Pediatrics)
801 N 11TH ST
SAINT LOUIS, MO 63101
Physical Therapist (Pediatrics)
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST
SAINT LOUIS, MO 63101
Occupational Therapist
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist (Pediatrics)
801 N 11TH ST
SAINT LOUIS, MO 63101
Speech-Language Pathologist
801 N 11TH ST
SAINT LOUIS, MO 63101
Speech-Language Pathologist
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Speech-Language Pathologist
801 N 11TH ST, MEDICAID DEPARTMENT
SAINT LOUIS, MO 63101
Occupational Therapist
801 N 11TH ST, MEDICAID DEPT
SAINT LOUIS, MO 63101
Speech-Language Pathologist
801 N 11TH ST
SAINT LOUIS, MO 63101
Speech-Language Pathologist
801 N 11TH ST
SAINT LOUIS, MO 63101
Local Education Agency (LEA)
801 N 11TH ST
SAINT LOUIS, MO 63101
Speech-Language Pathologist
801 N 11TH ST
SAINT LOUIS, MO 63101
Occupational Therapist
801 N 11TH ST
SAINT LOUIS, MO 63101

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1851019343, enumerated as an "individual" on August 19, 2022.

The provider is located at 801 N 11TH ST SAINT LOUIS, MO 63101 and the phone number is (314) 633-5344.

Speech-Language Pathologist with taxonomy code 235Z00000X.