ALLISON STEPHENS M.S.
NPI 1619357720
Speech-Language Pathologist in Corte Madera, CA

NPI Status: Active since June 03, 2015

Contact Information

500 TAMAL PLZ STE 505
CORTE MADERA, CA
ZIP 94925
Phone: (415) 336-3896

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  • Individual
  • Female
  • Speech-Language Pathologist

About ALLISON STEPHENS

This page provides the complete NPI Profile along with additional information for Allison Stephens, a provider established in Corte Madera, California with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1619357720 assigned on June 2015. The practitioner's primary taxonomy code is 235Z00000X with license number RPE9781 (CA). The provider is registered as an individual and her NPI record was last updated 2 years ago.

NPI
1619357720
Provider Name
ALLISON STEPHENS M.S.
Gender
Female
Entity Type
Individual
Location Address
500 TAMAL PLZ STE 505 CORTE MADERA, CA 94925
Location Phone
(415) 336-3896
Mailing Address
243 AVILA ST SAN FRANCISCO, CA 94123
Mailing Phone
(415) 336-3896
Is Sole Proprietor?
No
Enumeration Date
06-03-2015
Last Update Date
01-09-2024
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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.
RPE9781
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.

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

14241 (CA)

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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 1619357720, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 2 + 9 + 6 + 5 + 1 + 4 + 7 + 4 + 24 = 70

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

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

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1619357720.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Occupational Therapist (Pediatrics)
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925
Occupational Therapist (Pediatrics)
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925
Occupational Therapist (Pediatrics)
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925
Occupational Therapist
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925
Occupational Therapist
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925
Occupational Therapist
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925
Occupational Therapist
500 TAMAL PLZ STE 505
CORTE MADERA, CA 94925

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1619357720, enumerated as an "individual" on June 03, 2015.

The provider is located at 500 TAMAL PLZ STE 505 CORTE MADERA, CA 94925 and the phone number is (415) 336-3896.

Speech-Language Pathologist with taxonomy code 235Z00000X.