MIRELLA LIDIA SIMON
NPI 1447135801
Speech-Language Pathologist in Tracy, CA

NPI Status: Active since August 06, 2025

Contact Information

2185 W GRANT LINE RD
TRACY, CA
ZIP 95377
Phone: (209) 839-3200

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  • Individual
  • Female
  • Speech-Language Pathologist

About MIRELLA SIMON

This page provides the complete NPI Profile along with additional information for Mirella Simon, a provider established in Tracy, California with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1447135801 assigned on August 2025. The practitioner's primary taxonomy code is 235Z00000X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1447135801
Provider Name
MIRELLA LIDIA SIMON
Gender
Female
Entity Type
Individual
Location Address
2185 W GRANT LINE RD TRACY, CA 95377
Location Phone
(209) 839-3200
Mailing Address
8351 PINOT GRIGIO ST ROSEVILLE, CA 95747
Mailing Phone
(530) 713-2237
Is Sole Proprietor?
No
Enumeration Date
08-06-2025
Last Update Date
08-06-2025
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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
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 1447135801, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
4
Doubled → 8
Pos 4
7
Unchanged
Pos 5
1
Doubled → 2
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
0
Doubled → 0
Check
1
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 4 → 8 1 → 2 5 → 10 → 1 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 8 + 7 + 2 + 3 + 1 + 0 + 8 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1447135801.

Other Providers at the Same Location


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

Obstetrics & Gynecology
2185 W GRANT LINE RD, 2ND FLOOR
TRACY, CA 95377
Internal Medicine
2185 W GRANT LINE RD
TRACY, CA 95377
Pediatrics
2185 W GRANT LINE RD
TRACY, CA 95377
Psychologist
2185 W GRANT LINE RD
TRACY, CA 95377
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
Marriage & Family Therapist
2185 W GRANT LINE RD
TRACY, CA 95377
Dietitian, Registered
2185 W GRANT LINE RD
TRACY, CA 95377
Family Medicine
2185 W GRANT LINE RD
TRACY, CA 95377
Social Worker (Clinical)
2185 W GRANT LINE RD
TRACY, CA 95377
Psychiatry & Neurology (Child & Adolescent Psychiatry)
2185 W GRANT LINE RD
TRACY, CA 95377
Psychologist
2185 W GRANT LINE RD, PSYCHIATRY
TRACY, CA 95377
Internal Medicine
2185 W GRANT LINE RD
TRACY, CA 95377
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
Pharmacist
2185 W GRANT LINE RD
TRACY, CA 95377
Psychologist
2185 W GRANT LINE RD
TRACY, CA 95377
Nurse Practitioner (Family)
2185 W GRANT LINE RD
TRACY, CA 95377
Pharmacy (Community/Retail Pharmacy)
2185 W GRANT LINE RD
TRACY, CA 95377
Pediatrics
2185 W GRANT LINE RD
TRACY, CA 95377

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1447135801, enumerated as an "individual" on August 06, 2025.

The provider is located at 2185 W GRANT LINE RD TRACY, CA 95377 and the phone number is (209) 839-3200.

Speech-Language Pathologist with taxonomy code 235Z00000X.