MELISSA MCDONNELL CHITWOOD
NPI 1982499828
Counselor - School in Arroyo Grande, CA

NPI Status: Active since April 11, 2025

Contact Information

1208 LINDA DR
ARROYO GRANDE, CA
ZIP 93420
Phone: (805) 474-3000

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  • Individual
  • Female
  • Counselor
  • School

About MELISSA MCDONNELL CHITWOOD

This page provides the complete NPI Profile along with additional information for Melissa Mcdonnell Chitwood, a provider established in Arroyo Grande, California with a medical specialization in Counselor, focusing in school . The healthcare provider is registered in the NPI registry with number 1982499828 assigned on April 2025. The practitioner's primary taxonomy code is 101YS0200X. The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1982499828
Provider Name
MELISSA MCDONNELL CHITWOOD
Gender
Female
Entity Type
Individual
Location Address
1208 LINDA DR ARROYO GRANDE, CA 93420
Location Phone
(805) 474-3000
Mailing Address
1208 LINDA DR ARROYO GRANDE, CA 93420
Mailing Phone
(805) 474-3000
Is Sole Proprietor?
No
Enumeration Date
04-11-2025
Last Update Date
04-11-2025
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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

Counselor School

Taxonomy Code
101YS0200X
Type
Behavioral Health & Social Service Providers

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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 1982499828, 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 82. The final step is to find the difference between that total and the next multiple of ten (90 - 82 = 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
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
2
Doubled → 4
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 8 → 16 → 7 4 → 8 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 6 + 2 + 8 + 9 + 1 + 8 + 8 + 4 + 24 = 82

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

The next multiple of ten after 82 is 90. The difference is the calculated check digit.

90 - 82 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1982499828.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982499828, enumerated as an "individual" on April 11, 2025.

The provider is located at 1208 LINDA DR ARROYO GRANDE, CA 93420 and the phone number is (805) 474-3000.

Counselor with taxonomy code 101YS0200X and a focus in School.