CHRISTOPHER ALEX CHATWIN
NPI 1538035662
Counselor - Professional in Queen Creek, AZ

NPI Status: Active since October 15, 2025

Contact Information

21321 E OCOTILLO RD STE 132
QUEEN CREEK, AZ
ZIP 85142
Phone: (602) 759-0512

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  • Individual
  • Male
  • Counselor
  • Professional

About CHRISTOPHER CHATWIN

This page provides the complete NPI Profile along with additional information for Christopher Chatwin, a provider established in Queen Creek, Arizona with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1538035662 assigned on October 2025. The practitioner's primary taxonomy code is 101YP2500X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1538035662
Provider Name
CHRISTOPHER ALEX CHATWIN
Other Name
CHRIS CHATWIN
Other Name Type
Other Name (5)
Gender
Male
Entity Type
Individual
Location Address
21321 E OCOTILLO RD STE 132 QUEEN CREEK, AZ 85142
Location Phone
(602) 759-0512
Mailing Address
21321 E OCOTILLO RD STE 132 QUEEN CREEK, AZ 85142
Mailing Phone
(602) 759-0512
Is Sole Proprietor?
No
Enumeration Date
10-15-2025
Last Update Date
10-15-2025
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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 Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License State
AZ

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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 1538035662, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
5
Unchanged
Pos 3
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
2
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 3 → 6 0 → 0 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 0 + 3 + 1 + 0 + 6 + 1 + 2 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1538035662.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Counselor
21321 E OCOTILLO RD STE 132
QUEEN CREEK, AZ 85142
Clinic/Center (Mental Health (Including Community Mental Health Center))
21321 E OCOTILLO RD STE 132
QUEEN CREEK, AZ 85142
Counselor (Mental Health)
21321 E OCOTILLO RD STE 132
QUEEN CREEK, AZ 85142
Marriage & Family Therapist
21321 E OCOTILLO RD STE 132
QUEEN CREEK, AZ 85142

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538035662, enumerated as an "individual" on October 15, 2025.

The provider is located at 21321 E OCOTILLO RD STE 132 QUEEN CREEK, AZ 85142 and the phone number is (602) 759-0512.

Counselor with taxonomy code 101YP2500X and a focus in Professional.