MR. JOHN MAYO
NPI 1033970710
Counselor - Mental Health in Brookline, MA

NPI Status: Active since January 19, 2024

Contact Information

1180 BEACON ST STE 4C
BROOKLINE, MA
ZIP 02446
Phone: (617) 299-6929

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  • Individual
  • Male
  • Counselor
  • Mental Health

About JOHN MAYO

This page provides the complete NPI Profile along with additional information for John Mayo, a provider established in Brookline, Massachusetts with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1033970710 assigned on January 2024. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1033970710
Provider Name
MR. JOHN MAYO
Gender
Male
Entity Type
Individual
Location Address
1180 BEACON ST STE 4C BROOKLINE, MA 02446
Location Phone
(617) 299-6929
Mailing Address
1180 BEACON ST STE 4C BROOKLINE, MA 02446
Mailing Phone
(617) 299-6929
Is Sole Proprietor?
No
Enumeration Date
01-19-2024
Last Update Date
08-11-2025
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A mental health counselor like John Mayo provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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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 Mental Health

Taxonomy Code
101YM0800X
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 1033970710, 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 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
0
Unchanged
Pos 3
3
Doubled → 6
Pos 4
3
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
1
Doubled → 2
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 3 → 6 9 → 18 → 9 0 → 0 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 6 + 3 + 1 + 8 + 7 + 0 + 7 + 2 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1033970710.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Clinic/Center (Adult Mental Health)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Social Worker (Clinical)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446
Social Worker (Clinical)
1180 BEACON ST STE 4C
BROOKLINE, MA 02446

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033970710, enumerated as an "individual" on January 19, 2024.

The provider is located at 1180 BEACON ST STE 4C BROOKLINE, MA 02446 and the phone number is (617) 299-6929.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.