MR. GLENN RICHARD MCGOWAN MA
NPI 1649311481
Counselor - Mental Health in St Louis, MO

NPI Status: Active since February 12, 2007

Contact Information

717 UNION RD
ST LOUIS, MO
ZIP 63123
Phone: (314) 638-9011

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  • Individual
  • Male
  • Counselor
  • Mental Health

About GLENN MCGOWAN

This page provides the complete NPI Profile along with additional information for Glenn Mcgowan, a provider established in St Louis, Missouri with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1649311481 assigned on February 2007. The practitioner's primary taxonomy code is 101YM0800X with license number NCGC371-19 (MO). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1649311481
Provider Name
MR. GLENN RICHARD MCGOWAN MA
Gender
Male
Entity Type
Individual
Location Address
717 UNION RD ST LOUIS, MO 63123
Location Phone
(314) 638-9011
Mailing Address
717 UNION RD ST LOUIS, MO 63123
Mailing Phone
(314) 638-9011
Is Sole Proprietor?
No
Enumeration Date
02-12-2007
Last Update Date
09-11-2025
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A mental health counselor like Glenn Mcgowan 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.

Location Map

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
License No.
NCGC371-19
License State
MO

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)
1101YA0400XBehavioral Health & Social Service Providers

Counselor
Addiction (Substance Use Disorder)

10284 (IL)
21041C0700XBehavioral Health & Social Service Providers

Social Worker
Clinical

SW002614 (MO)

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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 1649311481, 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 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
6
Unchanged
Pos 3
4
Doubled → 8
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
1
Unchanged
Pos 7
1
Doubled → 2
Pos 8
4
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 3 → 6 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 6 + 1 + 2 + 4 + 1 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1649311481.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Chiropractor
717 UNION RD
SAINT LOUIS, MO 63123

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649311481, enumerated as an "individual" on February 12, 2007.

The provider is located at 717 UNION RD ST LOUIS, MO 63123 and the phone number is (314) 638-9011.

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