TANDEM MENTAL HEALTH ASSOCIATES, INC.
NPI 1669309217
Clinic/Center - Mental Health (Including Community Mental Health Center) in Glen Allen, VA

NPI Status: Active since May 07, 2026

Contact Information

4337 COX RD
GLEN ALLEN, VA
ZIP 23060
Phone: (804) 277-9877
Fax: (804) 270-1211

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  • Organization
  • Clinic/Center
  • Mental Health (Including Community Menta...

About TANDEM MENTAL HEALTH ASSOCIATES, INC.

This page provides the complete NPI Profile along with additional information for Tandem Mental Health Associates, Inc., a provider established in Glen Allen, Virginia operating as a Clinic/center, focusing in mental health (including community mental health center) . The healthcare provider is registered in the NPI registry with number 1669309217 assigned on May 2026. The practitioner's primary taxonomy code is 261QM0801X. The provider is registered as an organization and their NPI record was last updated May 2026. The authorized official of this NPI record is Dr. Ariel Ham Psy.d., Lcp (Owner)

NPI
1669309217
Provider Name
TANDEM MENTAL HEALTH ASSOCIATES, INC.
Entity Type
Organization
Location Address
4337 COX RD GLEN ALLEN, VA 23060
Location Phone
(804) 277-9877
Location Fax
(804) 270-1211
Mailing Address
4337 COX RD GLEN ALLEN, VA 23060
Mailing Phone
(804) 277-9877
Mailing Fax
(804) 270-1211
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-07-2026
Last Update Date
05-07-2026
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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

Clinic/Center Mental Health (Including Community Mental Health Center)

Taxonomy Code
261QM0801X
Type
Ambulatory Health Care Facilities

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. ARIEL HAM PSY.D., LCP

Authorized Official Title
OWNER
Authorized Official Phone
(804) 277-9877

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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 1669309217, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
6
Doubled → 12 → 1 + 2
Pos 4
9
Unchanged
Pos 5
3
Doubled → 6
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
2
Unchanged
Pos 9
1
Doubled → 2
Check
7
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 6 → 12 → 3 3 → 6 9 → 18 → 9 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 2 + 9 + 6 + 0 + 1 + 8 + 2 + 2 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1669309217.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Counselor (Professional)
4337 COX RD
GLEN ALLEN, VA 23060
Psychologist (Clinical)
4337 COX RD
GLEN ALLEN, VA 23060
Psychologist (Clinical)
4337 COX RD
GLEN ALLEN, VA 23060
Counselor (Professional)
4337 COX RD
GLEN ALLEN, VA 23060
Counselor (Professional)
4337 COX RD
GLEN ALLEN, VA 23060
Counselor (Mental Health)
4337 COX RD
GLEN ALLEN, VA 23060
Counselor (Mental Health)
4337 COX RD
GLEN ALLEN, VA 23060
Counselor (Mental Health)
4337 COX RD
GLEN ALLEN, VA 23060

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1669309217, enumerated as an "organization" on May 07, 2026.

The provider is located at 4337 COX RD GLEN ALLEN, VA 23060 and the phone number is (804) 277-9877.

Clinic/Center with taxonomy code 261QM0801X and a focus in Mental Health (Including Community Mental Health Center).