HARVEY ALLEN DAVIS L.C.S.W.
NPI 1104825868
Counselor - Addiction (Substance Use Disorder) in Lexington, VA

NPI Status: Active since July 15, 2005

Contact Information

315 MYERS ST
LEXINGTON, VA
ZIP 24450
Phone: (540) 463-3141
Fax: (540) 463-9662

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  • Individual
  • Male
  • Counselor
  • Addiction (Substance Use Disorder)

About HARVEY DAVIS

This page provides the complete NPI Profile along with additional information for Harvey Davis, a provider established in Lexington, Virginia with a medical specialization in Counselor, focusing in addiction (substance use disorder) . The healthcare provider is registered in the NPI registry with number 1104825868 assigned on July 2005. The practitioner's primary taxonomy code is 101YA0400X with license number 0710000295 (VA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1104825868
Provider Name
HARVEY ALLEN DAVIS L.C.S.W.
Gender
Male
Entity Type
Individual
Location Address
315 MYERS ST LEXINGTON, VA 24450
Location Phone
(540) 463-3141
Location Fax
(540) 463-9662
Mailing Address
241 GREENHOUSE RD ATTN: STEPHANIE RHODENIZER LEXINGTON, VA 24450
Mailing Phone
(540) 464-3395
Mailing Fax
(540) 463-9662
Is Sole Proprietor?
Yes
Enumeration Date
07-15-2005
Last Update Date
09-11-2025
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A Substance Abuse or Addiction Counselor like Harvey Davis advices patients who experience alcoholism, drug addiction, eating disorders, mental health issues, or other mental or behavioral problems. Substance Abuse counselors provide treatment and support to help clients recover from addiction or modify problem behaviors. Many counselors incorporate the principles of 12-step programs, such as Alcoholics Anonymous (AA). They educate clients how to cope with stress and life’s issues in ways that help them recover. Counselors also help patients improve their personal relationships and find ways to discuss their addiction or other problems with family and friends.

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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 Addiction (Substance Use Disorder)

Taxonomy Code
101YA0400X
Type
Behavioral Health & Social Service Providers
License No.
0710000295
License State
VA

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)
11041C0700XBehavioral Health & Social Service Providers

Social Worker
Clinical

0904003777 (VA)

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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 1104825868, 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 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
1
Unchanged
Pos 3
0
Doubled → 0
Pos 4
4
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
8
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 0 → 0 8 → 16 → 7 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 + 1 + 0 + 4 + 1 + 6 + 2 + 1 + 0 + 8 + 1 + 2 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1104825868.

Other Providers at the Same Location


The following 5 providers are registered at the same or a nearby location.

Social Worker (Clinical)
315 MYERS ST
LEXINGTON, VA 24450
Hospice Care, Community Based
315 MYERS ST
LEXINGTON, VA 24450
Nurse Practitioner (Family)
315 MYERS ST
LEXINGTON, VA 24450
Clinic/Center (Multi-Specialty)
315 MYERS ST
LEXINGTON, VA 24450
Social Worker (Clinical)
315 MYERS ST
LEXINGTON, VA 24450

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1104825868, enumerated as an "individual" on July 15, 2005.

The provider is located at 315 MYERS ST LEXINGTON, VA 24450 and the phone number is (540) 463-3141.

Counselor with taxonomy code 101YA0400X and a focus in Addiction (Substance Use Disorder).