SAMUEL DOUGLAS DE LOS SANTOS
NPI 1275463143
Counselor - Mental Health in Greenville, SC

NPI Status: Active since May 21, 2026

Contact Information

7 PETTIGRU ST
GREENVILLE, SC
ZIP 29601
Phone: (864) 513-9134

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  • Individual
  • Male
  • Counselor
  • Mental Health

About SAMUEL DE LOS SANTOS

This page provides the complete NPI Profile along with additional information for Samuel De Los Santos, a provider established in Greenville, South Carolina with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1275463143 assigned on May 2026. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1275463143
Provider Name
SAMUEL DOUGLAS DE LOS SANTOS
Gender
Male
Entity Type
Individual
Location Address
7 PETTIGRU ST GREENVILLE, SC 29601
Location Phone
(864) 513-9134
Mailing Address
100 GLOUCESTER FERRY RD APT 327 GREENVILLE, SC 29607
Mailing Phone
(210) 621-7711
Is Sole Proprietor?
Yes
Enumeration Date
05-21-2026
Last Update Date
05-21-2026
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A mental health counselor like Samuel De Los Santos 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 1275463143, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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
2
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
5
Unchanged
Pos 5
4
Doubled → 8
Pos 6
6
Unchanged
Pos 7
3
Doubled → 6
Pos 8
1
Unchanged
Pos 9
4
Doubled → 8
Check
3
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 7 → 14 → 5 4 → 8 3 → 6 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 4 + 5 + 8 + 6 + 6 + 1 + 8 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1275463143.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Counselor (Professional)
7 PETTIGRU ST, CANTERBURY COUNSELING CENTER
GREENVILLE, SC 29601
Social Worker (Clinical)
7 PETTIGRU ST
GREENVILLE, SC 29601
Social Worker (Clinical)
7 PETTIGRU ST
GREENVILLE, SC 29601
Social Worker (Clinical)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Mental Health)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Marriage & Family Therapist
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Mental Health)
7 PETTIGRU ST
GREENVILLE, SC 29601
Clinic/Center (Mental Health (Including Community Mental Health Center))
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Professional)
7 PETTIGRU ST
GREENVILLE, SC 29601
Clinic/Center (Mental Health (Including Community Mental Health Center))
7 PETTIGRU ST
GREENVILLE, SC 29601
Social Worker (Clinical)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Mental Health)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Mental Health)
7 PETTIGRU ST
GREENVILLE, SC 29601
Counselor (Mental Health)
7 PETTIGRU ST
GREENVILLE, SC 29601

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1275463143, enumerated as an "individual" on May 21, 2026.

The provider is located at 7 PETTIGRU ST GREENVILLE, SC 29601 and the phone number is (864) 513-9134.

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