SEAN LOPEZ
NPI 1265301154
Counselor in Santa Rosa, CA

NPI Status: Active since October 30, 2025

Contact Information

2225 CHALLENGER WAY
SANTA ROSA, CA
ZIP 95407
Phone: (707) 565-5602

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  • Individual
  • Male
  • Counselor

About SEAN LOPEZ

This page provides the complete NPI Profile along with additional information for Sean Lopez, a provider established in Santa Rosa, California with a medical specialization in Counselor. The healthcare provider is registered in the NPI registry with number 1265301154 assigned on October 2025. The practitioner's primary taxonomy code is 101Y00000X. The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1265301154
Provider Name
SEAN LOPEZ
Gender
Male
Entity Type
Individual
Location Address
2225 CHALLENGER WAY SANTA ROSA, CA 95407
Location Phone
(707) 565-5602
Mailing Address
2225 CHALLENGER WAY SANTA ROSA, CA 95407
Mailing Phone
(707) 565-5602
Is Sole Proprietor?
No
Enumeration Date
10-30-2025
Last Update Date
10-30-2025
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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

Taxonomy Code
101Y00000X
Type
Behavioral Health & Social Service Providers
License State
CA
Taxonomy Description
A provider who is trained and educated in the performance of behavior health services through interpersonal communications and analysis. Training and education at the specialty level usually requires a master's degree and clinical experience and supervision for licensure or certification.

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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 1265301154, we treat the final digit (4) 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 46. The final step is to find the difference between that total and the next multiple of ten (50 - 46 = 4).

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
6
Doubled → 12 → 1 + 2
Pos 4
5
Unchanged
Pos 5
3
Doubled → 6
Pos 6
0
Unchanged
Pos 7
1
Doubled → 2
Pos 8
1
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
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 1 → 2 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 2 + 5 + 6 + 0 + 2 + 1 + 1 + 0 + 24 = 46

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

The next multiple of ten after 46 is 50. The difference is the calculated check digit.

50 - 46 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1265301154.

Other Providers at the Same Location


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

Counselor (Addiction (Substance Use Disorder))
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Marriage & Family Therapist
2225 CHALLENGER WAY, ACCESS TEAM
SANTA ROSA, CA 95407
Licensed Psychiatric Technician
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Licensed Vocational Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Licensed Vocational Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse (Psychiatric/Mental Health, Adult)
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Licensed Vocational Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Marriage & Family Therapist
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Psychiatry & Neurology (Psychiatry)
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Licensed Vocational Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse (Psychiatric/Mental Health)
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Marriage & Family Therapist
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse (Psychiatric/Mental Health)
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Licensed Psychiatric Technician
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse (Psychiatric/Mental Health)
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse (Psychiatric/Mental Health)
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Physician Assistant
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407
Registered Nurse
2225 CHALLENGER WAY
SANTA ROSA, CA 95407

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265301154, enumerated as an "individual" on October 30, 2025.

The provider is located at 2225 CHALLENGER WAY SANTA ROSA, CA 95407 and the phone number is (707) 565-5602.

Counselor with taxonomy code 101Y00000X.