SARA FERREYRA
NPI 1871442350
Counselor - Mental Health in Pleasanton, CA

NPI Status: Active since January 27, 2026

Contact Information

1811 SANTA RITA RD STE 226
PLEASANTON, CA
ZIP 94566
Phone: (925) 353-0222

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  • Individual
  • Female
  • Counselor
  • Mental Health

About SARA FERREYRA

This page provides the complete NPI Profile along with additional information for Sara Ferreyra, a provider established in Pleasanton, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1871442350 assigned on January 2026. The practitioner's primary taxonomy code is 101YM0800X with license number 127409 (CA). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI
1871442350
Provider Name
SARA FERREYRA
Gender
Female
Entity Type
Individual
Location Address
1811 SANTA RITA RD STE 226 PLEASANTON, CA 94566
Location Phone
(925) 353-0222
Mailing Address
1811 SANTA RITA RD STE 226 PLEASANTON, CA 94566
Mailing Phone
(925) 353-0222
Is Sole Proprietor?
Yes
Enumeration Date
01-27-2026
Last Update Date
01-27-2026
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A mental health counselor like Sara Ferreyra 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.
127409
License State
CA

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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 1871442350, we treat the final digit (0) 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 60. The final step is to find the difference between that total and the next multiple of ten (60 - 60 = 0).

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
8
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
4
Unchanged
Pos 7
2
Doubled → 4
Pos 8
3
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
0
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 2 → 4 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 8 + 4 + 4 + 3 + 1 + 0 + 24 = 60

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

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

60 - 60 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1871442350.

Other Providers at the Same Location


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

Marriage & Family Therapist
1811 SANTA RITA RD STE 226
PLEASANTON, CA 94566

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871442350, enumerated as an "individual" on January 27, 2026.

The provider is located at 1811 SANTA RITA RD STE 226 PLEASANTON, CA 94566 and the phone number is (925) 353-0222.

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