RYAN CARROLL
NPI 1720922032
Counselor - Mental Health in San Francisco, CA

NPI Status: Active since April 16, 2026

Contact Information

110 GOUGH ST
SAN FRANCISCO, CA
ZIP 94102
Phone: (415) 917-1292

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  • Individual
  • Male
  • Counselor
  • Mental Health

About RYAN CARROLL

This page provides the complete NPI Profile along with additional information for Ryan Carroll, a provider established in San Francisco, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1720922032 assigned on April 2026. The practitioner's primary taxonomy code is 101YM0800X with license number 16569 (CA). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1720922032
Provider Name
RYAN CARROLL
Gender
Male
Entity Type
Individual
Location Address
110 GOUGH ST SAN FRANCISCO, CA 94102
Location Phone
(415) 917-1292
Mailing Address
32 ANSON WAY KENSINGTON, CA 94707
Is Sole Proprietor?
No
Enumeration Date
04-16-2026
Last Update Date
04-16-2026
Code Navigator

A mental health counselor like Ryan Carroll 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

Secondary Locations

  • 45 Camino Alto
    Mill Valley, CA 94941
    (415) 917-1292

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.
16569
License State
CA

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)
1106H00000XBehavioral Health & Social Service Providers

Marriage & Family Therapist

145631 (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 1720922032, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 4 + 0 + 1 + 8 + 2 + 4 + 0 + 6 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1720922032.

Other Providers at the Same Location


The following 11 providers are registered at the same or a nearby location.

Psychologist (Clinical)
110 GOUGH ST, 3RD FLOOR
SAN FRANCISCO, CA 94102
Marriage & Family Therapist
110 GOUGH ST, 403B
SAN FRANCISCO, CA 94102
Psychologist (Clinical)
110 GOUGH ST, #202
SAN FRANCISCO, CA 94102
Psychologist (Clinical)
110 GOUGH ST, SUITE 401
SAN FRANCISCO, CA 94102
Counselor (Mental Health)
110 GOUGH ST, SUITE 202
SAN FRANCISCO, CA 94102
Psychologist (Clinical)
110 GOUGH ST, STE 202
SAN FRANCISCO, CA 94102
Social Worker (Clinical)
110 GOUGH ST, STE 403
SAN FRANCISCO, CA 94102
Psychologist (Clinical)
110 GOUGH ST, SUITE 301
SAN FRANCISCO, CA 94102
Social Worker (Clinical)
110 GOUGH ST
SAN FRANCISCO, CA 94102
Marriage & Family Therapist
110 GOUGH ST
SAN FRANCISCO, CA 94102
Marriage & Family Therapist
110 GOUGH ST
SAN FRANCISCO, CA 94102

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1720922032, enumerated as an "individual" on April 16, 2026.

The provider is located at 110 GOUGH ST SAN FRANCISCO, CA 94102 and the phone number is (415) 917-1292.

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