AUXILIADORA VANESSA TREJOS-MACHADO
NPI 1265370795
Community Health Worker in San Francisco, CA

NPI Status: Active since March 24, 2026

Contact Information

1000 CAYUGA AVE
SAN FRANCISCO, CA
ZIP 94112
Phone: (415) 469-4090

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  • Individual
  • Female
  • Community Health Worker

About AUXILIADORA TREJOS-MACHADO

This page provides the complete NPI Profile along with additional information for Auxiliadora Trejos-machado, a provider established in San Francisco, California with a medical specialization in Community Health Worker. The healthcare provider is registered in the NPI registry with number 1265370795 assigned on March 2026. The practitioner's primary taxonomy code is 172V00000X. The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1265370795
Provider Name
AUXILIADORA VANESSA TREJOS-MACHADO
Gender
Female
Entity Type
Individual
Location Address
1000 CAYUGA AVE SAN FRANCISCO, CA 94112
Location Phone
(415) 469-4090
Mailing Address
1515 QUINTARA ST SAN FRANCISCO, CA 94116
Is Sole Proprietor?
Yes
Enumeration Date
03-24-2026
Last Update Date
03-24-2026
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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

Community Health Worker

Taxonomy Code
172V00000X
Type
Other Service Providers
License State
CA
Taxonomy Description
Community health workers (CHW) are lay members of communities who work either for pay or as volunteers in association with the local health care system in both urban and rural environments and usually share ethnicity, language, socioeconomic status and life experiences with the community members they serve. They have been identified by many titles such as community health advisors, lay health advocates, promotores(as), outreach educators, community health representatives, peer health promoters, and peer health educators. CHWs offer interpretation and translation services, provide culturally appropriate health education and information, assist people in receiving the care they need, give informal counseling and guidance on health behaviors, advocate for individual and community health needs, and provide some direct services such as first aid and blood pressure screening. Some examples of these practitioners are Community Health Aides or Practitioners established under 25 USC 1616 (l) under HHS, Indian Health Service, Public Health Service.

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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 1265370795, we treat the final digit (5) 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 5).

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
7
Unchanged
Pos 7
0
Doubled → 0
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
5
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 0 → 0 9 → 18 → 9

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 + 7 + 0 + 7 + 1 + 8 + 24 = 65

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

The next multiple of ten after 65 is 70. The difference is the calculated check digit.

70 - 65 = 5
This NPI is valid
The calculated check digit is 5, which matches the last digit of 1265370795.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Pediatrics
1000 CAYUGA AVE, BALBOA TEEN HEALTH CENTER
SAN FRANCISCO, CA 94112
Nurse Practitioner (Community Health)
1000 CAYUGA AVE, BALBOA TEEN HEALTH CENTER
SAN FRANCISCO, CA 94112
Counselor (Addiction (Substance Use Disorder))
1000 CAYUGA AVE
SAN FRANCISCO, CA 94112
Marriage & Family Therapist
1000 CAYUGA AVE
SAN FRANCISCO, CA 94112
Student in an Organized Health Care Education/Training Program
1000 CAYUGA AVE
SAN FRANCISCO, CA 94112
Clinic/Center (Family Planning, Non-Surgical)
1000 CAYUGA AVE
SAN FRANCISCO, CA 94112
Behavior Analyst
1000 CAYUGA AVE
SAN FRANCISCO, CA 94112

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1265370795, enumerated as an "individual" on March 24, 2026.

The provider is located at 1000 CAYUGA AVE SAN FRANCISCO, CA 94112 and the phone number is (415) 469-4090.

Community Health Worker with taxonomy code 172V00000X.