Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

VIANCA MARIELA GUZMAN
NPI 1336827377
Adult Companion in Chula Vista, CA

Active since July 10, 2023
318 4TH AVE, CHULA VISTA, CA 91910(619) 420-3620 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Apr 4, 2025, Mar 28, 2025, Jul 14, 2023 (3 updates tracked since 2023).

  • Individual
  • Female
  • Adult Companion

About VIANCA GUZMAN

This page provides the complete NPI Profile along with additional information for Vianca Guzman, a provider established in Chula Vista, California with a medical specialization in Adult Companion. The healthcare provider is registered in the NPI registry with number 1336827377 assigned on July 2023. The practitioner's primary taxonomy code is 372600000X. The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1336827377
Provider Name
VIANCA MARIELA GUZMAN
Gender
Female
Entity Type
Individual
Location Address
318 4TH AVE CHULA VISTA, CA 91910
Location Phone
(619) 420-3620
Mailing Address
318 4TH AVE CHULA VISTA, CA 91910
Mailing Phone
(619) 420-3620
Is Sole Proprietor?
Yes
Enumeration Date
07-10-2023
Last Update Date
06-29-2026
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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

Adult Companion

Taxonomy Code
372600000X
Type
Nursing Service Related Providers
Taxonomy Description
An individual who provides supervision, socialization, and non-medical care to a functionally impaired adult. Companions may assist or supervise the individual with such tasks as meal preparation, laundry and shopping, but do not perform these activities as discrete services. These services are provided in accordance with a therapeutic goal in the plan of care.

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)
1172V00000XOther Service Providers

Community Health Worker

 

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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 1336827377, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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
3
Unchanged
Pos 3
3
Doubled → 6
Pos 4
6
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
2
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
3
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
7
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 3 → 6 8 → 16 → 7 7 → 14 → 5 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 1 + 6 + 2 + 1 + 4 + 3 + 1 + 4 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1336827377.

Other Providers at the Same Location


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

Counselor
318 4TH AVE
CHULA VISTA, CA 91910
Counselor (Professional)
318 4TH AVE
CHULA VISTA, CA 91910
Marriage & Family Therapist
318 4TH AVE
CHULA VISTA, CA 91910
Marriage & Family Therapist
318 4TH AVE
CHULA VISTA, CA 91910
Marriage & Family Therapist
318 4TH AVE
CHULA VISTA, CA 91910
Marriage & Family Therapist
318 4TH AVE
SAN DIEGO, CA 91910
Marriage & Family Therapist
318 4TH AVE
CHULA VISTA, CA 91910
Day Training/Habilitation Specialist
318 4TH AVE
CHULA VISTA, CA 91910
Case Manager/Care Coordinator
318 4TH AVE
CHULA VISTA, CA 91910
Day Training/Habilitation Specialist
318 4TH AVE
CHULA VISTA, CA 91910
Registered Nurse (Psychiatric/Mental Health)
318 4TH AVE
CHULA VISTA, CA 91910
Community Health Worker
318 4TH AVE
CHULA VISTA, CA 91910
Community Health Worker
318 4TH AVE
CHULA VISTA, CA 91910
Community Health Worker
318 4TH AVE
CHULA VISTA, CA 91910
Community Health Worker
318 4TH AVE
CHULA VISTA, CA 91910
Community/Behavioral Health
318 4TH AVE
CHULA VISTA, CA 91910
Community/Behavioral Health
318 4TH AVE
CHULA VISTA, CA 91910
Social Worker (Clinical)
318 4TH AVE
CHULA VISTA, CA 91910
Student in an Organized Health Care Education/Training Program
318 4TH AVE
CHULA VISTA, CA 91910
Counselor (Professional)
318 4TH AVE
CHULA VISTA, CA 91910

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336827377, enumerated as an "individual" on July 10, 2023.

The provider is located at 318 4TH AVE CHULA VISTA, CA 91910 and the phone number is (619) 420-3620.

Adult Companion with taxonomy code 372600000X.