MS. KARIN DEL ROCIO MONTEMAYOR RN
NPI 1932047271
Registered Nurse - Administrator in San Marcos, CA

NPI Status: Active since March 24, 2026

Contact Information

150 VALPREDA RD
SAN MARCOS, CA
ZIP 92069
Phone: (760) 736-6767

NPI Profile Information
Primary Taxonomy
Group Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Registered Nurse
Administrator

About KARIN MONTEMAYOR

This page provides the complete NPI Profile along with additional information for Karin Montemayor, a provider established in San Marcos, California with a medical specialization in Registered Nurse, focusing in administrator . The healthcare provider is registered in the NPI registry with number 1932047271 assigned on March 2026. The practitioner's primary taxonomy code is 163WA2000X with license number 688054 (CA). The provider is registered as an individual and her NPI record was last updated March 2026. Karin Montemayor operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.

NPI: 1932047271
Provider Name: MS. KARIN DEL ROCIO MONTEMAYOR RN
Gender: Female
Entity Type: Individual
Location Address: 150 VALPREDA RD SAN MARCOS, CA 92069
Location Phone: (760) 736-6767
Mailing Address: 150 VALPREDA RD SAN MARCOS, CA 92069
Mailing Phone: (760) 566-1560
Is Sole Proprietor?: Yes
Enumeration Date: 03-24-2026
Last Update Date: 03-24-2026
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A registered nurse (RN) like Karin Montemayor coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.

Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.

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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: Registered Nurse Administrator
Taxonomy Code: 163WA2000X
Type: Nursing Service Providers
License No.: 688054
License State: CA

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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 1932047271, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

Check

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 0 → 0 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 + 9 + 6 + 2 + 0 + 4 + 1 + 4 + 2 + 1 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1

This NPI is valid

The calculated check digit is 1, which matches the last digit of 1932047271.