KATHERINE VARIN RN, PHN
NPI 1922924877
Registered Nurse - College Health in San Luis Obispo, CA

NPI Status: Active since June 25, 2026

Contact Information

1 GRAND AVE
SAN LUIS OBISPO, CA
ZIP 93407
Phone: (805) 756-1211

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  • Individual
  • Female
  • Registered Nurse
  • College Health

About KATHERINE VARIN

This page provides the complete NPI Profile along with additional information for Katherine Varin, a provider established in San Luis Obispo, California with a medical specialization in Registered Nurse, focusing in college health . The healthcare provider is registered in the NPI registry with number 1922924877 assigned on June 2026. The practitioner's primary taxonomy code is 163WC1400X with license number 95167629 (CA). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1922924877
Provider Name
KATHERINE VARIN RN, PHN
Gender
Female
Entity Type
Individual
Location Address
1 GRAND AVE SAN LUIS OBISPO, CA 93407
Location Phone
(805) 756-1211
Mailing Address
1319 HIGUERA ST SAN LUIS OBISPO, CA 93401
Mailing Phone
(949) 228-4794
Is Sole Proprietor?
No
Enumeration Date
06-25-2026
Last Update Date
06-25-2026

A registered nurse (RN) like Katherine Varin 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.

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

Registered Nurse College Health

Taxonomy Code
163WC1400X
Type
Nursing Service Providers
License No.
95167629
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 1922924877, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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
9
Unchanged
Pos 3
2
Doubled → 4
Pos 4
2
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
4
Doubled → 8
Pos 8
8
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 2 → 4 9 → 18 → 9 4 → 8 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 + 4 + 2 + 1 + 8 + 2 + 8 + 8 + 1 + 4 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1922924877.

Other Providers at the Same Location


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

Physician Assistant
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Emergency Medicine
1 GRAND AVE, CALIFORNIA POLYTECHNIC UNIVERSITY
SAN LUIS OBISPO, CA 93407
Family Medicine
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Family Medicine
1 GRAND AVE, CALIFORNIA POLYTECHNIC STATE UNIVERSITY SAN LUIS OBISPO
SAN LUIS OBISPO, CA 93407
Internal Medicine
1 GRAND AVE, CAL POLY STUDENT HEALTH SERVICES
SAN LUIS OBISPO, CA 93407
Psychologist (Clinical Child & Adolescent)
1 GRAND AVE, CAL POLY STATE UNIV.,PSYCHOLOGY & CHILD DEV. DEPARTMENT
SAN LUIS OBISPO, CA 93407
Specialist/Technologist (Athletic Trainer)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Specialist/Technologist (Athletic Trainer)
1 GRAND AVE, ATHLETICS
SAN LUIS OBISPO, CA 93407
Pharmacist
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Emergency Medicine
1 GRAND AVE, CAMPUS HEALTH AND WELL BEING BLDG 27
SAN LUIS OBISPO, CA 93407
Specialist/Technologist (Athletic Trainer)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Psychologist (Counseling)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Specialist/Technologist (Athletic Trainer)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
General Practice
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Family Medicine
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Specialist/Technologist (Athletic Trainer)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Specialist/Technologist (Athletic Trainer)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Physician Assistant
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Family Medicine
1 GRAND AVE
SAN LUIS OBISPO, CA 93407
Nurse Practitioner (Family)
1 GRAND AVE
SAN LUIS OBISPO, CA 93407

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1922924877, enumerated as an "individual" on June 25, 2026.

The provider is located at 1 GRAND AVE SAN LUIS OBISPO, CA 93407 and the phone number is (805) 756-1211.

Registered Nurse with taxonomy code 163WC1400X and a focus in College Health.