SANDRA MAZZEI NP
NPI 1346036852
Nurse Practitioner - Family in Pomona, CA

NPI Status: Active since April 19, 2025

Contact Information

1798 N GAREY AVE
POMONA, CA
ZIP 91767
Phone: (909) 865-9500

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  • Individual
  • Female
  • Nurse Practitioner
  • Family

About SANDRA MAZZEI

This page provides the complete NPI Profile along with additional information for Sandra Mazzei, a provider established in Pomona, California with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1346036852 assigned on April 2025. The practitioner's primary taxonomy code is 363LF0000X with license number 2024089864 (CA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1346036852
Provider Name
SANDRA MAZZEI NP
Gender
Female
Entity Type
Individual
Location Address
1798 N GAREY AVE POMONA, CA 91767
Location Phone
(909) 865-9500
Mailing Address
13624 CLINTON DR CHINO, CA 91710
Mailing Phone
(909) 967-0977
Is Sole Proprietor?
Yes
Enumeration Date
04-19-2025
Last Update Date
04-21-2025
Code Navigator

A nurse practitioner (NP) like Sandra Mazzei is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

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

Nurse Practitioner Family

Taxonomy Code
363LF0000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
2024089864
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 1346036852, 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
3
Unchanged
Pos 3
4
Doubled → 8
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
8
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 4 → 8 0 → 0 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 8 + 6 + 0 + 3 + 1 + 2 + 8 + 1 + 0 + 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 1346036852.

Other Providers at the Same Location


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

Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE, POMONA VALLEY HOSP MEDICAL CENTER
POMONA, CA 91767
Nurse Practitioner (Adult Health)
1798 N GAREY AVE
POMONA, CA 91767
Specialist
1798 N GAREY AVE
POMONA, CA 91767
Radiology (Diagnostic Radiology)
1798 N GAREY AVE
POMONA, CA 91767
Physician Assistant
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767
Anesthesiology
1798 N GAREY AVE
POMONA, CA 91767

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1346036852, enumerated as an "individual" on April 19, 2025.

The provider is located at 1798 N GAREY AVE POMONA, CA 91767 and the phone number is (909) 865-9500.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.