MR. CARL EVAN MASCARINAS BIRONDO NP-C
NPI 1376012567
Nurse Practitioner - Family in Santa Monica, CA

Active since November 16, 2018
2121 WILSHIRE BLVD STE 303, SANTA MONICA, CA 90403(888) 777-1945(805) 413-9099 Get Directions Write a Review

NPPES record last updated: December 19, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Dec 19, 2025, Nov 16, 2018 (2 updates tracked since 2018).

  • Individual
  • Male
  • Nurse Practitioner
  • Family

About CARL EVAN BIRONDO

This page provides the complete NPI Profile along with additional information for Carl Evan Birondo, a provider established in Santa Monica, California with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1376012567 assigned on November 2018. The practitioner's primary taxonomy code is 363LF0000X with license number 95010351 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1376012567
Provider Name
MR. CARL EVAN MASCARINAS BIRONDO NP-C
Gender
Male
Entity Type
Individual
Location Address
2121 WILSHIRE BLVD STE 303 SANTA MONICA, CA 90403
Location Phone
(888) 777-1945
Location Fax
(805) 413-9099
Mailing Address
4441 ELIZABETH ST CUDAHY, CA 90201
Mailing Phone
(213) 399-7948
Is Sole Proprietor?
No
Enumeration Date
11-16-2018
Last Update Date
12-19-2025
Code Navigator

A nurse practitioner (NP) like Carl Evan Birondo 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

Secondary Locations

  • 2720 N Harbor Blvd Ste 200
    Fullerton, CA 92835
    (888) 777-1945
  • 440 N Mountain Ave Ste 103
    Upland, CA 91786
    (888) 777-1945
  • 1235 E St
    Fresno, CA 93706
    (559) 268-6261
  • 4441 Elizabeth St
    Cudahy, CA 90201
    (213) 399-7948
  • 333 University Ave Ste 140
    Sacramento, CA 95825
    (888) 777-1945
  • 27555 Ynez Rd Ste 370
    Temecula, CA 92591
    (888) 777-1945
  • 4520 Executive Dr Ste 227
    San Diego, CA 92121
    (888) 777-1945
  • 79440 Corporate Center Dr Ste 101
    LA Quinta, CA 92253
    (888) 777-1945
  • 1310 M St
    Fresno, CA 93721
    (559) 264-2700
  • 23456 Hawthorne Blvd Ste 240
    Torrance, CA 90505
    (888) 777-1945
  • 501 N Central Ave
    Glendale, CA 91203
    (888) 777-1945
  • 77 Rolling Oaks Dr Ste 201
    Thousand Oaks, CA 91361
    (888) 777-1945
  • 24012 Calle De La Plata Ste 230
    Laguna Hills, CA 92653
    (888) 777-1945
  • 3103 E Cartwright Ave
    Fresno, CA 93725
    (559) 498-7100
  • 539 N Van Ness Ave
    Fresno, CA 93728
    (559) 266-9581

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.
95010351
License State
CA

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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 1376012567, 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 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
7
Doubled → 14 → 1 + 4
Pos 4
6
Unchanged
Pos 5
0
Doubled → 0
Pos 6
1
Unchanged
Pos 7
2
Doubled → 4
Pos 8
5
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
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 7 → 14 → 5 0 → 0 2 → 4 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 4 + 6 + 0 + 1 + 4 + 5 + 1 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1376012567.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Nurse Practitioner
2121 WILSHIRE BLVD STE 303
SANTA MONICA, CA 90403
Nurse Practitioner (Family)
2121 WILSHIRE BLVD STE 303
SANTA MONICA, CA 90403
Nurse Practitioner (Family)
2121 WILSHIRE BLVD STE 303
SANTA MONICA, CA 90403

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1376012567, enumerated as an "individual" on November 16, 2018.

The provider is located at 2121 WILSHIRE BLVD STE 303 SANTA MONICA, CA 90403 and the phone number is (888) 777-1945.

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