JOHN MERSCH III M.D.
NPI 1588769558
Pediatrics in Ladera Ranch, CA

NPI Status: Active since September 14, 2006

Contact Information

777 CORPORATE DR
SUITE 250
LADERA RANCH, CA
ZIP 92694
Phone: (949) 388-1798

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  • Individual
  • Male
  • Pediatrics

About JOHN MERSCH

This page provides the complete NPI Profile along with additional information for John Mersch, a pediatrician established in Ladera Ranch, California with a medical specialization in Pediatrics. The healthcare provider is registered in the NPI registry with number 1588769558 assigned on September 2006. The practitioner's primary taxonomy code is 208000000X with license number G40887 (CA). The provider is registered as an individual and his NPI record was last updated 14 years ago.

NPI
1588769558
Provider Name
JOHN MERSCH III M.D.
Gender
Male
Entity Type
Individual
Location Address
777 CORPORATE DR SUITE 250 LADERA RANCH, CA 92694
Location Phone
(949) 388-1798
Mailing Address
23321 EL TORO RD SUITES F&G LAKE FOREST, CA 92630
Mailing Phone
(949) 770-0513
Is Sole Proprietor?
No
Enumeration Date
09-14-2006
Last Update Date
03-13-2012
Code Navigator

A pediatrician like John Mersch is a physician who has completed a pediatric residency and is board-certified or board-eligible in a pediatric specialty. Pediatric care providers are trained to care for newborns, infants, children and adolescents. A pediatrician could perform physical exams, manage vaccinations, monitor development milestones, diagnose illnesses, infections, injuries or other health problems, 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

Pediatrics

Taxonomy Code
208000000X
Type
Allopathic & Osteopathic Physicians
License No.
G40887
License State
CA
Taxonomy Description
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.

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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 1588769558, we treat the final digit (8) 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).

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
5
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
8
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 8 → 16 → 7 7 → 14 → 5 9 → 18 → 9 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 6 + 8 + 1 + 4 + 6 + 1 + 8 + 5 + 1 + 0 + 24 = 72

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

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1588769558.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Optometrist
777 CORPORATE DR, STE 200
LADERA RANCH, CA 92694
Optometrist
777 CORPORATE DR, STE 200
LADERA RANCH, CA 92694
Physical Therapist
777 CORPORATE DR, SUITE 160
LADERA RANCH, CA 92694
Physical Therapy Assistant
777 CORPORATE DR, STE 160
LADERA RANCH, CA 92694
Registered Nurse (Lactation Consultant)
777 CORPORATE DR, STE 250
LADERA RANCH, CA 92694
Pediatrics
777 CORPORATE DR, SUITE 250
LADERA RANCH, CA 92694
Dentist
777 CORPORATE DR, SUITE 100
LADERA RANCH, CA 92694
Physical Therapist
777 CORPORATE DR, SUITE 160
LADERA RANCH, CA 92694
Physical Therapist
777 CORPORATE DR, SUITE 160
LADERA RANCH, CA 92694
Physician Assistant (Medical)
777 CORPORATE DR, STE 150
LADERA RANCH, CA 92694
Dentist (Orthodontics and Dentofacial Orthopedics)
777 CORPORATE DR, 210
LADERA RANCH, CA 92694
Dentist (Orthodontics and Dentofacial Orthopedics)
777 CORPORATE DR, SUITE 210
LADERA RANCH, CA 92694
Chiropractor
777 CORPORATE DR, STE 130
LADERA RANCH, CA 92694
Dentist
777 CORPORATE DR, SUITE 100
LADERA RANCH, CA 92694

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1588769558, enumerated as an "individual" on September 14, 2006.

The provider is located at 777 CORPORATE DR SUITE 250 LADERA RANCH, CA 92694 and the phone number is (949) 388-1798.

Pediatrics with taxonomy code 208000000X.