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

Active since September 14, 2006
777 CORPORATE DR, SUITE 250, LADERA RANCH, CA 92694(949) 388-1798 Get Directions Write a Review

NPPES record last updated: March 13, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About John Mersch Iii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN MERSCH III M.D. (NPI 1588769558) is an individual pediatrics provider in Ladera Ranch, California, licensed in California (G40887) and active in the NPI registry since September 2006.

NPPES Registry Identity

NPI1588769558
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameJOHN MERSCH IIICredential: M.D.
Location Address777 CORPORATE DR, SUITE 250Ladera Ranch, CA 92694-2135
Mailing Address23321 El Toro Rd, Suites F&gLake Forest, CA 92630-4825 · (949) 770-0513
Phone(949) 388-1798
Sole ProprietorNo
Enumeration DateSeptember 14, 2006
Last NPPES UpdateMarch 13, 2012
✔ NPI 1588769558 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · G40887
Definition
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.
777 CORPORATE DR, Ladera Ranch, CA 92694
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Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. DAVID C MANAGO D.C.
Chiropractor
777 CORPORATE DR, STE 130
LADERA RANCH, CA 92694
Orange County (949) 364-5656
LINDA ANNE RANK PA-C
Physician Assistant (Medical)
777 CORPORATE DR, STE 150
LADERA RANCH, CA 92694
Orange County (949) 481-8881
MRS. JILL DANIELLE KOPENY
Physical Therapy Assistant
777 CORPORATE DR, STE 160
LADERA RANCH, CA 92694
Orange County (949) 472-2242
DR. KENSON LO M.D.
Pediatrics
777 CORPORATE DR, SUITE 250
LADERA RANCH, CA 92694
Orange County (949) 388-1798
LADERA RANCH PHYSICAL THERAPY
Physical Therapist
777 CORPORATE DR, SUITE 160
LADERA RANCH, CA 92694
Orange County (949) 472-2242
DR. MONIQUE MAIHUONG NGUYEN OD
Optometrist
777 CORPORATE DR, STE 200
LADERA RANCH, CA 92694
Orange County (949) 364-4455
BADII LEE DENTAL CORPORATION, INC
Dentist (Orthodontics and Dentofacial Orthopedics)
777 CORPORATE DR, SUITE 210
LADERA RANCH, CA 92694
Orange County (949) 364-0590
FEHRENBACH, YOSHINO, LLC
Physical Therapist
777 CORPORATE DR, SUITE 160
LADERA RANCH, CA 92694
Orange County (949) 472-2242

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Mersch's NPI number?

The NPI number for John Mersch is 1588769558. It was assigned to this individual provider in the NPPES registry on September 14, 2006.

Where is John Mersch located?

John Mersch practices at 777 Corporate Dr Suite 250, Ladera Ranch, CA 92694. The listed phone number is (949) 388-1798.

What is John Mersch's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

When was this NPI record last updated?

The NPPES record for John Mersch was last updated on March 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.