Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1023090800 Individual Practitioner Male Practitioner

Dr. Larry Mastrogianakis , MD

Pediatrics • Jacksonville, FL

Professional Overview & Biography Verified Profile Summary

Dr. Larry Mastrogianakis, MD is a registered healthcare professional specializing in Pediatrics in Jacksonville, FL. Practice services are available at 12428 SAN JOSE BLVD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

12428 San Jose Blvd
Ste 3

Jacksonville, FL 322238616

Telephone 9042609495
Fax 9042603009
Associated Practice Facility / Clinic

Specialty Benchmarks & Practice Insights

Comparative analytics for Pediatrics in Jacksonville, FL

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 23.6 Yrs
State Avg: 22.2 Yrs
Regional Practice Density
221 Specialists

Practicing in Jacksonville, FL (4160 Statewide)

Telehealth Adoption Rate
0.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

CMS Verified: 2025-07-23
Pediatrics Primary Specialty

NUCC Taxonomy Code: 208000000X

State License GA 65705

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.

Specialist

NUCC Taxonomy Code: 174400000X

State License FL ME44927

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

Hospitalist

NUCC Taxonomy Code: 208M00000X

State License FL 44927

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

7 Historical Events
NPI Profile Active January 28, 2014

NPI status registered as active in NPPES database

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Updated Practice Location January 28, 2014

Registered at 12428 SAN JOSE BLVD, STE 3, JACKSONVILLE, FL 322238616 (Tel: 9042609495)

📍
Updated Business Mailing Address January 28, 2014

Registered at 12428 SAN JOSE BLVD, STE 3, JACKSONVILLE, FL 322238616 (Tel: 9042609495)

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Provider Name / Credentials Updated January 28, 2014

Recorded as LARRY MASTROGIANAKIS, MD

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) January 28, 2014

Specialist (License #ME44927 in FL)

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Medical Taxonomy / Specialty Registered (Primary Specialty) January 28, 2014

Hospitalist (License #44927 in FL)

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Initial NPI Registration & Enumeration November 16, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1023090800
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 16, 2005
Last Update: July 23, 2025
Sole Proprietor: Yes

Mailing Address

12428 San Jose Blvd, Ste 3

Jacksonville, FL 322238616

Phone: 9042609495

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.