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LARRY MASTROGIANAKIS MD
NPI 1023090800
Pediatrics in Jacksonville, FL

Active since November 16, 2005PECOS Enrolled
12428 SAN JOSE BLVD, STE 3, JACKSONVILLE, FL 32223(904) 260-9495(904) 260-3009 Get Directions Write a Review

NPPES record last updated: July 23, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Larry Mastrogianakis Md NPPES

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

LARRY MASTROGIANAKIS MD (NPI 1023090800) is an individual pediatrics provider in Jacksonville, Florida, licensed in Georgia (65705) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1023090800
Entity TypeIndividualMale
Primary Taxonomy208000000X
Provider Legal NameLARRY MASTROGIANAKISCredential: MD
Location Address12428 SAN JOSE BLVD, STE 3Jacksonville, FL 32223-8616
Mailing Address12428 San Jose Blvd, Ste 3Jacksonville, FL 32223-8616 · (904) 260-9495 · Fax (904) 260-3009
Phone(904) 260-9495
Fax(904) 260-3009
Sole ProprietorYes
Enumeration DateNovember 16, 2005
Last NPPES UpdateJuly 23, 2025
NPPES CertifiedJuly 23, 2025
✔ NPI 1023090800 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in GA · 65705
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.
Also ListedSpecialistTaxonomy 174400000X · License ME44927 (FL)
Also ListedHospitalistTaxonomy 208M00000X · License 44927 (FL)
12428 SAN JOSE BLVD, Jacksonville, FL 32223
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Florida Blue (BlueCross BlueShield FL), Florida Blue HMO (a BlueCross BlueShield FL company).Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Larry Mastrogianakis Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

4

Medicare enrollment records show Larry Mastrogianakis reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

St Vincents Ambulatory Care Inc
13 mi
Neurological Surgery
2 SHIRCLIFF WAY, SUITE 600
Jacksonville, FL 32204
  • Reassigned Medicare billing, Florida enrollment
  • Medicare enrollment name: St Vincent's Ambulatory Care Inc
  • 544 clinicians in this Medicare group
NPI 1417987124 (904) 308-6769
Paragon Emergency Services LLC
145 mi
Emergency Medicine
200 AVENUE F NE
Winter Haven, FL 33881
  • Reassigned Medicare billing, Florida enrollment
  • 1,065 clinicians in this Medicare group
NPI 1912101650 (863) 293-1121
Health Services Of Central Georgia, Inc
220 mi
Multi-Specialty
777 HEMLOCK ST
Macon, GA 31201
  • Reassigned Medicare billing, Georgia enrollment
  • 483 clinicians in this Medicare group
NPI 1184679482 (478) 633-6713
Hospital Physician Services Of Florida PA
335 mi
Hospitalist
8383 N DAVIS HWY
Pensacola, FL 32514
  • Reassigned Medicare billing, Florida enrollment
  • 601 clinicians in this Medicare group
NPI 1558718635 (850) 494-4000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 32223 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$87.62 typical visit price
range $56.00 – $171.84
Typical copayment $21.90 (range $14.00 – $42.96)
Most-billed visit code 99203
Established Patient
$99.16 typical visit price
range $17.57 – $139.16
Typical copayment $24.79 (range $4.39 – $34.79)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

Documentation of Current Medications in the Medical Record
Percentage of visits for patients aged 18 years and older for which the eligible professional or eligible clinician attests to documenting a list of current medications using all immediate resources available on the date of the encounter.
98%62 patients4/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
95%397 patients4/55-star benchmark: 99%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
15%110 patients1/55-star benchmark: 88%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
100%228 patients5/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
77%625 patients4/55-star benchmark: 97%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
57%42 patients3/55-star benchmark: 97%
Preventive Care and Screening: Screening for Depression and Follow-Up Plan
Percentage of patients aged 12 years and older screened for depression on the date of the encounter using an age appropriate standardized depression screening tool AND if positive, a follow-up plan is documented on the date of the positive screen
14%208 patients1/55-star benchmark: 96%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 61% · 23 patients
57%23 patients3/55-star benchmark: 98%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
71%625 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
2%625 patients1/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
22%625 patients
Weight Assessment and Counseling for Nutrition and Physical Activity for Children and Adolescents
Percentage of patients 3-17 years of age who had an outpatient visit with a Primary Care Physician (PCP) or Obstetrician/Gynecologist (OB/GYN) and who had evidence of the following during the measurement period. Three rates are reported.
Patients nutrition: 15% · 457 patients
Patients physicalActivity: 15% · 457 patients
89%457 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 2

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

FOLAND CHIROPRACTIC & SPA, INC.
Chiropractor
12428 SAN JOSE BLVD, SUITE 2
JACKSONVILLE, FL 32223
Duval County (904) 288-8993
CYU HURT CHIROPRACTIC, LLC
Chiropractor
12428 SAN JOSE BLVD
JACKSONVILLE, FL 32223
Duval County (904) 683-5041

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 Larry Mastrogianakis's NPI number?

The NPI number for Larry Mastrogianakis is 1023090800. It was assigned to this individual provider in the NPPES registry on November 16, 2005.

Where is Larry Mastrogianakis located?

Larry Mastrogianakis practices at 12428 San Jose Blvd Ste 3, Jacksonville, FL 32223. The listed phone number is (904) 260-9495.

What is Larry Mastrogianakis's specialty?

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

Is Larry Mastrogianakis enrolled in Medicare?

Yes. Larry Mastrogianakis is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Larry Mastrogianakis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Larry Mastrogianakis reassigns Medicare benefits to 4 organizations: St Vincents Ambulatory Care Inc (Jacksonville, FL), Paragon Emergency Services LLC (Winter Haven, FL), Health Services Of Central Georgia, Inc (Macon, GA) and Hospital Physician Services Of Florida PA (Pensacola, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Larry Mastrogianakis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Larry Mastrogianakis accept?

Health plans from Florida Blue (BlueCross BlueShield FL) and Florida Blue HMO (a BlueCross BlueShield FL company) list Larry Mastrogianakis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Larry Mastrogianakis was last updated on July 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months 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.