ALEXA RAE MARZO MD
NPI 1659831378
Pediatrics - Pediatric Critical Care Medicine in St Petersburg, FL

Q: What is Alexa Marzo's NPI number?

The NPI number for Alexa Marzo is 1659831378. It was assigned to this individual provider in the NPPES registry on March 20, 2019.

Q: What is Alexa Marzo's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Q: When was this NPI record last updated?

The NPPES record for Alexa Marzo was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.

Active since March 20, 2019PECOS EnrolledAccepts Medicare Assignment

501 6TH AVE S, ST PETERSBURG, FL 33701(727) 767-4106(727) 767-8804 Get Directions Write a Review

NPPES record last updated: April 8, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

Record update history: Apr 8, 2026, Mar 20, 2019 (2 updates tracked since 2019).

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About Alexa Rae Marzo Md NPPES

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

ALEXA RAE MARZO MD (NPI 1659831378) is an individual pediatric critical care medicine provider in St Petersburg, Florida, licensed in Florida (ME156042) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins All Children's Hospital, and is a graduate of University Of Arizona College Of Medicine (2019).

NPPES Registry Identity

NPI1659831378

Entity TypeIndividualFemale

Primary Taxonomy2080P0203X

Provider Legal NameALEXA RAE MARZOCredential: MD

Location Address501 6TH AVE SSt Petersburg, FL 33701-4634

Mailing Address501 6th Ave SSt Petersburg, FL 33701-4634 · (727) 767-4106 · Fax (727) 767-8804

Phone(727) 767-4106

Fax(727) 767-8804

Sole ProprietorNo

Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2019

Enumeration DateMarch 20, 2019

Last NPPES UpdateApril 8, 20262 updates tracked since enumeration

NPPES CertifiedApril 8, 2026

✔ NPI 1659831378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code2080P0203X

License✔ Licensed in FL · ME156042

Definition

A pediatrician expert in advanced life support for children from the term or near-term neonate to the adolescent. This competence extends to the critical care management of life-threatening organ system failure from any cause in both medical and surgical patients and to the support of vital physiological functions. This specialist may have administrative responsibilities for intensive care units and also facilitates patient care among other specialists.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

501 6TH AVE S, St Petersburg, FL 33701

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Alexa Rae Marzo Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID6901397876

PECOS Enrollment IDI20251118004549

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.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Johns Hopkins All Children's Hospital

Childrens · Saint Petersburg, FL

OwnershipVoluntary non-profit - Private

CMS Certification Number103300

Location501 Sixth Avenue SouthSaint Petersburg, FL 33701 · Pinellas County

Emergency services

Other Providers at the Same Location NPPES 20

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

DR. STEPHEN ROGERS KENNEDY MD

Pediatrics

501 6TH AVE S
ST PETERSBURG, FL 33701

Pinellas County (727) 767-4243

DR. WILLIAM EDWARD SCHAAF JR. M.D.

Radiology (Pediatric Radiology)

501 6TH AVE S, DEPARTMENT OF RADIOLOGY
SAINT PETERSBURG, FL 33701

Pinellas County (727) 767-3318

KRISTY W PATEL MD

Hospitalist

501 6TH AVE S
ST PETERSBURG, FL 33701

Pinellas County (727) 767-4243

JENNIFER FOUTCH M.S.W.

Social Worker

501 6TH AVE S, DEPT.# 7470
ST PETERSBURG, FL 33701

Pinellas County (727) 767-6794

SUSAN BUFFINGTON

Nurse Practitioner (Pediatrics)

501 6TH AVE S, DEPT OF RADIOLOGY
ST PETERSBURG, FL 33701

Pinellas County (727) 767-3318

BRITTANY EASTER BOWER ARNP

Nurse Practitioner (Neonatal)

501 6TH AVE S
ST PETERSBURG, FL 33701

Pinellas County (727) 767-4313

DR. DERECK DAVY PHRATHEP PH.D.

Psychologist

501 6TH AVE S
ST PETERSBURG, FL 33701

Pinellas County (727) 767-4170

TARA MORDER

Nurse Practitioner (Neonatal)

501 6TH AVE S
ST PETERSBURG, FL 33701

Pinellas County (727) 767-4313

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 Alexa Marzo's NPI number?

The NPI number for Alexa Marzo is 1659831378. It was assigned to this individual provider in the NPPES registry on March 20, 2019.

Where is Alexa Marzo located?

Alexa Marzo practices at 501 6th Ave S, St Petersburg, FL 33701. The listed phone number is (727) 767-4106.

What is Alexa Marzo's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Critical Care Medicine, with taxonomy code 2080P0203X.

Is Alexa Marzo enrolled in Medicare?

Yes. Alexa Marzo is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Alexa Marzo affiliated with any hospitals?

According to CMS data, Alexa Marzo is affiliated with Johns Hopkins All Children's Hospital.

When was this NPI record last updated?

The NPPES record for Alexa Marzo was last updated on April 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.