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Allergy/Immunology

Juan C. Mas, MD

Works at hospitals in Palm Coast, FL · Saint Augustine, FL · Florida

Summary

Juan C. Mas, MD (Allergy/Immunology) is listed by Medicare at 3 hospitals in Palm Coast, FL and Saint Augustine, FL. NPI 1942386768. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Juan C. Mas, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Allergy/ImmunologyPrimary specialty
YesAccepts Medicare assignment
42Years since medical school (graduated 1984)
MaleGender (as listed)
Premier Allergist of Florida LLCGroup practice

Quick answers

Which hospitals does Juan C. Mas work at?
Medicare's official clinician data lists Juan C. Mas at 3 hospitals: AdventHealth Palm Coast, AdventHealth Palm Coast Parkway and Flagler Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Juan C. Mas see patients?
Medicare's clinician data lists 2 practice locations, including St Augustine, FL and Venice, FL. Call before your visit to confirm the address.
What is Juan C. Mas's specialty?
Medicare lists Allergy/Immunology as the primary specialty.
Does Juan C. Mas accept Medicare assignment?
Yes. Medicare's clinician data says Juan C. Mas accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Juan C. Mas?
(904) 826-3343, as listed in official Medicare / NPI Registry data.
What is Juan C. Mas's NPI number?
1942386768. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Juan C. Mas works

Medicare's Facility Affiliation Data lists Juan C. Mas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Juan C. Mas is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Juan C. Mas as a member of this group (CMS data updated 2026-10-02).

  • Premier Allergist of Florida LLC21 clinicians in the group

Specialties

Find other Allergy/Immunology doctors in Florida →

Other allergist and immunologists in Florida

Clinicians with the same Medicare primary specialty in Florida — not a recommendation.

All allergist and immunologists in Florida →

Clinician information

CredentialMD
Graduation year1984
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1942386768
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians