DR. FIORE MASTROIANNI MD
NPI 1497141220
Internal Medicine - Pulmonary Disease in Port Jefferson, NY

Active since April 08, 2015PECOS EnrolledAccepts Medicare Assignment
84.47/100
CMS Quality Rating
75 N COUNTRY RD, PORT JEFFERSON, NY 11777(631) 473-1320 Get Directions Write a Review

NPPES record last updated: May 11, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 11, 2023, Aug 9, 2022, Aug 2, 2022 and 1 more (4 updates tracked since 2021).

About Dr. Fiore Mastroianni Md NPPES

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

DR. FIORE MASTROIANNI MD (NPI 1497141220) is an individual pulmonary disease provider in Port Jefferson, New York, licensed in New York (292752) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Nyu Langone Hospitals, and is a graduate of Other (2015).

NPPES Registry Identity

NPI1497141220
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. FIORE MASTROIANNICredential: MD
Location Address75 N COUNTRY RDPort Jefferson, NY 11777-2119
Mailing Address75 N Country RdPort Jefferson, NY 11777-2119
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateApril 8, 2015
Last NPPES UpdateMay 11, 20234 updates tracked since enumeration
NPPES CertifiedMay 11, 2023
✔ NPI 1497141220 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in NY · 292752
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 292752 (NY)
75 N COUNTRY RD, Port Jefferson, NY 11777

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Fiore Mastroianni 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 ID3173867868
PECOS Enrollment IDI20210706000540
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

2

Medicare enrollment records show Fiore Mastroianni reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Urology
1010 NORTHERN BLVD STE 110
Great Neck, NY 11021
  • Reassigned Medicare billing, New York enrollment
  • 9,353 clinicians in this Medicare group
Cardiovascular Disease
3301 QUANTUM BLVD
Boynton Beach, FL 33426
  • Reassigned Medicare billing, New York enrollment
  • 2,450 clinicians in this Medicare group

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

Areas of Expertise CMS Part B claims 26

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
272 services150 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
128 services98 patients
Therapeutic procedures to improve respiratory function or increase strength or endurance of respiratory muscles, two or more individuals (includes monitoring) G0239
This service involves therapeutic activities designed to enhance your respiratory function. It includes exercises to strengthen your respiratory muscles and improve endurance. The process is closely monitored by professionals to ensure safety and effectiveness.
126 services57 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
124 services70 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
114 services57 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
104 services103 patients

Hospital Affiliations CMS Care Compare

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

Nyu Langone Hospitals

Acute Care Hospitals · New York, NY
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number330214
Location550 First AvenueNew York, NY 10016 · New York County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11777 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
$154.28 typical visit price
range $67.40 – $203.53
Typical copayment $38.57 (range $16.85 – $50.88)
Most-billed visit code 99204
Established Patient
$117.62 typical visit price
range $21.66 – $164.45
Typical copayment $29.40 (range $5.41 – $41.11)
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.

84.47/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality93.33
Promoting Interoperability100
Improvement Activities40
Cost54.91

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.

Student in an Organized Health Care Education/Training Program
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Dermatology
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Student in an Organized Health Care Education/Training Program
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Physician Assistant
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Internal Medicine
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Nurse Practitioner (Family)
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Internal Medicine
75 N COUNTRY RD
PORT JEFFERSON, NY 11777
Student in an Organized Health Care Education/Training Program
75 N COUNTRY RD
PORT JEFFERSON, NY 11777

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 Fiore Mastroianni's NPI number?

The NPI number for Fiore Mastroianni is 1497141220. It was assigned to this individual provider in the NPPES registry on April 8, 2015.

Where is Fiore Mastroianni located?

Fiore Mastroianni practices at 75 N Country Rd, Port Jefferson, NY 11777. The listed phone number is (631) 473-1320.

What is Fiore Mastroianni's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Fiore Mastroianni enrolled in Medicare?

Yes. Fiore Mastroianni 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.

Which organizations bill Medicare for Fiore Mastroianni's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Fiore Mastroianni reassigns Medicare benefits to 2 organizations: North Shore-Lij Medical PC (Great Neck, NY) and New York University (Boynton Beach, 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 Fiore Mastroianni's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Fiore Mastroianni affiliated with any hospitals?

According to CMS data, Fiore Mastroianni is affiliated with Nyu Langone Hospitals.

When was this NPI record last updated?

The NPPES record for Fiore Mastroianni was last updated on May 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.