Doctor profile · Federal record

Dr. James Mastrostefano, APRN-CNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Registered Nurse · Newport, RI

  • NPI 1083384036
  • Accepts Medicare
  • 5 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
50 Memorial Blvd
Newport, RI 028403636
(401) 606-4510
fax (401) 619-4784
Mailing address
117 Ellenfield St Ste 101
Providence, RI 029054541

Credentials & registration

NPPES · NUCC
NPI registered
September 2021 — 5 yrs on file
Profile last updated
December 15, 2021
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State licenses (2)
Rhode Island #APRN02825 · Rhode Island #RN1047330

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1083384036. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
492
Distinct HCPCS
10
Medicare allowed
$32,525
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 232 165 $78
99212 Established patient office or other outpatient visit, 10-19 minutes 43 40 $49
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 43 43 $103
99214 Established patient office or other outpatient visit, 30-39 minutes 38 35 $108
99442 Telephone medical discussion with physician, 11-20 minutes 31 26 $78
93000 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 22 22 $13
G0008 Administration of influenza virus vaccine 19 19 $31
90662 Influenza vaccine split virus, preservative free 18 18 $0
81002 Urinalysis, manual test 17 13 $3
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 15 15 $0

In context: peer comparison

Among 1 peers in Newport Family Nurse Practitioner, average services per provider: 44. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
791
Patients
365
Total drug cost
$10,207
Drug Type Claims Patients Total cost
Lisinopril Generic 93 41 $828
Atorvastatin Calcium Generic 74 29 $895
Gabapentin Generic 74 30 $1,304
Amlodipine Besylate Generic 70 29 $654
Levothyroxine Sodium Generic 66 26 $1,082
Losartan Potassium Generic 56 26 $931
Rosuvastatin Calcium Generic 47 22 $847
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 44 32 $1,344
Hydrochlorothiazide Generic 44 24 $135
Omeprazole Generic 41 18 $688

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. James Mastrostefano's medical specialty?
Dr. James Mastrostefano practices Family Nurse Practitioner in Newport, RI.
Where does Dr. James Mastrostefano practice?
Dr. James Mastrostefano practices at 50 Memorial Blvd, Newport, RI 028403636. Office phone: 4016064510.
What is Dr. James Mastrostefano's NPI?
Dr. James Mastrostefano's National Provider Identifier (NPI) is 1083384036, issued by NPPES.
Does Dr. James Mastrostefano accept Medicare assignment?
Yes. Dr. James Mastrostefano accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Mastrostefano commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99212); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.