Doctor profile · Federal record

Dr. Jennifer Mammen, NP

Nurse Practitioner · Nurse Practitioner · Portsmouth, RI

  • NPI 1154540243
  • Accepts Medicare
  • 27 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2444 E Main RD
Portsmouth, RI 028714025
(401) 683-4817
Mailing address
200 Mill RD
Fairhaven, MA 027195252

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
September 6, 2024
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
363L00000X — NUCC code
State licenses (2)
Rhode Island #APRN01824 · New York #335104
Medicaid
NY #02892840

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1154540243. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
53
Distinct HCPCS
2
Medicare allowed
$5,348
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 37 32 $111
99213 Established patient office or other outpatient visit, 20-29 minutes 16 16 $78

In context: peer comparison

Among 2 peers in this city , average services per provider: 94. This provider delivers 0.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
338
Patients
182
Total drug cost
$5,056
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 44 25 $504
Levothyroxine Sodium Generic 39 22 $705
Hydrochlorothiazide Generic 36 24 $266
Lisinopril Generic 36 22 $474
Simvastatin Generic 25 16 $330
Amlodipine Besylate Generic 24 14 $475
Omeprazole Generic 19 14 $369
Metoprolol Succinate Generic 16 12 $362
Montelukast Sodium Generic 16 0 $323
Fluoxetine Hcl Generic 14 0 $225

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Jennifer Mammen's medical specialty?
Dr. Jennifer Mammen practices Nurse Practitioner in Portsmouth, RI.
Where does Dr. Jennifer Mammen practice?
Dr. Jennifer Mammen practices at 2444 E Main RD, Portsmouth, RI 028714025. Office phone: 4016834817.
What is Dr. Jennifer Mammen's NPI?
Dr. Jennifer Mammen's National Provider Identifier (NPI) is 1154540243, issued by NPPES.
Does Dr. Jennifer Mammen accept Medicare assignment?
Yes. Dr. Jennifer Mammen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jennifer Mammen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.