Doctor profile · Federal record

Dr. Katherine Rossiter, FNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Portland, ME

  • NPI 1386214716
  • Accepts Medicare
  • MIPS 93.1 / 100 · 2023
  • 6 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
161 Marginal Way
Portland, ME 041012438
(207) 773-7964
fax (207) 773-9073

Credentials & registration

NPPES · NUCC
NPI registered
June 2021 — 5 yrs on file
Profile last updated
September 13, 2022
Year of graduation
2020 — 6 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Maine #CNP201146

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386214716. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
91
Distinct HCPCS
2
Medicare allowed
$8,405
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 51 37 $106
99213 Established patient office or other outpatient visit, 20-29 minutes 40 34 $74

In context: peer comparison

Among 29 peers in Portland Family Nurse Practitioner, average services per provider: 59. This provider delivers 1.5× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
55
Patients
18
Total drug cost
$970
Drug Type Claims Patients Total cost
Omeprazole Generic 35 18 $621
Famotidine Generic 20 0 $348

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Rossiter's medical specialty?
Dr. Katherine Rossiter practices Family Nurse Practitioner in Portland, ME.
Where does Dr. Katherine Rossiter practice?
Dr. Katherine Rossiter practices at 161 Marginal Way, Portland, ME 041012438. Office phone: 2077737964.
What is Dr. Katherine Rossiter's NPI?
Dr. Katherine Rossiter's National Provider Identifier (NPI) is 1386214716, issued by NPPES.
Does Dr. Katherine Rossiter accept Medicare assignment?
Yes. Dr. Katherine Rossiter accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Rossiter 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.