Doctor profile · Federal record

Dr. Marissa Ross, PMHNP

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Psychiatric/Mental Health Nurse Practitioner · Boston, MA

  • NPI 1255913109
  • Accepts Medicare
  • 5 yrs in practice
  • Licensed in 2 states
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1 Emerson Pl Ste 3H
Boston, MA 021142252
(617) 397-3951
Additional location
124 Watertown St Ste 2D
Watertown, MA 024722500
(617) 916-5096
Mailing address
8 Fairview Cir
Groveland, MA 018341309

Credentials & registration

NPPES · NUCC
NPI registered
April 2021 — 5 yrs on file
Profile last updated
February 26, 2024
Year of graduation
2021 — 5 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State licenses (2)
Massachusetts #RN2293349 · New Hampshire #070155-23

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1255913109. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
46
Distinct HCPCS
1
Medicare allowed
$5,037
HCPCS Description Services Patients Avg allowed
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 46 26 $110

In context: peer comparison

Among 29 peers in Boston Psychiatric/Mental Health Nurse Practitioner, average services per provider: 80. This provider delivers 0.6× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$74
Drug Type Claims Patients Total cost
Risperidone Generic 14 0 $74

Frequently asked questions

Auto-generated from federal data
What is Dr. Marissa Ross's medical specialty?
Dr. Marissa Ross practices Psychiatric/Mental Health Nurse Practitioner in Boston, MA.
Where does Dr. Marissa Ross practice?
Dr. Marissa Ross practices at 1 Emerson Pl Ste 3H, Boston, MA 021142252. Office phone: 6173973951.
What is Dr. Marissa Ross's NPI?
Dr. Marissa Ross's National Provider Identifier (NPI) is 1255913109, issued by NPPES.
Does Dr. Marissa Ross accept Medicare assignment?
Yes. Dr. Marissa Ross accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marissa Ross commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349). Source: CMS Medicare Physician & Other Practitioners file.