Doctor profile · Federal record

Dr. Devon Gillis, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Portland, ME

  • NPI 1134673445
  • Accepts Medicare
  • MIPS 93.1 / 100 · 2023
  • 10 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
22 Bramhall St
Portland, ME 041023175
(207) 662-2416

Credentials & registration

NPPES · NUCC
NPI registered
August 2016 — 10 yrs on file
Profile last updated
November 30, 2020
Year of graduation
2016 — 10 yrs since
Specialty taxonomy
363LP0808X — NUCC code
State license (1)
Maine #CNP161068

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134673445. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
89
Distinct HCPCS
2
Medicare allowed
$5,977
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 67 31 $66
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 22 21 $69

In context: peer comparison

Among 11 peers in Portland Psychiatric/Mental Health Nurse Practitioner, average services per provider: 96. This provider delivers 0.9× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Devon Gillis's medical specialty?
Dr. Devon Gillis practices Psychiatric/Mental Health Nurse Practitioner in Portland, ME.
Where does Dr. Devon Gillis practice?
Dr. Devon Gillis practices at 22 Bramhall St, Portland, ME 041023175. Office phone: 2076622416.
What is Dr. Devon Gillis's NPI?
Dr. Devon Gillis's National Provider Identifier (NPI) is 1134673445, issued by NPPES.
Does Dr. Devon Gillis accept Medicare assignment?
Yes. Dr. Devon Gillis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Devon Gillis commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low level of medical decision making (HCPCS 99221). Source: CMS Medicare Physician & Other Practitioners file.