Doctor profile · Federal record

Dr. Patrick Mailloux, DO

Critical Care Medicine (Internal Medicine) Physician (CMS: Pulmonary Disease) · South Portland, ME

  • NPI 1689697708
  • Accepts Medicare
  • MIPS 93.1 / 100 · 2023
  • 27 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
100 Foden RD Ste 103
South Portland, ME 041062327
(207) 828-1122
fax (207) 828-0188
Additional location
759 Chestnut Street, S2668
Springfield, MA 011991001
(413) 794-5439
fax (413) 794-5389

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
March 24, 2026
Year of graduation
1999 — 27 yrs since
Specialty taxonomy
207RC0200X — NUCC code
State license (1)
Maine #DO2770

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1689697708. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
223
Distinct HCPCS
2
Medicare allowed
$37,658
HCPCS Description Services Patients Avg allowed
99291 Critical care, first 30-74 minutes 132 82 $206
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 91 64 $115

In context: peer comparison

Among 1 peers in South Portland Critical Care Medicine (Internal Medicine) Physician, average services per provider: 111. This provider delivers 2.0× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Patrick Mailloux's medical specialty?
Dr. Patrick Mailloux practices Critical Care Medicine (Internal Medicine) Physician in South Portland, ME.
Where does Dr. Patrick Mailloux practice?
Dr. Patrick Mailloux practices at 100 Foden RD Ste 103, South Portland, ME 041062327. Office phone: 2078281122.
What is Dr. Patrick Mailloux's NPI?
Dr. Patrick Mailloux's National Provider Identifier (NPI) is 1689697708, issued by NPPES.
Does Dr. Patrick Mailloux accept Medicare assignment?
Yes. Dr. Patrick Mailloux accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Patrick Mailloux commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.