NPIMap

Individual provider Active NPI

Patrick T Mailloux, DO

  • Critical Care Medicine (Internal Medicine) Physician
  • South Portland, ME
National Provider Identifier
1689697708
Registry record updated Mar 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X
License
DO2770 Issued in ME
Practice address
100 Foden Rd Ste 103
South Portland, ME 04106-2327
Phone
(207) 828-1122
Fax
(207) 828-0188
NPI assigned
Jul 26, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Mar 24, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Critical Care Medicine (Internal Medicine) Physician 207RC0200X DO2770 ME Primary

Addresses

Primary practice location

100 Foden Rd Ste 103
South Portland, ME 04106-2327

Mailing address

100 Foden Rd Ste 103
South Portland, ME 04106-2327
Phone (207) 828-1122

Other practice location 1

759 Chestnut Street
S2668
Springfield, MA 01199-1001
Phone (413) 794-5439

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20180522002541 ME Practitioner - Pulmonary Disease 6507853611 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary Disease
Education
New York College of Osteo Medicine of New York Institute of Technology, 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Chest Medicine Associates PAGroup PAC ID 0547258931, 30 clinicians

Practice addresses (Care Compare)

100 Foden Rd
Suite 103
South Portland, ME 04106-2327
Phone (207) 828-1122

Hospital & facility affiliations

  • Mainehealth Maine Medical Center Hospital, Portland, ME, CCN 200009

Merit-based Incentive Payment System (MIPS)

Final score
97.93 of 100Reported as apm
Quality
83.31
Promoting interoperability
100
Improvement activities
40

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy, Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Chest Medicine Associates, PA CurrentSince Jun 25, 2018 Accepting new patients
Critical Care Services, P.C. Critical Care Medicine Past Accepting new patients
Washington Metropolitan Practice Plan Past Accepting new patients
Mainehealth Past Accepting new patients

Locations

22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179

100 Foden Rd
Ste 103
South Portland, ME 04106
Phone (207) 828-1122

100 Foden Rd
#103
South Portland, ME 04106
Phone (207) 828-1122

Interoperability endpoints

  • Direct secure messaging: patrick.mailloux.p1@direct.cma.nextgenshare.com

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 36

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 36

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1153872000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774310400000",
    "number": "1689697708",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "100 FODEN RD STE 103",
            "city": "SOUTH PORTLAND",
            "state": "ME",
            "postal_code": "041062327",
            "telephone_number": "207-828-1122",
            "fax_number": "207-828-0188"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "100 FODEN RD STE 103",
            "city": "SOUTH PORTLAND",
            "state": "ME",
            "postal_code": "041062327",
            "telephone_number": "207-828-1122",
            "fax_number": "207-828-0188"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "759 Chestnut Street",
            "address_2": "S2668",
            "address_purpose": "LOCATION",
            "city": "Springfield",
            "state": "MA",
            "postal_code": "011991001",
            "country_code": "US",
            "telephone_number": "413-794-5439",
            "fax_number": "413-794-5389",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MAILLOUX",
        "first_name": "PATRICK",
        "middle_name": "T",
        "name_prefix": "Dr.",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-26",
        "last_updated": "2026-03-24",
        "certification_date": "2026-03-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "ME",
            "license": "DO2770",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in South Portland, ME

Sources for this page

Verify at the official NPI Registry.