NPIMap

Individual provider Active NPI

Walter Harold Dowling, PA-C

  • Physician Assistant
  • Portland, ME
National Provider Identifier
1386231645
Registry record updated Dec 22, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
PA2594 Issued in ME
Practice address
22 Bramhall St
Portland, ME 04102-3175
Phone
(207) 662-2934
NPI assigned
Dec 21, 2020
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Dec 22, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Surgical Physician Assistant 363AS0400X PA2594 ME
Physician Assistant 363A00000X PA2594 ME Primary

Addresses

Primary practice location

22 Bramhall St
Portland, ME 04102-3175

Mailing address

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 662-2934

Other practice location 1

887 Congress St Ste 400
Portland, ME 04102-3163
Phone (207) 774-6368

Other practice location 2

25 June St
Sanford, ME 04073-2621
Phone (207) 324-4310

Other practice location 3

1 Medical Center Dr
Biddeford, ME 04005-9422
Phone (207) 283-7937

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI, ME2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20210226001734 MI Practitioner - Physician Assistant 1951716810 Reassigns benefits to 1 organization
I20240319002140 ME Practitioner - Physician Assistant 1951716810 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Other, 2020
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
MainehealthGroup PAC ID 7517860588, 2,616 clinicians

Practice addresses (Care Compare)

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 885-9905

Hospital & facility affiliations

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
Physician Assistant

State licenses

LicenseStateTypeSpecialty
PA2594MEMDSurgical Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
Aspirus Ironwood Hospital & Clinics Inc. CurrentSince Mar 1, 2021 Accepting new patients
Mainehealth CurrentSince Mar 25, 2024 Accepting new patients
Aspirus Ironwood Hospital & Clinics, Inc. CurrentSince Mar 1, 2021 Accepting new patients
Mainehealth CurrentSince Mar 25, 2024 Accepting new patients
Mainehealth Past Accepting new patients

Locations

29980 Network Pl
Chicago, IL 60673

1 Medical Dr
Biddeford, ME 04005
Phone (207) 283-7000

887 Congress St
Ste 400
Portland, ME 04102
Phone (207) 774-6368

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

22 Bramhall St
#C
Portland, ME 04102

887 Congress St
Portland, ME 04102
Phone (207) 662-5522

25 June St
Sanford, ME 04073
Phone (207) 324-4310

1400 W Ice Lake Rd
Iron River, MI 49935
Phone (906) 265-6121

N10561 Grandview Ln
Ironwood, MI 49938
Phone (906) 932-1500

N10565 Grandview Ln
Ironwood, MI 49938
Phone (906) 932-1500

601 S 7th St
Ontonagon, MI 49953
Phone (906) 884-8000

Interoperability endpoints

  • Direct secure messaging: wdowling701911@direct.mmc.mainehealth.org

Organizations & group practices 7

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": "1608508800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1766361600000",
    "number": "1386231645",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-2934",
            "fax_number": "207-662-6389"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023175",
            "telephone_number": "207-662-2934"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "887 Congress St Ste 400",
            "address_purpose": "LOCATION",
            "city": "Portland",
            "state": "ME",
            "postal_code": "041023163",
            "country_code": "US",
            "telephone_number": "207-774-6368",
            "fax_number": "207-774-9388",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "25 June St",
            "address_purpose": "LOCATION",
            "city": "Sanford",
            "state": "ME",
            "postal_code": "040732621",
            "country_code": "US",
            "telephone_number": "207-324-4310",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Biddeford",
            "state": "ME",
            "postal_code": "040059422",
            "country_code": "US",
            "telephone_number": "207-283-7937",
            "fax_number": "207-283-7018",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DOWLING",
        "first_name": "WALTER",
        "middle_name": "HAROLD",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-12-21",
        "last_updated": "2025-12-22",
        "certification_date": "2025-12-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "ME",
            "license": "PA2594",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "ME",
            "license": "PA2594",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, ME

Sources for this page

Verify at the official NPI Registry.