NPIMap

Individual provider Active NPI

Thomas Mellow, M.D.

  • Pediatric Pulmonology Physician
  • South Portland, ME
National Provider Identifier
1003846361
Registry record updated Mar 24, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Pediatric Pulmonology PhysicianTaxonomy code 2080P0214X
License
016021 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 3, 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 2

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatrics Physician 208000000X 016021 ME
Pediatric Pulmonology Physician 2080P0214X 016021 ME Primary

Addresses

Primary practice location

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

Mailing address

301 US Route 1
Scarborough, ME 04074-7609
Phone (207) 396-8600

Other identifiers 2

IdentifierTypeStateIssuer
30203388MedicaidNH
331790099MedicaidME

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
I20050607000256 ME Practitioner - Pulmonary DiseasePractitioner - Pediatric MedicinePractitioner - Sleep Medicine 2163465535 Reassigns benefits to 7 organizations

Care Compare profile

Medicare Care Compare
Specialty
Pulmonary DiseaseAlso: Pediatric Medicine, Sleep Medicine
Education
University of Virginia School of Medicine, 1992
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

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 Medicine

State licenses

LicenseStateTypeSpecialty
016021MEMDPediatrics Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mainegeneral Medical Center CurrentSince Oct 7, 2024 Accepting new patients
Down East Community Hospital CurrentSince Oct 22, 2024 Accepting new patients
Calais Community Hospital CurrentSince Jun 6, 2025 Accepting new patients
Down East Community Hospital CurrentSince Oct 22, 2024 Accepting new patients
Mainegeneral Medical Center Current Accepting new patients
Maine Medical Partners CurrentSince Apr 13, 2011 Accepting new patients
Mainehealth Current Accepting new patients
Maine Medical Partners CurrentSince Apr 13, 2011 Accepting new patients
Mainehealth CurrentSince Jul 3, 2023 Accepting new patients
Mainegeneral Medical Center CurrentSince Oct 7, 2024 Accepting new patients
Maine Medical Partners Pediatrics Current Accepting new patients
Chest Medicine Associates, PA CurrentSince Oct 21, 2024 Accepting new patients
Calais Community Hospital CurrentSince Jun 6, 2025 Accepting new patients
Down East Community Hospital CurrentSince Sep 4, 2025 Accepting new patients
Calais Community Hospital Current Accepting new patients
Mainehealth CurrentSince Jul 3, 2023 Accepting new patients

Locations

35 Medical Center Pkwy
Augusta, ME 04330
Phone (207) 621-3639

24 Hospital Ln
Calais, ME 04619
Phone (207) 454-9213

11 Hospital Dr
Machias, ME 04654
Phone (207) 255-0434

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

887 Congress St
Ste 320
Portland, ME 04102
Phone (207) 662-5522

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

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

149 North St
Waterville, ME 04901
Phone (207) 622-1959

1 Harnois Ave
Ste 1A
Westbrook, ME 04092
Phone (207) 662-1360

584 Roosevelt Trl
Windham, ME 04062
Phone (207) 892-3216

Interoperability endpoints

  • FHIR API: https://fhir-myrecord.cerner.com/r4/6b68bc92-a317-4686-a79a-fbb1b58a509e/
  • Direct secure messaging: thomas.mellow.d1.p1@direct.cma.nextgenshare.com

Organizations & group practices 16

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.

View all 16

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": "1151884800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774310400000",
    "number": "1003846361",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "301 US ROUTE 1",
            "city": "SCARBOROUGH",
            "state": "ME",
            "postal_code": "040747609",
            "telephone_number": "207-396-8600",
            "fax_number": "207-396-8632"
        },
        {
            "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": [],
    "basic": {
        "last_name": "MELLOW",
        "first_name": "THOMAS",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-03",
        "last_updated": "2026-03-24",
        "certification_date": "2026-03-24",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "ME",
            "license": "016021",
            "primary": false
        },
        {
            "code": "2080P0214X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Pulmonology",
            "state": "ME",
            "license": "016021",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "30203388",
            "state": "NH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "331790099",
            "state": "ME"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in South Portland, ME

Sources for this page

Verify at the official NPI Registry.