NPIMap

Individual provider Active NPI

Andreas P. Thyssen, M.D.

  • Internal Medicine Physician
  • Brunswick, ME
National Provider Identifier
1215373279
Registry record updated Aug 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Internal Medicine PhysicianTaxonomy code 207R00000X
License
MD21627 Issued in ME
Practice address
8 Mason St
Brunswick, ME 04011-1514
Phone
(207) 619-2314
Fax
(207) 420-2314
NPI assigned
May 17, 2013
Last updated
Aug 28, 2025By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Aug 28, 2025

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Student in an Organized Health Care Education/Training Program 390200000X
Internal Medicine Physician 207R00000X MD21627 ME Primary
Pediatrics Physician 208000000X MD21627 ME

Addresses

Primary practice location

8 Mason St
Brunswick, ME 04011-1514

Mailing address

8 Mason St
Brunswick, ME 04011-1514
Phone (207) 619-2314

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
I20170829000592 ME Practitioner - Internal Medicine 7113169376 Reassigns benefits to 6 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
University of Colorado School of Medicine, Denver, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
MainehealthGroup PAC ID 7517860588, 2,616 clinicians
Select Physical Therapy Holdings IncGroup PAC ID 9537076401, shared by 76 NPIs, 1,992 clinicians
Maine Street Medical PLLCGroup PAC ID 3375917321, 2 clinicians

Practice addresses (Care Compare)

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 706-3280

730 Ctr St
Suite 9
Auburn, ME 04210-6316
Phone (207) 783-3450

8 Mason St
Brunswick, ME 04011-1514
Phone (207) 619-2314

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
MD21627MEMDInternal Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mainehealth CurrentSince Aug 1, 2017 Accepting new patients
Maine Medical Partners Current Accepting new patients
Mainehealth CurrentSince Aug 1, 2017 Accepting new patients
Maine Medical Partners CurrentSince Aug 1, 2017 Accepting new patients
Maine Medical Partners CurrentSince Apr 1, 2021 Accepting new patients
Maine Street Medical PLLC Internal Medicine CurrentSince Jan 4, 2023 Accepting new patients
Maine Medical Partners Internal Medicine CurrentSince Aug 1, 2018 Accepting new patients
Mainehealth CurrentSince Aug 1, 2017 Accepting new patients
Mainehealth Current Accepting new patients
Mainehealth Pediatrics CurrentSince Aug 1, 2017 Accepting new patients
Maine Medical Partners Internal Medicine CurrentSince Aug 1, 2017 Accepting new patients

Locations

8 Mason St
Brunswick, ME 04011
Phone (207) 578-6608

181 Main St
Norway, ME 04268
Phone (207) 743-5933

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

22 Bramhall St
Rm 2227
Portland, ME 04102
Phone (207) 662-4618

100 Campus Dr
Unit 107
Scarborough, ME 04074
Phone (207) 396-7565

96 Campus Dr
Ste 2B
Scarborough, ME 04074
Phone (207) 883-3491

1 Harnois Ave
Ste 2
Westbrook, ME 04092
Phone (207) 661-3400

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

Interoperability endpoints

  • Direct secure messaging: andreas.thyssen.1@27919.direct.athenahealth.com
  • Direct secure messaging: athyssen76960@direct.mmc.mainehealth.org

Organizations & group practices 11

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

Hospital & facility affiliations 37

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

View all 37

NPI Registry JSON

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

{
    "created_epoch": "1368748800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756339200000",
    "number": "1215373279",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8 MASON ST",
            "city": "BRUNSWICK",
            "state": "ME",
            "postal_code": "040111514",
            "telephone_number": "207-619-2314"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8 MASON ST",
            "city": "BRUNSWICK",
            "state": "ME",
            "postal_code": "040111514",
            "telephone_number": "207-619-2314",
            "fax_number": "207-420-2314"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "THYSSEN",
        "first_name": "ANDREAS",
        "middle_name": "P.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-05-17",
        "last_updated": "2025-08-28",
        "certification_date": "2025-08-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "ME",
            "license": "MD21627",
            "primary": true
        },
        {
            "code": "208000000X",
            "taxonomy_group": "",
            "desc": "Pediatrics",
            "state": "ME",
            "license": "MD21627",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Brunswick, ME

Sources for this page

Verify at the official NPI Registry.