NPIMap

Individual provider Active NPI

Christopher G Tretter, MD

  • Hematology & Oncology Physician
  • South Portland, ME
National Provider Identifier
1083648133
Registry record updated Nov 15, 2023
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology & Oncology PhysicianTaxonomy code 207RH0003X
License
27471 Issued in ME
Practice address
Mainehealth Cancer Care
265 Western Ave Suite 2
South Portland, ME 04106
Phone
(207) 661-0200
NPI assigned
Jul 11, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Nov 15, 2023

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology & Oncology Physician 207RH0003X 234273 MA
Hematology & Oncology Physician 207RH0003X 27471 ME Primary

Addresses

Primary practice location

Mainehealth Cancer Care
265 Western Ave Suite 2
South Portland, ME 04106

Mailing address

Mainehealth Cancer Care
265 Western Ave Suite 2
South Portland, ME 04106
Phone (207) 661-0200

Other identifiers 2

IdentifierTypeStateIssuer
30200880MedicaidNH
110077681AMedicaidMA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MA, 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
I20071205000128 MA Practitioner - Hematology/OncologyPractitioner - Internal Medicine 9739074048 Reassigns benefits to 1 organization
I20231211001681 ME Practitioner - Medical OncologyPractitioner - Internal Medicine 9739074048 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Medical OncologyAlso: Internal Medicine
Education
McGill University, Faculty of Medicine, 1994
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
MainehealthGroup PAC ID 7517860588, 2,616 clinicians

Practice addresses (Care Compare)

100 Campus Dr
Scarborough, ME 04074-7172

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

265 Western Ave
Suite 2
South Portland, ME 04106-2458
Phone (207) 396-7606

Hospital & facility affiliations

  • Andwell Health Partners Hospice, Scarborough, ME, CCN 201511
  • Mainehealth Maine Medical Center Hospital, Portland, ME, CCN 200009
  • Memorial Hospital, the Hospital, North Conway, NH, CCN 301307
  • Mainehealth Stephens Hospital Hospital, Norway, ME, CCN 201315
  • Beth Israel Deaconess Medical Center Hospital, Boston, MA, CCN 220086

Merit-based Incentive Payment System (MIPS)

Final score
91.98 of 100Reported as apm
Quality
76.59
Promoting interoperability
100
Improvement activities
40

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)
Not enrolled
HHS exclusion list flag
Flagged The directory lists this NPI on an HHS exclusion list. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
234273MAMDHematology & Oncology Physician
27471MEMDHematology & Oncology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mainehealth CurrentSince Dec 18, 2023 Accepting new patients
Maine Medical Partners CurrentSince Dec 18, 2023 Accepting new patients
Mainehealth CurrentSince Dec 18, 2023 Accepting new patients
Maine Medical Partners Hematology & Oncology CurrentSince Dec 18, 2023 Accepting new patients
Mainehealth Current Accepting new patients
Lahey Clinic, Inc CurrentSince Aug 14, 2018 Accepting new patients
Mainehealth Past Accepting new patients

Locations

41 Mall Rd
Burlington, MA 01805
Phone (781) 744-8400

887 Congress St
Ste 210
Portland, ME 04102
Phone (207) 774-2381

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

265 Western Ave
Ste 2
South Portland, ME 04106
Phone (207) 661-0200

6 Tsienneto Rd
Ste 101LL
Londonderry, NH 03038
Phone (603) 537-2060

Interoperability endpoints

  • Direct secure messaging: ctretter642225@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 44

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

View all 44

NPI Registry JSON

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

{
    "created_epoch": "1152576000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1700006400000",
    "number": "1083648133",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "MAINEHEALTH CANCER CARE",
            "address_2": "265 WESTERN AVE SUITE 2",
            "city": "SOUTH PORTLAND",
            "state": "ME",
            "postal_code": "04106",
            "telephone_number": "207-661-0200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "MAINEHEALTH CANCER CARE",
            "address_2": "265 WESTERN AVE SUITE 2",
            "city": "SOUTH PORTLAND",
            "state": "ME",
            "postal_code": "04106",
            "telephone_number": "207-661-0200"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "TRETTER",
        "first_name": "CHRISTOPHER",
        "middle_name": "G",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-07-11",
        "last_updated": "2023-11-15",
        "certification_date": "2023-11-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "MA",
            "license": "234273",
            "primary": false
        },
        {
            "code": "207RH0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology & Oncology",
            "state": "ME",
            "license": "27471",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "30200880",
            "state": "NH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "110077681A",
            "state": "MA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in South Portland, ME

Sources for this page

Verify at the official NPI Registry.