NPIMap

Individual provider Active NPI

Daniel Joseph Herr, MD

  • Radiation Oncology Physician
  • Portland, ME
National Provider Identifier
1174083208
Registry record updated Apr 21, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Radiation Oncology PhysicianTaxonomy code 2085R0001X
License
MD28085 Issued in ME
Practice address
22 Bramhall St
Portland, ME 04102-3134
Phone
(207) 662-2526
NPI assigned
Mar 24, 2019
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Apr 21, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Radiation Oncology Physician 2085R0001X 32004 NH
Radiation Oncology Physician 2085R0001X MD28085 ME Primary

Addresses

Primary practice location

22 Bramhall St
Portland, ME 04102-3134

Mailing address

324 Gannett Dr Ste 200
South Portland, ME 04106-3266
Phone (207) 482-7800

Other practice location 1

11 Rock Row Ste 320
Westbrook, ME 04092-4877
Phone (207) 303-3300

Other practice location 2

15 Rock Row Ste 110
Westbrook, ME 04092-4877
Phone (207) 303-3300

Other practice location 3

11 Rock Row Ste 150
Westbrook, ME 04092-4877
Phone (207) 303-3300

Other practice location 4

11 Rock Row Ste 120
Westbrook, ME 04092-4877
Phone (207) 303-3300

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME, NH2 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
I20240712002725 ME Practitioner - Radiation Oncology 1052647492 Reassigns benefits to 4 organizations
I20240715001481 NH Practitioner - Radiation Oncology 1052647492 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Radiation Oncology
Education
Medical University of South Carolina College of Medicine, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Spectrum Healthcare Partners PAGroup PAC ID 7618871245, shared by 7 NPIs, 305 clinicians

Practice addresses (Care Compare)

22 Bramhall St
Portland, ME 04102-3134
Phone (207) 871-2571

27 Industrial Ave
Sanford, ME 04073-5845
Phone (207) 459-1600

333 Borthwick Ave
Portsmouth, NH 03801-7128
Phone (603) 559-4188

Hospital & facility affiliations

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Mainehealth CurrentSince Sep 7, 2024 Accepting new patients
Spectrum Healthcare Partners, PA Current Accepting new patients
Spectrum Healthcare Partners, PA Radiation Oncology CurrentSince Jul 29, 2024 Accepting new patients
Maine Center for Cancer Medicine & Blood Disorders, P.a. Radiation Oncology CurrentSince Feb 16, 2026 Accepting new patients
Mainehealth Current Accepting new patients
Spectrum Healthcare Partners, P.a. CurrentSince Jul 29, 2024 Accepting new patients
Mainehealth CurrentSince Sep 7, 2024 Accepting new patients
Maine Center of Cancer Medicine & Blood Disorders PastSince Feb 16, 2026 Accepting new patients
Mainehealth Past Accepting new patients

Locations

175 Congress Ave
Bath, ME 04530
Phone (207) 386-5656

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

27 Industrial Ave
Sanford, ME 04073
Phone (207) 459-1600

100 Campus Dr
Unit 121A
Scarborough, ME 04074

92 Campus Dr
Ste C
Scarborough, ME 04074
Phone (207) 797-5753

324 Gannett Dr
Ste 200
South Portland, ME 04106
Phone (207) 482-7861

11 Rock Row
Ste 320
Westbrook, ME 04092
Phone (207) 303-3300

11 Rock Row
Ste 150
Westbrook, ME 04092
Phone (207) 303-3300

15 Rock Row
Ste 110
Westbrook, ME 04092
Phone (207) 303-3300

11 Rock Row
Ste 120
Westbrook, ME 04092
Phone (207) 303-3000

3073 White Mountain Hwy
North Conway, NH 03860
Phone (603) 356-5472

333 Bothwick Ave
Portsmouth, NH 03801
Phone (603) 433-4907

Interoperability endpoints

  • Direct secure messaging: dherr715084@direct.mmc.mainehealth.org

Organizations & group practices 9

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 45

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

View all 45

NPI Registry JSON

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

{
    "created_epoch": "1553385600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776729600000",
    "number": "1174083208",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "324 GANNETT DR STE 200",
            "city": "SOUTH PORTLAND",
            "state": "ME",
            "postal_code": "041063266",
            "telephone_number": "207-482-7800"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "22 BRAMHALL ST",
            "city": "PORTLAND",
            "state": "ME",
            "postal_code": "041023134",
            "telephone_number": "207-662-2526"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11 Rock Row Ste 320",
            "address_purpose": "LOCATION",
            "city": "Westbrook",
            "state": "ME",
            "postal_code": "040924877",
            "country_code": "US",
            "telephone_number": "207-303-3300",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "15 Rock Row Ste 110",
            "address_purpose": "LOCATION",
            "city": "Westbrook",
            "state": "ME",
            "postal_code": "040924877",
            "country_code": "US",
            "telephone_number": "207-303-3300",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "11 Rock Row Ste 150",
            "address_purpose": "LOCATION",
            "city": "Westbrook",
            "state": "ME",
            "postal_code": "040924877",
            "country_code": "US",
            "telephone_number": "207-303-3300",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "11 Rock Row Ste 120",
            "address_purpose": "LOCATION",
            "city": "Westbrook",
            "state": "ME",
            "postal_code": "040924877",
            "country_code": "US",
            "telephone_number": "207-303-3300",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HERR",
        "first_name": "DANIEL",
        "middle_name": "JOSEPH",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-24",
        "last_updated": "2026-04-21",
        "certification_date": "2026-04-21",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "NH",
            "license": "32004",
            "primary": false
        },
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "ME",
            "license": "MD28085",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Portland, ME

Sources for this page

Verify at the official NPI Registry.