NPIMap

Organization Active NPI

Emergency Medicine Services of Maine, LLC

  • Emergency Medicine Physician
  • Ellsworth, ME
National Provider Identifier
1578032058
Registry record updated Jul 2, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Emergency Medicine PhysicianTaxonomy code 207P00000X
Legal business name
EMERGENCY MEDICINE SERVICES OF MAINE, LLC
Practice address
50 Union St
Ellsworth, ME 04605-1534
Phone
(207) 664-5311
NPI assigned
Nov 14, 2018
Last updated
Jul 2, 2025By the provider in NPPES
Organization subpart
No

NPPES NPI Registry

Updated by the provider on Jul 2, 2025

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

Authorized official

Name
David J Istvan, MD
Title
President
Phone
(856) 686-4306

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Emergency Medicine PhysicianGroup: 193200000X MULTI-SPECIALTY GROUP 207P00000X Primary
Physician AssistantGroup: 193200000X MULTI-SPECIALTY GROUP 363A00000X
Nurse PractitionerGroup: 193200000X MULTI-SPECIALTY GROUP 363L00000X

Addresses

Primary practice location

50 Union St
Ellsworth, ME 04605-1534

Mailing address

307 S Evergreen Ave
Woodbury, NJ 08096-2739
Phone (856) 686-4316

Other practice location 1

200 Kennedy Memorial Dr
Waterville, ME 04901-4526
Phone (207) 381-3000

Other practice location 2

897 W Main St
Dover Foxcroft, ME 04426-1029
Phone (207) 564-8401

Other practice location 3

200 Kennedy Memorial Dr
Waterville, ME 04901-4526
Phone (207) 631-3000

Other practice location 4

140 Academy St
Presque Isle, ME 04769-3102
Phone (207) 768-4000

Other practice location 5

447 N Main St
Pittsfield, ME 04967-3707
Phone (207) 487-4000

Other practice location 6

57 Water St
Blue Hill, ME 04614-5231
Phone (207) 374-3400

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
O20190118000889 ME Part B Supplier - Clinic/Group Practice 1052657616 Receives reassigned benefits from 191 practitioners
Practice locations: Blue Hill, ME; Dover Foxcroft, ME; Ellsworth, ME; Pittsfield, ME; Presque Isle, ME; Waterville, ME

National Provider Directory

National Provider Directory

Practitioners & affiliated clinicians

Practitioners 194

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

View all 194

NPI Registry JSON

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

{
    "created_epoch": "1542153600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1751414400000",
    "number": "1578032058",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "307 S EVERGREEN AVE",
            "city": "WOODBURY",
            "state": "NJ",
            "postal_code": "080962739",
            "telephone_number": "856-686-4316",
            "fax_number": "865-291-3254"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "50 UNION ST",
            "city": "ELLSWORTH",
            "state": "ME",
            "postal_code": "046051534",
            "telephone_number": "207-664-5311"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "200 Kennedy Memorial Dr",
            "address_purpose": "LOCATION",
            "city": "Waterville",
            "state": "ME",
            "postal_code": "049014526",
            "country_code": "US",
            "telephone_number": "207-381-3000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "897 W Main St",
            "address_purpose": "LOCATION",
            "city": "Dover Foxcroft",
            "state": "ME",
            "postal_code": "044261029",
            "country_code": "US",
            "telephone_number": "207-564-8401",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Kennedy Memorial Dr",
            "address_purpose": "LOCATION",
            "city": "Waterville",
            "state": "ME",
            "postal_code": "049014526",
            "country_code": "US",
            "telephone_number": "207-631-3000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "140 Academy St",
            "address_purpose": "LOCATION",
            "city": "Presque Isle",
            "state": "ME",
            "postal_code": "047693102",
            "country_code": "US",
            "telephone_number": "207-768-4000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "447 N Main St",
            "address_purpose": "LOCATION",
            "city": "Pittsfield",
            "state": "ME",
            "postal_code": "049673707",
            "country_code": "US",
            "telephone_number": "207-487-4000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "57 Water St",
            "address_purpose": "LOCATION",
            "city": "Blue Hill",
            "state": "ME",
            "postal_code": "046145231",
            "country_code": "US",
            "telephone_number": "207-374-3400",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "organization_name": "EMERGENCY MEDICINE SERVICES OF MAINE, LLC",
        "organizational_subpart": "NO",
        "enumeration_date": "2018-11-14",
        "last_updated": "2025-07-02",
        "certification_date": "2025-07-02",
        "status": "A",
        "authorized_official_last_name": "ISTVAN",
        "authorized_official_first_name": "DAVID",
        "authorized_official_middle_name": "J",
        "authorized_official_title_or_position": "PRESIDENT",
        "authorized_official_telephone_number": "856-686-4306",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Emergency Medicine",
            "state": null,
            "license": null,
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Physician Assistant",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
            "desc": "Nurse Practitioner",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Ellsworth, ME

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 2, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.