Jonathan Taylor Grammer, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

MD25342 Issued in ME

Practice address

123 Medical Center Dr
Brunswick, ME 04011-2652

Phone

(207) 373-6000

Fax

(207) 373-6080

NPI assigned

Mar 18, 2019

Sex

Male

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in ME

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Emergency Medicine

Education

University of South Alabama College of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mount Desert Island Hospital 61 clinicians

Emergency Medicine Services of Maine LLC 56 clinicians

City of Caribou 36 clinicians

Bluewater Emergency Partners of Brunswick, LLC 151 clinicians

St Joseph Hospital 197 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houlton Regional Hospital Hospital, Houlton, ME, CCN 201308
• Central Maine Medical Center Hospital, Lewiston, ME, CCN 200024
• Rumford Hospital Hospital, Rumford, ME, CCN 201306
• Mount Desert Island Hospital Hospital, Bar Harbor, ME, CCN 201304
• Northern Light Maine Coast Hospital Hospital, Ellsworth, ME, CCN 200050

Merit-based Incentive Payment System (MIPS)

Final score

96.58 of 100Reported as apm

Quality

83.17

Promoting interoperability

100

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

89.98 of 100Reported as group

Quality

74.88

Promoting interoperability

96

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

96.58 of 100Reported as apm

Quality

83.17

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: jgrammer2594911@direct.bsmhealth.org
• FHIR API: https://fhir-myrecord.cerner.com/r4/b5eba017-85d4-4b6c-a2f0-9b2c7b0c38dd/

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.

• Bluewater Emergency Partners of Brunswick, LLC

  • Emergency Medicine Physician
  • Brunswick, ME
  • NPI 1043640204

  Emergency Medicine, ME

  Medicare reassignment Care Compare group NPD
• City of Caribou

  • General Acute Care Hospital
  • Caribou, ME
  • NPI 1780615492

  ME

  Medicare reassignment Care Compare group NPD
• Emergency Medicine Services of Maine, LLC

  • Emergency Medicine Physician
  • Ellsworth, ME
  • NPI 1578032058

  Emergency Medicine, ME

  Medicare reassignment Care Compare group NPD
• Mount Desert Island Hospital

  • Critical Access Hospital
  • Bar Harbor, ME
  • NPI 1790764512

  ME

  Medicare reassignment Care Compare group NPD
• St. Joseph Hospital

  • General Acute Care Hospital
  • Bangor, ME
  • NPI 1154321545

  ME

  Medicare reassignment Care Compare group NPD
• Houlton Regional Hospital

  • Critical Access Hospital
  • Houlton, ME
  • NPI 1508823741

  ME

  Medicare reassignment NPD (past)
• Mount Desert Island Hospital

  • Dental Clinic/Center
  • Southwest Harbor, ME
  • NPI 1235553413
  NPD
• Bluewater Emergency Partners of Calais, LLC Dba: Bluewater Urgent Care

  • Emergency Medicine Physician
  • Brunswick, ME
  • NPI 1881974665

  Emergency Medicine

  NPD (past)
• Houlton Regional Hospital

  • Critical Access Hospital
  • Houlton, ME
  • NPI 1386804268
  NPD (past)

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

• Central Maine Medical Center

  • General Acute Care Hospital
  • Lewiston, ME
  • NPI 1689653487

  Hospital

  Care Compare affiliation
• Houlton Regional Hospital

  • Critical Access Hospital
  • Houlton, ME
  • NPI 1508823741

  Hospital

  Care Compare affiliation
• Maine Coast Regional Health Facilities

  • General Acute Care Hospital
  • Ellsworth, ME
  • NPI 1740249739

  Hospital

  Care Compare affiliation
• Mount Desert Island Hospital

  • Dental Clinic/Center
  • Southwest Harbor, ME
  • NPI 1235553413

  Hospital

  Care Compare affiliation
• Mount Desert Island Hospital

  • Critical Access Hospital
  • Bar Harbor, ME
  • NPI 1790764512

  Hospital

  Care Compare affiliation
• Rumford Hospital

  • Critical Access Hospital
  • Rumford, ME
  • NPI 1205991122

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1552867200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775433600000",
    "number": "1003375189",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "123 MEDICAL CENTER DR",
            "city": "BRUNSWICK",
            "state": "ME",
            "postal_code": "040112652",
            "telephone_number": "207-373-6000",
            "fax_number": "207-373-6080"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "123 MEDICAL CENTER DR",
            "city": "BRUNSWICK",
            "state": "ME",
            "postal_code": "040112652",
            "telephone_number": "207-373-6000",
            "fax_number": "207-373-6080"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1 Medical Center Dr",
            "address_purpose": "LOCATION",
            "city": "Morgantown",
            "state": "WV",
            "postal_code": "265061200",
            "country_code": "US",
            "telephone_number": "304-293-2436",
            "fax_number": "304-293-6702",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "50 Union St",
            "address_purpose": "LOCATION",
            "city": "Ellsworth",
            "state": "ME",
            "postal_code": "046051534",
            "country_code": "US",
            "telephone_number": "207-664-5311",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "22 Station Ave Ste 102",
            "address_purpose": "LOCATION",
            "city": "Brunswick",
            "state": "ME",
            "postal_code": "040112092",
            "country_code": "US",
            "telephone_number": "207-406-7500",
            "fax_number": "207-618-5674",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GRAMMER",
        "first_name": "JONATHAN",
        "middle_name": "TAYLOR",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2019-03-18",
        "last_updated": "2026-04-06",
        "certification_date": "2026-04-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "ME",
            "license": "MD25342",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• All providers in Brunswick, ME
• Emergency Medicine Physician in Maine

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 6, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.