Martin Reid Linker, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

D0039858 Issued in MD

Practice address

711 Maiden Choice LN
Catonsville, MD 21228-3632

Phone

(410) 247-5602

Fax

(410) 242-1756

NPI assigned

Dec 4, 2006

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 MD, TX2 enrollments

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 2

Specialty

Internal Medicine

Education

Albany Medical College of Union University, 1983

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Erickson Health Medical Group of Maryland, PCGroup PAC ID 2860304136, 38 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Erickson Health Medical Group of Maryland PC

  • Internal Medicine Physician
  • Catonsville, MD
  • NPI 1598816449
  Medicare reassignment Care Compare group
• Northwest Hospital Center, Inc

  dba NW Breast Care Ctr,Hospitalist,PA, SHS Plastics,Surgical House Staff

  • Hospitalist Physician
  • Randallstown, MD
  • NPI 1508961988
  Medicare reassignment
• Erickson Health Medical Group of Maryland PC

  • Internal Medicine Physician
  • Baltimore, MD
  • NPI 1093735474
  NPD

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

{
    "created_epoch": "1165190400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785283200000",
    "number": "1063570182",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5730 EXECUTIVE DR STE 230",
            "city": "CATONSVILLE",
            "state": "MD",
            "postal_code": "212281762",
            "telephone_number": "410-247-5602",
            "fax_number": "210-242-1756"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "711 MAIDEN CHOICE LN",
            "city": "CATONSVILLE",
            "state": "MD",
            "postal_code": "212283632",
            "telephone_number": "410-247-5602",
            "fax_number": "410-242-1756"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "22 W Padonia Rd Ste C241",
            "address_purpose": "LOCATION",
            "city": "Timonium",
            "state": "MD",
            "postal_code": "210932237",
            "country_code": "US",
            "telephone_number": "443-433-2536",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3110 Gracefield Rd",
            "address_purpose": "LOCATION",
            "city": "Silver Spring",
            "state": "MD",
            "postal_code": "209041820",
            "country_code": "US",
            "telephone_number": "301-572-8340",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "8800 Walther Blvd",
            "address_purpose": "LOCATION",
            "city": "Parkville",
            "state": "MD",
            "postal_code": "212349001",
            "country_code": "US",
            "telephone_number": "410-882-3240",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "7051 Rockledge Dr",
            "address_purpose": "LOCATION",
            "city": "Bethesda",
            "state": "MD",
            "postal_code": "208171680",
            "country_code": "US",
            "telephone_number": "301-272-9830",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LINKER",
        "first_name": "MARTIN",
        "middle_name": "REID",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-04",
        "last_updated": "2026-07-29",
        "certification_date": "2026-07-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MD",
            "license": "D0039858",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Lionheart Therapy LLC
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• Living Waters Ventures, Inc (Living Waters Residential Services)
• Rachel Lohrmann
• Jack Martin Long, PH.D.

• Internal Medicine Physician in Catonsville, MD
• Providers in Catonsville, MD by specialty
• Internal Medicine Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 29, 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.