Michael John McMahon, M.D.

Primary specialty

Critical Care Medicine (Internal Medicine) PhysicianTaxonomy code 207RC0200X

License

D0101997 Issued in MD

Practice address

8901 Rockville Pike
Bethesda, MD 20889-5001

Phone

(301) 433-4191

NPI assigned

Jun 21, 2013

Last updated

Jan 7, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in HI, DC2 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

Critical Care (Intensivists)

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Johns Hopkins Community Physicians, IncGroup PAC ID 8325943707, 764 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Suburban Hospital Hospital, Bethesda, MD, CCN 210022

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: mmcmahon480818@direct.hopkinsmedicine.org

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.

• Johns Hopkins Community Physicians, Inc

  • Internal Medicine Physician
  • Baltimore, MD
  • NPI 1578598868

  DC

  Medicare reassignment Care Compare group
• Hawaii Permanente Medical Group Inc

  • Health Maintenance Organization
  • Honolulu, HI
  • NPI 1710945969
  Medicare reassignment NPD
• Johns Hopkins Community Physicians

  dba JHCP- 6225 Smith Avenue; Mental Health Therapy

  • Clinical Social Worker
  • Baltimore, MD
  • NPI 1356161806
  NPD
• Johns Hopkins Community Physicians, Inc

  • Internal Medicine Physician
  • Baltimore, MD
  • NPI 1255359972

  Critical Care Medicine

  NPD

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

• Suburban Hospital, Inc.

  • General Acute Care Hospital
  • Bethesda, MD
  • NPI 1205896446
  Care Compare affiliation
• Suburban Hospital, Inc.

  dba Suburban Hospital Radiation Oncology Infusion Center

  • Radiation Oncology Clinic/Center
  • Bethesda, MD
  • NPI 1528096690

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1371772800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1736208000000",
    "number": "1316386444",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6201 GREENLEIGH AVE",
            "city": "MIDDLE RIVER",
            "state": "MD",
            "postal_code": "212202004",
            "telephone_number": "410-933-0000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8901 ROCKVILLE PIKE",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208895001",
            "telephone_number": "301-433-4191"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "8600 Old Georgetown Rd",
            "address_purpose": "LOCATION",
            "city": "Bethesda",
            "state": "MD",
            "postal_code": "208141422",
            "country_code": "US",
            "telephone_number": "301-896-3990",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MCMAHON",
        "first_name": "MICHAEL",
        "middle_name": "JOHN",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-06-21",
        "last_updated": "2025-01-07",
        "certification_date": "2025-01-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "HI",
            "license": "MD-21028",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "MD",
            "license": "D0101997",
            "primary": false
        },
        {
            "code": "207RP1001X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Pulmonary Disease",
            "state": "HI",
            "license": "MD-21028",
            "primary": false
        },
        {
            "code": "207RC0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Critical Care Medicine",
            "state": "MD",
            "license": "D0101997",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David B McLean, M.D.
• Erin McLean, LPC, LCPC
• Hayley A McLean, DO
• Elizabeth Van Hoven McLeod, MD
• Francis J McMahon, MD
• Mary McMaster, M.D.
• Robert Rowell McMeekin
• Ian McMenamin, MD
• Paulette McMillan, RD, LN, LAC
• Geoffrey L McMurray, GEOFFREY MCMURRAY

• Critical Care Medicine (Internal Medicine) Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Critical Care Medicine (Internal Medicine) Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 7, 2025; 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.