John Specht Maddox, MD

Primary specialty

Trauma Surgery PhysicianTaxonomy code 2086S0127X

License

D0089752 Issued in MD

Practice address

Walter Reed National Military Ctr
8901 Wisconsin Ave
Bethesda, MD 20889-0001

Phone

(301) 400-2201

NPI assigned

Dec 20, 2006

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in MD, 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

General Surgery

Education

Uniformed Services Uhs Fe Hebert School of Med, 2006

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Medical Practices of Antietam, LLCGroup PAC ID 2567353865, 229 clinicians

Meritus Medical Center IncGroup PAC ID 7113811795, 730 clinicians

Shock Trauma Associates PAGroup PAC ID 6800882317, 258 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Meritus Medical Center Hospital, Hagerstown, MD, CCN 210001

Merit-based Incentive Payment System (MIPS)

Final score

100 of 100Reported as group

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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 and National Provider Directory roles.

• Medical Practices of Antietam LLC

  • Clinic/Center
  • Hagerstown, MD
  • NPI 1710854963
  Medicare reassignment Care Compare group NPD
• Meritus Medical Center Inc

  dba Meritus Palliative Care

  • Nurse Practitioner
  • Hagerstown, MD
  • NPI 1205176393
  Medicare reassignment Care Compare group NPD
• Shock Trauma Associates, P.a.

  dba Shock Trauma Associates

  • Emergency Care Clinic/Center
  • Baltimore, MD
  • NPI 1679512909
  Medicare reassignment Care Compare group NPD
• Dimensions Healthcare Associates, Inc.

  dba PGHC Anesthesia Associates

  • Anesthesiology Physician
  • Largo, MD
  • NPI 1346354834

  DC

  Medicare reassignment NPD
• Dimensions Health Associates Dba University of Maryland Capital Region

  dba University of Maryland Capital Region Health Medical Group

  • Internal Medicine Physician
  • Oxon Hill, MD
  • NPI 1407486293
  NPD
• Dimensions Healthcare Associates Inc

  dba University of Maryland Capital Region Health Medical Group

  • Critical Care Medicine (Internal Medicine) Physician
  • Laurel, MD
  • NPI 1386706562
  NPD
• Medical Practices of Antietam, LLC

  • General Practice Physician
  • Hagerstown, MD
  • NPI 1558430843
  NPD
• Meritus Medical Center Inc

  dba Meritus Radiology

  • Diagnostic Radiology Physician
  • Hagerstown, MD
  • NPI 1184477911
  NPD
• Dimensions Healthcare Associates Inc

  dba University of Maryland Capital Region Health Medical Group

  • Obstetrics & Gynecology Physician
  • Laurel, MD
  • NPI 1407916646
  NPD (past)

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

• Meritus Medical Center Inc

  • General Acute Care Hospital
  • Hagerstown, MD
  • NPI 1942281266
  Care Compare affiliation

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

{
    "created_epoch": "1166572800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1748563200000",
    "number": "1528122256",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3823 RODMAN ST NW APT E23",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "200162816",
            "telephone_number": "240-506-6532"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "WALTER REED NATIONAL MILITARY CTR",
            "address_2": "8901 WISCONSIN AVE",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208890001",
            "telephone_number": "301-400-2201"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "11116 Medical Campus Rd",
            "address_purpose": "LOCATION",
            "city": "Hagerstown",
            "state": "MD",
            "postal_code": "217426710",
            "country_code": "US",
            "telephone_number": "301-790-8000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "MADDOX",
        "first_name": "JOHN",
        "middle_name": "SPECHT",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-12-20",
        "last_updated": "2025-05-30",
        "certification_date": "2025-05-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "MD",
            "license": "D0089752",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "2086S0127X",
            "taxonomy_group": "",
            "desc": "Surgery, Trauma Surgery",
            "state": "MD",
            "license": "D0089752",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Alicia Macmichael
• Cynthia Toyomi Izuno Macri, M.D.
• Ryan Kelly Macvicar, MD
• Stephen F. Madaras, DO
• Catherine Clare Madden
• Emeline Michelle Maddux
• Kristan Elizabeth Madison, M.D.
• Alicia Madore, CNS
• Dawn Graham Madsen, M.S., CCC-SLP
• Maia Lynn Magder, M.S. CCC-SLP

• Trauma Surgery Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Trauma Surgery Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 30, 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.