Adam Klein, DO

Primary specialty

Infectious Disease PhysicianTaxonomy code 207RI0200X

License

H0097291 Issued in MD

Practice address

8600 Old Georgetown Rd
Bethesda, MD 20814-1422

Phone

(301) 896-7500

NPI assigned

May 4, 2016

Last updated

Oct 3, 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

Electronic endpoints 2

Medicare fee-for-service enrollment

Enrolled in DC, MD2 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

Infectious Disease

Education

Other, 2016

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Medstar Medical Group II LLCGroup PAC ID 0547413825, 3,726 clinicians

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

Practice addresses (Care Compare)

Hospital & facility affiliations

• Medstar Washington Hospital Center Hospital, Washington, DC, CCN 090011
• Sibley Memorial Hospital Hospital, Washington, DC, CCN 090005
• Suburban Hospital Hospital, Bethesda, MD, CCN 210022

Merit-based Incentive Payment System (MIPS)

Final score

94.27 of 100Reported as group

Quality

80.29

Promoting interoperability

100

Improvement activities

40

Cost

75.48

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: aklein193187@directvirtua.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 NPD
• Medstar Medical Group II LLC

  • General Practice Physician
  • Baltimore, MD
  • NPI 1184046187

  DC

  Medicare reassignment Care Compare group NPD
• WHC Physician Group LLC

  • General Practice Physician
  • Washington, DC
  • NPI 1700154226

  MD

  Medicare reassignment NPD
• Johns Hopkins Community Physicians

  dba JHCP- 6225 Smith Avenue; Mental Health Therapy

  • Clinical Social Worker
  • Baltimore, MD
  • NPI 1356161806

  Internal Medicine

  NPD
• Johns Hopkins Community Physicians, Inc

  • Physical Medicine & Rehabilitation Physician
  • Nottingham, MD
  • NPI 1194546192
  NPD
• Johns Hopkins Community Physicians, Inc

  • Internal Medicine Physician
  • Baltimore, MD
  • NPI 1255359972
  NPD
• Medstar Medical Group II LLC

  • Internal Medicine Physician
  • Washington, DC
  • NPI 1376887844
  NPD
• Medstar Medical Group II LLC

  • Anatomic Pathology Physician
  • Washington, DC
  • NPI 1578297503
  NPD
• WHC Emerg Phys

  • Emergency Medical Services (Emergency Medicine) Physician
  • Washington, DC
  • NPI 1306260625
  NPD
• Virtua Medical Group, PA

  • Family Medicine Physician
  • Marlton, NJ
  • NPI 1649226515

  Internal Medicine

  NPD (past)

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
• Lucy Webb Hayes National Training School for Deaconesses & Missionarie

  dba Sibley Memorial Hospital

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1366492977
  Care Compare affiliation
• Washington Hospital Center Corporation

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1548378235
  Care Compare affiliation

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

{
    "created_epoch": "1462320000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1759449600000",
    "number": "1245686641",
    "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",
            "fax_number": "410-500-4266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8600 OLD GEORGETOWN RD",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208141422",
            "telephone_number": "301-896-7500"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1001 Briggs Rd Ste 250",
            "address_purpose": "LOCATION",
            "city": "Mount Laurel",
            "state": "NJ",
            "postal_code": "080544111",
            "country_code": "US",
            "telephone_number": "856-866-7466",
            "fax_number": "856-866-9088",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "5215 Loughboro Rd NW",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200162618",
            "country_code": "US",
            "telephone_number": "202-660-5182",
            "fax_number": "202-660-7081",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "200 Bowman Dr Ste E335",
            "address_purpose": "LOCATION",
            "city": "Voorhees",
            "state": "NJ",
            "postal_code": "080439640",
            "country_code": "US",
            "telephone_number": "856-247-7545",
            "fax_number": "856-866-9088",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "KLEIN",
        "first_name": "ADAM",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-05-04",
        "last_updated": "2025-10-03",
        "certification_date": "2025-10-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TX",
            "license": "BP10056889",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "DC",
            "license": "DO034818",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "NJ",
            "license": "25MB11105300",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "MD",
            "license": "H0097291",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aklein193187@directvirtua.org",
            "affiliation": "N",
            "address_1": "200 Bowman Dr Ste E335",
            "city": "Voorhees",
            "state": "NJ",
            "country_code": "US",
            "postal_code": "080439640",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "aklein193187@directvirtua.org",
            "affiliation": "N",
            "address_1": "1001 Briggs Rd Ste 250",
            "city": "Mount Laurel",
            "state": "NJ",
            "country_code": "US",
            "postal_code": "080544111",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Jeremy M Klass, LMSW
• Debra Kanter Klaus, LCSW-C
• Hanna Klaus, M.D.
• Christopher Austin Klebanoff, M.D.
• James Herman Kleiger, PSY.D.
• Ezra Klein, DO
• David Erwin Kleiner Jr., M.D., PH.D.
• Fredric Barry Kleiner, PH.D.
• Deena A Kleinerman, M.D.
• Julie Klepper, M.D.

• Infectious Disease Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Infectious Disease Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 3, 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.