Ren M Ariizumi, MD

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

72402-20 Issued in WI

Practice address

8901 Wisconsin Ave
Bethesda, MD 20889-0004

Phone

(301) 295-0537

NPI assigned

Feb 21, 2018

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in DC, VA, WV, WI, OH5 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 5

Specialty

Anesthesiology

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

MCHS Hospitals IncGroup PAC ID 5698071173, shared by 28 NPIs, 1,195 clinicians

Cleveland ClinicGroup PAC ID 1850203555, 6,954 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Marshfield Medical Center - Minocqua Hospital, Minocqua, WI, CCN 520212
• Hillcrest Hospital Hospital, Mayfield Heights, OH, CCN 360230
• Cleveland Clinic Hospital, Cleveland, OH, CCN 360180

Merit-based Incentive Payment System (MIPS)

Final score

95.34 of 100Reported as apm

Quality

79.86

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: rariizumi998729@soc.inova.org

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.

• The Cleveland Clinic Foundation

  • General Acute Care Hospital
  • Cleveland, OH
  • NPI 1679525919
  Medicare reassignment Care Compare group NPD
• Kaiser Foundation Health Plan of the Mid Atlantic States, Inc

  • Health Maintenance Organization
  • Annapolis, MD
  • NPI 1952461816

  DC

  Medicare reassignment NPD
• Beaver Dam Community Hospitals Inc

  • Clinic/Center
  • Beaver Dam, WI
  • NPI 1972188555
  Medicare reassignment NPD
• Dominion Anesthesia, PLLC

  • Anesthesiology Physician
  • Arlington, VA
  • NPI 1073554952

  DC

  Medicare reassignment NPD
• Flambeau Hospital Inc

  • Clinic/Center
  • Park Falls, WI
  • NPI 1194317966
  Medicare reassignment NPD
• Flambeau Hospital Inc

  • Critical Access Hospital
  • Park Falls, WI
  • NPI 1700963048
  Medicare reassignment NPD
• Inova Cares - Community

  • Anesthesiology Physician
  • Fairfax, VA
  • NPI 1861131906

  DC

  Medicare reassignment NPD
• Kaiser Foundation Health Plan of the Mid Atlantic States, Inc

  • Ambulatory Surgical Clinic/Center
  • Woodbridge, VA
  • NPI 1114677572
  Medicare reassignment NPD
• Kaiser Foundation Health Plan of the Mid Atlantic States, Inc

  • Health Maintenance Organization
  • Lansdowne, VA
  • NPI 1861552721
  Medicare reassignment NPD
• Lakeview Medical Center Inc of Rice Lake

  • Clinic/Center
  • Rice Lake, WI
  • NPI 1093201832
  Medicare reassignment NPD
• Marshfield Clinic Inc

  • Clinic/Center
  • Marshfield, WI
  • NPI 1952347981
  Medicare reassignment NPD
• MCHS Hospitals Inc

  • Clinic/Center
  • Marshfield, WI
  • NPI 1093221434

  Anesthesiology

  Medicare reassignment NPD

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

• Cleveland Clinic Health System - East Region

  • General Acute Care Hospital
  • Mayfield HTS, OH
  • NPI 1902858152
  Care Compare affiliation
• MCHS Hospitals Inc

  • Rural Acute Care Hospital
  • Minocqua, WI
  • NPI 1376197665
  Care Compare affiliation
• The Cleveland Clinic Foundation

  • General Acute Care Hospital
  • Cleveland, OH
  • NPI 1679525919
  Care Compare affiliation

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

{
    "created_epoch": "1519171200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786406400000",
    "number": "1255832762",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "8901 WISCONSIN AVE",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208890004"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8901 WISCONSIN AVE",
            "city": "BETHESDA",
            "state": "MD",
            "postal_code": "208890004",
            "telephone_number": "301-295-0537"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "9300 DeWitt Loop",
            "address_purpose": "LOCATION",
            "city": "Fort Belvoir",
            "state": "VA",
            "postal_code": "220605285",
            "country_code": "US",
            "telephone_number": "571-231-3224",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "9576 Hwy 70",
            "address_purpose": "LOCATION",
            "city": "Minocqua",
            "state": "WI",
            "postal_code": "545489067",
            "country_code": "US",
            "telephone_number": "715-358-1000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ARIIZUMI",
        "first_name": "REN",
        "middle_name": "M",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-02-21",
        "last_updated": "2026-08-11",
        "certification_date": "2026-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "VA",
            "license": "0101275609",
            "primary": false
        },
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "WI",
            "license": "72402-20",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jordan Arbuckle
• William Brennan Arden, DDS, PHD, DMSC, MPH
• Catalina Andrea Argandona Lopez
• Christina M Argiolas, LCSW, LMHP
• Andrea Arias Morataya
• Gabriel Reynaldo Arismendi, MD
• Philip Martin Arlen, M.D.
• Armin Karl Moshyedi MD
• Aaron Armstrong
• Adam Wilson Armstrong, DO

• Anesthesiology Physician in Bethesda, MD
• Providers in Bethesda, MD by specialty
• Anesthesiology Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 11, 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.