Theodore N Marks, M.D.

Primary specialty

Anesthesiology PhysicianTaxonomy code 207L00000X

License

35076255M Issued in OH

Practice address

9500 Euclid Ave
Cleveland, OH 44195-0001

Phone

(800) 223-2273

NPI assigned

Apr 12, 2006

Last updated

Jul 13, 2026By 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 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in OH

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 1

Specialty

Anesthesiology

Education

Clvlnd Clinic Lerner College of Med of Case WSTN RSV University, 1992

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Cleveland ClinicGroup PAC ID 1850203555, 6,954 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Cleveland Clinic Hospital, Cleveland, OH, CCN 360180

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: tmarks51706@direct.ccf.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.

• The Cleveland Clinic Foundation

  • General Acute Care Hospital
  • Cleveland, OH
  • NPI 1679525919
  Medicare reassignment Care Compare group NPD
• Euclid Hospital Cleveland Clinic Health System

  dba cleveland clinic foundation

  • General Acute Care Hospital
  • Euclid, OH
  • NPI 1457403016
  NPD

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

• 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": "1144800000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1689638363",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6000 W CREEK RD",
            "address_2": "SUITE 10",
            "city": "INDEPENDENCE",
            "state": "OH",
            "postal_code": "441312139",
            "telephone_number": "216-986-1256",
            "fax_number": "216-986-1191"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9500 EUCLID AVE",
            "city": "CLEVELAND",
            "state": "OH",
            "postal_code": "441950001",
            "telephone_number": "800-223-2273"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARKS",
        "first_name": "THEODORE",
        "middle_name": "N",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-12",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207L00000X",
            "taxonomy_group": "",
            "desc": "Anesthesiology",
            "state": "OH",
            "license": "35076255M",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2146127",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Jeffrey M Marks, MD
• Michelle M Marks, D.O.
• Sassy Marks, HHA
• Sophie Marks, LSW
• Sylvester Marks
• Tiffany P Marks
• Tina Marie Marks, AU.D.
• William Doyle Marks, O.D.
• Jennifer Ann Markus, RN, BSN, WTA-C
• Virginia Marie Markus, C.R.N.P.

• Anesthesiology Physician in Cleveland, OH
• Providers in Cleveland, OH by specialty
• Anesthesiology Physician in Ohio

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.