Constantine Katsaros, M.D.

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

35033898K Issued in OH

Practice address

705 N 4TH St
Steubenville, OH 43952-1813

Phone

(740) 282-2852

Fax

(740) 282-4740

NPI assigned

Jul 5, 2005

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

Not listed in the public Medicare enrollment file

Eligible to order & refer

• Part B services: No
• Medical equipment: Yes
• Home health: No
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

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.

• Riverside Medical Inc

  dba Riverside Medical of Ohio

  • Internal Medicine Physician
  • Steubenville, OH
  • NPI 1811918089
  NPD (past)
• Riverside Medical Inc.

  • Clinical Medical Laboratory
  • Steubenville, OH
  • NPI 1427216191
  NPD (past)

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

{
    "created_epoch": "1120521600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1487651568",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "401 MARKET ST",
            "address_2": "STE 1000",
            "city": "STEUBENVILLE",
            "state": "OH",
            "postal_code": "439522893",
            "telephone_number": "740-284-1775",
            "fax_number": "740-284-1754"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "705 N 4TH ST",
            "city": "STEUBENVILLE",
            "state": "OH",
            "postal_code": "439521813",
            "telephone_number": "740-282-2852",
            "fax_number": "740-282-4740"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KATSAROS",
        "first_name": "CONSTANTINE",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-05",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OH",
            "license": "35033898K",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "O212531",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Nicole Jurina, MSW
• Sara Kaczmarek, CRNA
• Mary Frances Kakascik
• Abdullah M Kalla, MD
• Elizabeth Rene Kamilar, MD, PHD
• Janise Charmaine Kaufman-Young, LPCC
• Dejuan R Kaufman
• Beverly Kaufmann, CRNA
• Anita Keenan, C.O.T.A.
• Emma Keene

• Internal Medicine Physician in Steubenville, OH
• Providers in Steubenville, OH by specialty
• Internal Medicine 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.