George Knappenberger, MD

Primary specialty

Geriatric Medicine (Internal Medicine) PhysicianTaxonomy code 207RG0300X

License

35078786 Issued in OH

Practice address

1350 E Market St
Warren, OH 44483-6608

Phone

(330) 841-9822

Fax

(330) 841-9281

NPI assigned

Mar 10, 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

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.

• Pennsylvania Department of Public Welfare

  dba Allentown State Hospital

  • Psychiatric Hospital
  • Allentown, PA
  • NPI 1386626919
  NPD (past)

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

{
    "created_epoch": "1141948800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1326016866",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1350 E MARKET ST",
            "city": "WARREN",
            "state": "OH",
            "postal_code": "444836608",
            "telephone_number": "330-841-9822",
            "fax_number": "330-841-9281"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1350 E MARKET ST",
            "city": "WARREN",
            "state": "OH",
            "postal_code": "444836608",
            "telephone_number": "330-841-9822",
            "fax_number": "330-841-9281"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "KNAPPENBERGER",
        "first_name": "GEORGE",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-10",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0300X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Geriatric Medicine",
            "state": "OH",
            "license": "35078786",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2380392",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Anissa M Klein, LPN
• Erin Klekot, M.D.
• Louise A Kline, MSSA LISW RN
• Tammy A Klinefelter, LPN
• Sue Ellen Knapp, RPH
• Melissa S Knarr, DO
• Tiffany Ann Knepper
• Angela Marie Knight, LPN
• Tawandra Nicole Knight, CDCA
• Tricia Lynn Knight

• Geriatric Medicine (Internal Medicine) Physician in Warren, OH
• Providers in Warren, OH by specialty
• Geriatric Medicine (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.