Geo Chacko MD PC

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

23682 Issued in OK

Legal business name

GEO CHACKO MD PC

Practice address

8950 E Waterloo Rd
Arcadia, OK 73007-9513

Phone

(405) 936-0504

Fax

(405) 925-2195

NPI assigned

Sep 28, 2007

Last updated

Mar 19, 2026By the provider in NPPES

Organization subpart

No

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

Authorized official

Name

Dr. Geo Chacko, MD

Title

Physician

Phone

(918) 329-9153

Specialties & licenses 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in OK

Enrollment records 1

Practitioners 2

Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.

• Geo Philips Chacko, MD

  • Internal Medicine Physician
  • Norman, OK
  • NPI 1700842440
  Medicare reassignment NPD
• Nzube C Okonkwo, M.D

  • Geriatric Medicine (Family Medicine) Physician
  • Houston, TX
  • NPI 1154708022
  NPD (past)

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

{
    "created_epoch": "1190937600000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1773878400000",
    "number": "1982891362",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 6023",
            "city": "NORMAN",
            "state": "OK",
            "postal_code": "730706023",
            "telephone_number": "405-936-0504"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "8950 E WATERLOO RD",
            "city": "ARCADIA",
            "state": "OK",
            "postal_code": "730079513",
            "telephone_number": "405-936-0504",
            "fax_number": "405-925-2195"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "GEO CHACKO MD PC",
        "organizational_subpart": "NO",
        "enumeration_date": "2007-09-28",
        "last_updated": "2026-03-19",
        "certification_date": "2026-03-19",
        "status": "A",
        "authorized_official_last_name": "CHACKO",
        "authorized_official_first_name": "GEO",
        "authorized_official_title_or_position": "PHYSICIAN",
        "authorized_official_telephone_number": "918-329-9153",
        "authorized_official_name_prefix": "Dr.",
        "authorized_official_credential": "MD"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "OK",
            "license": "23682",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200021120B",
            "state": "OK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Brady Allen Bristow, MS, RD
• Anabelen Chairez
• Chance Airhart Aprn-Crna PLLC
• Beverly Diane Coon, LCSW
• Christian Dane Fleming
• Hands on Demand Doula, LLC
• Integrative Health and Wellness
• Hallie F Kasiri, MA, BCABA
• Barbara Vibrans Langthorn, PHYSICIAN ASSISTANT
• Amy Dawn Maley, APRN-CNP

• Internal Medicine Physician in Arcadia, OK
• Providers in Arcadia, OK by specialty
• Internal Medicine Physician in Oklahoma

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 19, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.