Robert J Gunderson, D.O.

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

License

3030 Issued in OK

Practice address

2116 W Iowa Ave
Chickasha, OK 73018-2736

Phone

(405) 224-2100

Fax

(405) 779-2801

NPI assigned

Nov 21, 2005

Last updated

Feb 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 OK, TX2 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 2

Specialty

Orthopedic Surgery

Education

Oklahoma State University College of Osteopathic Medicine, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Grady Memorial HospitalGroup PAC ID 0648175778, shared by 6 NPIs, 47 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Lifeline Home Health Care, Inc Home health agency, Chickasha, OK, CCN 377524
• Elara Caring IV Home health agency, Chickasha, OK, CCN 377690
• Complete Home Health of Tishomingo LLC Home health agency, Tishomingo, OK, CCN 377704
• Grady Memorial Hospital Hospital, Chickasha, OK, CCN 370054
• The Physicians' Hospital in Anadarko Hospital, Anadarko, OK, CCN 371314

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/996/brand/1/csg/213/fhir/r4

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.

• Grady Memorial Hospital

  dba Anesthesia Services

  • Anesthesiology Physician
  • Chickasha, OK
  • NPI 1750370268
  Medicare reassignment NPD
• Mercy Clinic Oklahoma Communities

  • Family Medicine Physician
  • Oklahoma City, OK
  • NPI 1386874550
  Medicare reassignment NPD
• Acute Care Surgical Affiliates of Texas PA

  • Surgery Physician
  • Corpus Christi, TX
  • NPI 1407322415

  Orthopaedic Surgery

  Medicare reassignment NPD
• C H Wilkinson Physician Network

  dba CHRISTUS Physician Group

  • Family Medicine Physician
  • Irving, TX
  • NPI 1457382947
  Medicare reassignment NPD
• Oklahoma Orthopedics & Sports Medicine

  • Sports Medicine (Orthopaedic Surgery) Physician
  • Shawnee, OK
  • NPI 1558415240
  NPD (past) Authorized official
• Grady Memorial Hospital

  dba Five Oaks Medical Group

  • Clinic/Center
  • Chickasha, OK
  • NPI 1659302115

  Orthopaedic Surgery

  NPD
• Grady Memorial Hospital

  dba Tuttle Family Medical Clinic

  • Rural Health Clinic/Center
  • Tuttle, OK
  • NPI 1750715439
  NPD
• C H Wilkinson Physician Network

  dba CHRISTUS Physician Group

  • Orthopaedic Surgery Physician
  • Corpus Christi, TX
  • NPI 1750826095
  NPD
• Grady Memorial Hospital

  • General Acute Care Hospital
  • Chickasha, OK
  • NPI 1538169198
  NPD (past)
• Jackson County Memorial Hospital Authority

  • General Acute Care Hospital
  • Altus, OK
  • NPI 1093763781
  NPD (past)
• Mercy Hospital Oklahoma City, Inc

  • Diagnostic Radiology Physician
  • Yukon, OK
  • NPI 1730326406
  NPD (past)
• Lima Memorial Joint Operating Company

  dba Lima Memorial Health System

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732
  NPD (past)

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

• Complete Home Health of Tishomingo LLC

  • Home Health Agency
  • Tishomingo, OK
  • NPI 1891116232
  Care Compare affiliation
• Grady Memorial Hospital

  • General Acute Care Hospital
  • Chickasha, OK
  • NPI 1538169198
  Care Compare affiliation
• Lifeline Home Health Care, Inc

  • Home Health Agency
  • Chickasha, OK
  • NPI 1982609962
  Care Compare affiliation
• Ross Home Health of Chickasha LLC

  dba Elara Caring IV

  • Home Health Agency
  • Chickasha, OK
  • NPI 1699722991
  Care Compare affiliation
• Rural Wellness Anadarko Inc

  dba Rural Wellness Anadarko Hospital

  • Critical Access Hospital
  • Anadarko, OK
  • NPI 1023774601
  Care Compare affiliation

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

{
    "created_epoch": "1132531200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770940800000",
    "number": "1598748907",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2116 W IOWA AVE",
            "city": "CHICKASHA",
            "state": "OK",
            "postal_code": "730182736",
            "telephone_number": "405-224-2100",
            "fax_number": "405-779-2801"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2116 W IOWA AVE",
            "city": "CHICKASHA",
            "state": "OK",
            "postal_code": "730182736",
            "telephone_number": "405-224-2100",
            "fax_number": "405-779-2801"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GUNDERSON",
        "first_name": "ROBERT",
        "middle_name": "J",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-11-21",
        "last_updated": "2026-02-13",
        "certification_date": "2026-02-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery",
            "state": "OK",
            "license": "3030",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "100257690B",
            "state": "OK"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Ashley Jane Green-Young
• Candace Green
• Thomas Alvin Greenfield, M.ED., LPC, LADC
• Megan Griffin, D.D.S
• Wesley Guenther, DDS
• Bonnie J Gunn, LPC
• Hac Inc (Homeland Pharmcy)
• Shaun Hajjari, O.D.
• Rainer Han
• Sarah Han, DDS

• Orthopaedic Surgery Physician in Chickasha, OK
• Providers in Chickasha, OK by specialty
• Orthopaedic Surgery Physician in Oklahoma

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