James Albert Rittimann, M.D.

Primary specialty

Vascular & Interventional Radiology PhysicianTaxonomy code 2085R0204X

License

Q5081 Issued in TX

Practice address

4400 Buffalo Gap Rd Ste 2600
Abilene, TX 79606-8739

Phone

(325) 677-2201

Fax

(985) 646-0750

NPI assigned

Jun 28, 2009

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

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

Interventional Radiology

Education

University of Texas Southwestern Medical School at Dallas, 2009

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Radiology Associates of Abilene PAGroup PAC ID 1759287055, 25 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Hendrick Medical Center Hospital, Abilene, TX, CCN 450229
• Hendrick Medical Center Brownwood Hospital, Brownwood, TX, CCN 450587
• Christus St Michael Health System Hospital, Texarkana, TX, CCN 450801
• Knox County Hospital Hospital, Knox City, TX, CCN 451394

Merit-based Incentive Payment System (MIPS)

Final score

79.91 of 100Reported as group

Quality

100

Improvement activities

40

Cost

33.04

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: james.rittimann@direct.stjohnhealthsystem.com

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

• Radiology Associates of Abilene PA

  • Diagnostic Radiology Physician
  • Abilene, TX
  • NPI 1396737961

  Vascular & Interventional Radiology

  Medicare reassignment Care Compare group NPD
• Angelina Diagnostic Radiology Associates

  • Diagnostic Radiology Physician
  • Lufkin, TX
  • NPI 1033175302
  Medicare reassignment NPD
• Christus Trinity Clinic Texas

  • Family Medicine Physician
  • Tyler, TX
  • NPI 1285684225
  Medicare reassignment NPD
• Radiology Consultants of Nacogdoches LLP

  • Diagnostic Radiology Physician
  • Nacogdoches, TX
  • NPI 1578512232
  Medicare reassignment NPD
• Christus Health Ark-la-Tex

  • General Practice Physician
  • Texarkana, TX
  • NPI 1184623266
  Medicare reassignment
• Christus Trinity Clinic Texas

  • Rural Health Clinic/Center
  • Winnsboro, TX
  • NPI 1801673165
  NPD
• Citizens Medical Center County of Victoria

  • General Acute Care Hospital
  • Victoria, TX
  • NPI 1124052162
  NPD (past)
• Trinity Clinic

  • Family Medicine Physician
  • Tyler, TX
  • NPI 1922058304
  NPD (past)
• Radiology Consultants of Tulsa Inc

  • Diagnostic Radiology Physician
  • Tulsa, OK
  • NPI 1487641890
  NPD (past)

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

• Christus Health Ark-la-Tex

  • General Practice Physician
  • Texarkana, TX
  • NPI 1184623266

  Hospital

  Care Compare affiliation
• Christus Health Ark-la-Tex

  • General Acute Care Hospital
  • Texarkana, TX
  • NPI 1295736734
  Care Compare affiliation
• Hendrick Medical Center

  • General Acute Care Hospital
  • Abilene, TX
  • NPI 1528064649
  Care Compare affiliation
• Hendrick Medical Center Brownwood

  • General Acute Care Hospital
  • Brownwood, TX
  • NPI 1184233785
  Care Compare affiliation
• Knox County Hospital District

  • Critical Access Hospital
  • Knox City, TX
  • NPI 1487639175
  Care Compare affiliation

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

{
    "created_epoch": "1246147200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783382400000",
    "number": "1396973434",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 4939",
            "city": "TULSA",
            "state": "OK",
            "postal_code": "741590939",
            "telephone_number": "918-747-4975",
            "fax_number": "918-743-9058"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4400 BUFFALO GAP RD STE 2600",
            "city": "ABILENE",
            "state": "TX",
            "postal_code": "796068739",
            "telephone_number": "325-677-2201",
            "fax_number": "985-646-0750"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2600 Saint Michael Dr",
            "address_purpose": "LOCATION",
            "city": "Texarkana",
            "state": "TX",
            "postal_code": "755032372",
            "country_code": "US",
            "telephone_number": "903-614-1000",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "4111 S Darlington Ave",
            "address_2": "Ste 700",
            "address_purpose": "LOCATION",
            "city": "Tulsa",
            "state": "OK",
            "postal_code": "741356348",
            "country_code": "US",
            "telephone_number": "918-747-4975",
            "fax_number": "918-743-9058",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "RITTIMANN",
        "first_name": "JAMES",
        "middle_name": "ALBERT",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-06-28",
        "last_updated": "2026-07-07",
        "certification_date": "2026-07-07",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "TX",
            "license": "Q5081",
            "primary": true
        },
        {
            "code": "2085R0204X",
            "taxonomy_group": "",
            "desc": "Radiology, Vascular & Interventional Radiology",
            "state": "OK",
            "license": "31437",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Lincoln Kirk Riley, PHARMD
• Peggy Riley, RN FNP-C
• Claudia Ritchey, BS
• McKaela Ritchey, PHARMD
• Brittany Ritchie, FNP-C
• Natasha Rivera
• Justin Rivers
• Kristy Michal Roach, M.S., CCC-SLP
• Gary D. Roark, M.D.
• Darel Robbins, DDS

• Vascular & Interventional Radiology Physician in Abilene, TX
• Providers in Abilene, TX by specialty
• Vascular & Interventional Radiology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 7, 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.