Ian M Greenberg, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

BP10069838 Issued in TX

Practice address

122 W Colorado Blvd
Dallas, TX 75208-2382

Phone

(214) 947-6700

NPI assigned

Jun 29, 2017

Last updated

Oct 22, 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 4

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, MI, ID3 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 3

Specialty

GastroenterologyAlso: Internal Medicine

Education

University of Missouri, Kansas City, School of Medicine, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Dallas Medical Specialists, PLLCGroup PAC ID 3072895788, 86 clinicians

St Lukes Clinic LLCGroup PAC ID 1052217478, 313 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Lukes Magic Valley Medical Center Hospital, Twin Falls, ID, CCN 130002
• Medical City Arlington Hospital, Arlington, TX, CCN 450675

Merit-based Incentive Payment System (MIPS)

Final score

82.37 of 100Reported as group

Quality

68.64

Promoting interoperability

99

Improvement activities

40

Cost

73.42

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: igreenberg868693@direct.sw.org

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.

• Dallas Medical Specialists, PLLC

  • Internal Medicine Physician
  • Dallas, TX
  • NPI 1508217811
  Medicare reassignment Care Compare group NPD
• St Luke's Clinic LLC

  dba St Lukes Clinic - Magic Valley/Jerome

  • Family Medicine Physician
  • Twin Falls, ID
  • NPI 1790718229

  Internal Medicine

  Medicare reassignment Care Compare group NPD
• Mymichigan Medical Center Midland

  • Multi-Specialty Clinic/Center
  • Midland, MI
  • NPI 1205889490
  Medicare reassignment NPD
• Mymichigan Medical Center Saginaw

  dba Ascension Medical Group Hematology and Oncology

  • Medical Oncology Physician
  • Saginaw, MI
  • NPI 1538573605
  Medicare reassignment NPD
• Mymichigan Medical Center Midland

  • Anesthesiology Physician
  • Midland, MI
  • NPI 1649010455
  NPD
• Mymichigan Medical Center Saginaw

  dba Ascension Medical Group Valley Gastroenterology

  • Gastroenterology Physician
  • Saginaw, MI
  • NPI 1073084141
  NPD
• Mymichigan Medical Center Saginaw

  dba Ascension Medical Group Riverfront Cardiology

  • Cardiovascular Disease Physician
  • Saginaw, MI
  • NPI 1467736132
  NPD
• Mymichigan Medical Center Saginaw

  dba Ascension Medical Group Heritage Family Physicians

  • Family Medicine Physician
  • Saginaw, MI
  • NPI 1518042530
  NPD
• St Luke's Magic Valley Regional Medical Center LTD

  dba St Lukes Retail Pharmacy Twin Falls

  • Community/Retail Pharmacy
  • Twin Falls, ID
  • NPI 1760203921
  NPD (past)

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

• Columbia Medical Center of Arlington Subsidiary LP

  dba Medical City Arlington

  • General Acute Care Hospital
  • Arlington, TX
  • NPI 1134172406
  Care Compare affiliation
• St. Luke's Magic Valley Regional Medical Center, LTD.

  dba St Lukes Magic Valley - Air Ambulance

  • General Acute Care Hospital
  • Twin Falls, ID
  • NPI 1932154705
  Care Compare affiliation

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

{
    "created_epoch": "1498694400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1792627200000",
    "number": "1649791542",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3930 MCKINNEY AVE APT 209",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752042042",
            "telephone_number": "503-702-3001"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "122 W COLORADO BLVD",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752082382",
            "telephone_number": "214-947-6700"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "775 Pole Line Rd W Ste 203",
            "address_purpose": "LOCATION",
            "city": "Twin Falls",
            "state": "ID",
            "postal_code": "833015820",
            "country_code": "US",
            "telephone_number": "208-814-8300",
            "fax_number": "208-933-4909",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GREENBERG",
        "first_name": "IAN",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2017-06-29",
        "last_updated": "2026-10-22",
        "certification_date": "2026-10-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125071387",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MI",
            "license": "EMC0006358",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "ID",
            "license": "4971345",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "TX",
            "license": "BP10069838",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Walker Green, DPT
• Walter L Green, M.D.
• Kristina Greenawalt
• Benjamin M Greenberg, MD
• David Elihu Greenberg, M.D.
• Lynn Allison Greenberg, OTR
• Mindy Greenberg, PA-C, MS
• Tasha Zemrus Greenberg, M.D.
• Greene Counseling & Guidance
• Greene Monitoring, PLLC

• Gastroenterology Physician in Dallas, TX
• Providers in Dallas, TX by specialty
• Gastroenterology Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 22, 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.