Jason Haas, DO

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

2014006550 Issued in MO

Practice address

17298 N Outer 40 Rd Ste 406
Chesterfield, MO 63005-1455

Phone

(314) 529-4900

Fax

(314) 434-2679

NPI assigned

Jul 7, 2008

Last updated

Aug 6, 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 2

Medicare fee-for-service enrollment

Enrolled in MO

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

Gastroenterology

Education

At Still University of Health Sciences, College of Osteo Med, Kirksville, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Gateway Gastroenterology IncGroup PAC ID 2668448713, 25 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Lukes Hospital Hospital, Chesterfield, MO, CCN 260179

Merit-based Incentive Payment System (MIPS)

Final score

63.97 of 100Reported as group

Quality

79.89

Promoting interoperability

0

Improvement activities

40

Cost

83.34

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Osteopathy

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir4.healow.com/fhir/r4/BBJFAD
• Direct secure messaging: jason.haas@cernerdirect.coxhealth.com

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.

• Gateway Gastroenterology Inc

  • Specialist
  • Chesterfield, MO
  • NPI 1043250400
  Medicare reassignment Care Compare group NPD
• Lester E Cox Medical Centers

  dba Ferrell-Duncan Clinic Branson

  • General Practice Physician
  • Branson, MO
  • NPI 1174952212
  NPD
• Leland H Webb MD Plastic Surgery PLC

  • Plastic and Reconstructive Surgery Physician
  • Paradise Valley, AZ
  • NPI 1164058954
  NPD
• Ozarks Medical Center

  dba Ozarks Healthcare

  • General Acute Care Hospital
  • West Plains, MO
  • NPI 1831115641
  NPD (past)

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

• St. Lukes Episcopal-Presbyterian Hospital

  dba St. Luke's Hospital

  • General Acute Care Hospital
  • Chesterfield, MO
  • NPI 1346251543
  Care Compare affiliation

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

{
    "created_epoch": "1215388800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785974400000",
    "number": "1790948008",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17298 N OUTER 40 RD STE 200",
            "city": "CHESTERFIELD",
            "state": "MO",
            "postal_code": "630051456",
            "telephone_number": "314-529-4900",
            "fax_number": "314-434-2679"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17298 N OUTER 40 RD STE 406",
            "city": "CHESTERFIELD",
            "state": "MO",
            "postal_code": "630051455",
            "telephone_number": "314-529-4900",
            "fax_number": "314-434-2679"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1008 Greystone Manor Pkwy",
            "address_purpose": "LOCATION",
            "city": "Chesterfield",
            "state": "MO",
            "postal_code": "630054941",
            "country_code": "US",
            "telephone_number": "608-780-1566",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "HAAS",
        "first_name": "JASON",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-07-07",
        "last_updated": "2026-08-06",
        "certification_date": "2026-08-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MO",
            "license": "2014006550",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200015314",
            "state": "MO"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1790948008",
            "state": "MO"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Marlee Gunn-Coleman
• Santosh Gupta, MD
• Judith M. Gurley, M.D., F.A.C.S.
• Rosita Justo Guzon, M.D.
• H K Internal Medicine Associates L.L.C.
• Paul Marshall Haas, CRNA
• Julian Stefan Habdank-Kolaczkowski, MD, AP
• Adnan Naeem Habib, MD
• Danny Hadidi, MD
• Beth A Hagedorn, BSPHARM

• Gastroenterology Physician in Chesterfield, MO
• Providers in Chesterfield, MO by specialty
• Gastroenterology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 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.