Julia D.E. Chaffay, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

2023011142 Issued in MO

Practice address

4901 Forest Park Ave
Div OBGYN MFM and US, Ste 710
Saint Louis, MO 63108-1495

Phone

(314) 454-8181

Fax

(314) 747-1429

NPI assigned

Apr 9, 2019

Sex

Female

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

Electronic endpoints 1

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

Obstetrics/Gynecology

Education

Other, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Washington UniversityGroup PAC ID 9830008770, 2,968 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Barnes Jewish Hospital Hospital, Saint Louis, MO, CCN 260032

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Interoperability endpoints

• Direct secure messaging: jwhitley19974@gwmfa.direct-ci.com
• FHIR API: https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/

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.

• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1760422265

  MO

  Medicare reassignment
• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827
  NPD (past)
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1134169568
  NPD (past)

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

• Barnes Jewish Hospital

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1649299827

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1554768000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774224000000",
    "number": "1508329384",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-454-8181",
            "fax_number": "314-747-1429"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4901 FOREST PARK AVE",
            "address_2": "DIV OBGYN MFM AND US, STE 710",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631081495",
            "telephone_number": "314-454-8181",
            "fax_number": "314-747-1429"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "CHAFFAY",
        "first_name": "JULIA",
        "middle_name": "D.E.",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-09",
        "last_updated": "2026-03-23",
        "certification_date": "2026-03-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "MO",
            "license": "2023011142",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "200121993",
            "state": "MO"
        }
    ],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "4901 Forest Park Ave",
            "address_2": "Div OBGYN MFM and US, Ste 710",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631081495",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Chadwick T Caudill MD PS
• Gary Cortland Chadwick, LPC
• Haley Elizabeth Chadwick, MSN, FNP-C
• Ricky Chae, MD
• Brandon Alexander Chaffay, MD
• Chaganti and Associates PC
• Georges Chahoud, MD
• Tagann Chaisam, M.D.
• Bernard R Chaitman, MD
• Hasmik Chakaryan, LPC

• All providers in Saint Louis, MO
• Obstetrics & Gynecology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 23, 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.