Ellen M Boynton, PA-C

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

085004009 Issued in IL

Practice address

9701 Landmark Parkway Dr Ste 207
Saint Louis, MO 63127-1665

Phone

(314) 849-8700

NPI assigned

Mar 10, 2011

Last updated

Aug 5, 2026By the provider in NPPES

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other names 1

• Ellen M McGuigan Former name

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in IL, CA, MO3 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 3

Specialty

Physician Assistant

Education

Saint Louis University School of Medicine, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Allergy, Asthma and Sinus Care Center, LLCGroup PAC ID 5092817502, 11 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ellen.boynton.p1@direct.aascare.nextgenshare.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.

• Allergy, Asthma & Sinus Care Center, LLC

  dba Allergy, Asthma & Food Centers of St. Louis

  • Allergy Physician
  • Saint Louis, MO
  • NPI 1417034695

  IL

  Medicare reassignment Care Compare group
• Providence Medical Foundation

  • Family Medicine Physician
  • Brea, CA
  • NPI 1871607762
  Medicare reassignment
• Providence Medical Foundation

  • Surgery Physician
  • Eureka, CA
  • NPI 1477790517
  NPD
• Providence Medical Foundation

  • Family Medicine Physician
  • Anaheim, CA
  • NPI 1639715709
  NPD
• Advocate Health Centers, Inc.

  • Multi-Specialty Clinic/Center
  • Chicago, IL
  • NPI 1639111933
  NPD (past)

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

{
    "created_epoch": "1299715200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1785888000000",
    "number": "1699073916",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 874797",
            "city": "KANSAS CITY",
            "state": "MO",
            "postal_code": "641874797",
            "telephone_number": "314-849-8700"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9701 LANDMARK PARKWAY DR STE 207",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631271665",
            "telephone_number": "314-849-8700"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1414 Cross St Ste 240",
            "address_purpose": "LOCATION",
            "city": "Shiloh",
            "state": "IL",
            "postal_code": "622692941",
            "country_code": "US",
            "telephone_number": "618-607-3950",
            "fax_number": "618-607-3995",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "26922 Oso Pkwy Ste 380",
            "address_purpose": "LOCATION",
            "city": "Mission Viejo",
            "state": "CA",
            "postal_code": "926915800",
            "country_code": "US",
            "telephone_number": "949-305-0110",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "510 Fullerton Rd",
            "address_purpose": "LOCATION",
            "city": "Swansea",
            "state": "IL",
            "postal_code": "622262970",
            "country_code": "US",
            "telephone_number": "618-233-8700",
            "fax_number": "314-849-8737",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "16216 Baxter Rd Ste 299",
            "address_purpose": "LOCATION",
            "city": "Chesterfield",
            "state": "MO",
            "postal_code": "630174778",
            "country_code": "US",
            "telephone_number": "636-536-2600",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BOYNTON",
        "first_name": "ELLEN",
        "middle_name": "M",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-03-10",
        "last_updated": "2026-08-05",
        "certification_date": "2026-08-05",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MO",
            "license": "20240478142",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "IL",
            "license": "085004009",
            "primary": true
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "CA",
            "license": "52534",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2",
            "affiliation": "N",
            "endpointDescription": "BJC",
            "use": "HIE",
            "useDescription": "Health Information Exchange (HIE)",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "1414 Cross St Ste 240",
            "city": "Shiloh",
            "state": "IL",
            "country_code": "US",
            "postal_code": "622692941",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "ELLEN",
            "last_name": "MCGUIGAN",
            "middle_name": "M",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

• Charlie Roland Boyle IV, MD
• Christine Michelle Boyle, CRNA
• Joseph Emil Boyle, MD
• Nicholas Ryan Boyle, MD, PHD
• Scott Boyle
• Thomas John Bozada, CRNA
• Edmund B Bozesky, ACSW-LCSW
• Melissa Bozesky
• Teresa Bozikis, RPH
• Christopher Koosha Bozorgmehr

• Physician Assistant in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Physician Assistant in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 5, 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.