Individual provider Active NPI

Margaret Isabella Neff, PA-C

  • Physician Assistant
  • Saint Louis, MO
National Provider Identifier
1609580448
Registry record updated Apr 13, 2024
On this page

Key facts

NPPES NPI Registry
Primary specialty
Physician AssistantTaxonomy code 363A00000X
License
2024013590 Issued in MO
Practice address
1201 S Grand Blvd
Saint Louis, MO 63104-1016
Phone
(314) 257-8000
NPI assigned
Jan 6, 2023
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 13, 2024

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Physician Assistant 363A00000X 2024013590 MO Primary

Addresses

Primary practice location

1201 S Grand Blvd
Saint Louis, MO 63104-1016

Mailing address

1008 S Spring Ave
Saint Louis, MO 63110-2520

Other names 1

  • Maggie Neff Other name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MO, IL2 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 2

Enrollment IDStateProvider typePAC IDDetails
I20240430001136 MO Practitioner - Physician Assistant 5294175873 Reassigns benefits to 1 organization
I20251212001983 IL Practitioner - Physician Assistant 5294175873 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Physician Assistant
Education
Saint Louis University School of Medicine, 2024
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
SSM Health Care GroupGroup PAC ID 0143608372, 929 clinicians

Practice addresses (Care Compare)

10101 Woodfield LN
Saint Louis, MO 63132-2946
Phone (608) 280-4647

1201 S Grand Blvd
Saint Louis, MO 63104-1016
Phone (314) 617-2000

1225 S Grand Blvd
Saint Louis, MO 63104-1016

2505 Mission Dr
Jefferson City, MO 65109-9508
Phone (573) 681-3000

Hospital & facility affiliations

  • SSM Health Saint Louis University Hospital Hospital, Saint Louis, MO, CCN 260105

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Physician Assistant

Practice roles

OrganizationSpecialtyStatusNew patients
SSM Health Care Group CurrentSince May 1, 2024 Accepting new patients
Physician Services Corporation of Southern Illinois Inc. Physician Assistant CurrentSince Dec 1, 2025 Accepting new patients
SSM Medical Group Inc. PastSince Jan 1, 2023 Accepting new patients

Locations

1 Good Samaritan Way
Mount Vernon, IL 62864
Phone (618) 242-4600

2 Good Samaritan Way
Ste 320
Mount Vernon, IL 62864
Phone (618) 899-1944

6400 Clayton Rd
Ste 201
Saint Louis, MO 63117
Phone (314) 781-8405

1201 S Grand Blvd
Saint Louis, MO 63104
Phone (314) 257-8222

10101 Woodfield Ln
Saint Louis, MO 63132
Phone (608) 280-4647

Interoperability endpoints

  • Direct secure messaging: mneff509884@direct-ehr-ssmhc.com

Organizations & group practices 4

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.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1672963200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1712966400000",
    "number": "1609580448",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1008 S SPRING AVE",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631102520"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1201 S GRAND BLVD",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631041016",
            "telephone_number": "314-257-8000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NEFF",
        "first_name": "MARGARET",
        "middle_name": "ISABELLA",
        "credential": "PA-C",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2023-01-06",
        "last_updated": "2024-04-13",
        "certification_date": "2024-04-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MO",
            "license": "2024013590",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MAGGIE",
            "last_name": "NEFF",
            "credential": "PA-C",
            "code": "5",
            "type": "Other Name"
        }
    ]
}

Other providers in Saint Louis, MO

Sources for this page

Verify at the official NPI Registry.