Margaret Kindler Brennan Celani, MD

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

2023015152 Issued in MO

Practice address

9180 W Florissant Ave
Saint Louis, MO 63136-1421

Phone

(314) 372-3420

Fax

(314) 372-3415

NPI assigned

Jun 22, 2020

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

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

Family Practice

Education

University of Missouri, Columbia School of Medicine, 2020

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mercy Clinic East CommunitiesGroup PAC ID 7214827922, 573 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Hospital St Louis Hospital, Saint Louis, MO, CCN 260020

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

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.

• Mercy Clinic East Communities

  • Internal Medicine Physician
  • Saint Louis, MO
  • NPI 1851335228

  Family Medicine

  Medicare reassignment Care Compare group NPD
• Mercy Hospitals East Communities

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1427098169

  Family Medicine

  NPD (past)

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

• Mercy Hospitals East Communities

  • General Acute Care Hospital
  • Saint Louis, MO
  • NPI 1427098169
  Care Compare affiliation
• Mercy Hospitals East Communities

  • Land Ambulance
  • Saint Louis, MO
  • NPI 1881329902

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1592784000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1775606400000",
    "number": "1164048500",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 776084",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606776084",
            "telephone_number": "314-251-8888",
            "fax_number": "314-251-8889"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "9180 W FLORISSANT AVE",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631361421",
            "telephone_number": "314-372-3420",
            "fax_number": "314-372-3415"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12680 Olive Blvd Ste 300",
            "address_purpose": "LOCATION",
            "city": "Saint Louis",
            "state": "MO",
            "postal_code": "631416322",
            "country_code": "US",
            "telephone_number": "314-251-8888",
            "fax_number": "573-814-2784",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BRENNAN CELANI",
        "first_name": "MARGARET",
        "middle_name": "KINDLER",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-06-22",
        "last_updated": "2026-04-08",
        "certification_date": "2026-04-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MO",
            "license": "2023015152",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kyle Joshua Breitenstein, CRNA
• Alyssa Bren, MD
• Brenda Switzer, D.D.S., LLC
• Dawn Brendle
• Melissa Marie Brengle
• Brennan OB GYN Associate, P.C.
• Brian Brennan, FNP-C
• Colleen Catherine Brennan, MD
• Elizabeth Ann Brennan, NNP-BC
• Emily Brennan

• Family Medicine Physician in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Family Medicine Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 8, 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.