Rachael A Mergenmeier, D.O.

Primary specialty

Family Medicine PhysicianTaxonomy code 207Q00000X

License

2008011538 Issued in MO

Practice address

107 Piper Hill Dr
Saint Peters, MO 63376-1651

Phone

(636) 939-3648

NPI assigned

Oct 25, 2005

Last updated

Aug 11, 2025By 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 2

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

Family Practice

Education

Other, 1998

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 Osteopathy

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, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Mercy Clinic East Communities

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

  Family Medicine

  Medicare reassignment Care Compare group NPD
• SSM Depaul Medical Group, Inc.

  dba DePaul Medical Group at Cross Keys

  • Family Medicine Physician
  • Florissant, MO
  • NPI 1952312951
  NPD (past)
• Lima Memorial Joint Operating Company

  dba Lima Memorial Health System

  • General Acute Care Hospital
  • Lima, OH
  • NPI 1336144732
  NPD (past)

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

• Mercy Hospitals East Communities

  dba Mercy Hospital St Louis

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

  dba Mercy St. Louis Transport Ambulance

  • 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": "1130198400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754870400000",
    "number": "1518957265",
    "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"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "107 PIPER HILL DR",
            "city": "SAINT PETERS",
            "state": "MO",
            "postal_code": "633761651",
            "telephone_number": "636-939-3648"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MERGENMEIER",
        "first_name": "RACHAEL",
        "middle_name": "A",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2005-10-25",
        "last_updated": "2025-08-11",
        "certification_date": "2025-08-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "OH",
            "license": "34007396",
            "primary": false
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "MO",
            "license": "2008011538",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE RAILROAD",
            "identifier": "080174665",
            "state": "OH"
        },
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "2206786",
            "state": "OH"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Menm, LLC (Miracle-Ear)
• Mental Health Life LLC
• Mental Health Life LLC
• Mercy Pharmacy Services LLC
• Mercy Pharmacy Services LLC
• Nathan S Merhaut, D.C.
• Kimberly Mae Merlenbach, LPC
• Cara Dawn Merritt, MS LPC
• Metropolitan Plastic Surgery PC
• Chad Metz

• Family Medicine Physician in Saint Peters, MO
• Providers in Saint Peters, 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 Aug 11, 2025; 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.