Timothy Michael Lonergan, MD

Primary specialty

Orthopaedic Foot and Ankle Surgery PhysicianTaxonomy code 207XX0004X

License

2025014331 Issued in MO

Practice address

901 Patients First Dr Ste 1300
Washington, MO 63090-4700

Phone

(636) 239-9011

Fax

(636) 239-0433

NPI assigned

Apr 11, 2013

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

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

Orthopedic Surgery

Education

Other, 2013

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Mercy Clinic Surgical Specialists LLCGroup PAC ID 1153455076, 180 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercy Home Health Home health agency, Saint Louis, MO, CCN 267565
• Mercy Hospital Washington Hospital, Washington, MO, CCN 260052
• Mercy Hospital St Louis Hospital, Saint Louis, MO, CCN 260020

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: timothylonergan@ggc.allscriptsdirect.net

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 Surgical Specialists, LLC

  • Vascular Surgery Physician
  • Washington, MO
  • NPI 1043530538
  Medicare reassignment Care Compare group NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1679516033
  Medicare reassignment NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1962442475
  NPD
• Mercy Clinic East Communities

  • Internal Medicine Physician
  • Saint Louis, MO
  • NPI 1851335228
  NPD (past)

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

• Mercy Health Services LLC

  dba Mercy Home Health

  • Home Health Agency
  • Saint Louis, MO
  • NPI 1154407112
  Care Compare affiliation
• Mercy Hospitals East Communities

  dba Mercy Hospital Washington

  • General Acute Care Hospital
  • Washington, MO
  • NPI 1285664177
  Care Compare affiliation
• 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": "1365638400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1752451200000",
    "number": "1346683059",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "901 PATIENTS FIRST DR STE 1300",
            "city": "WASHINGTON",
            "state": "MO",
            "postal_code": "630904700",
            "telephone_number": "636-239-9011",
            "fax_number": "636-239-0433"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "901 PATIENTS FIRST DR STE 1300",
            "city": "WASHINGTON",
            "state": "MO",
            "postal_code": "630904700",
            "telephone_number": "636-239-9011",
            "fax_number": "636-239-0433"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LONERGAN",
        "first_name": "TIMOTHY",
        "middle_name": "MICHAEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2013-04-11",
        "last_updated": "2025-07-14",
        "certification_date": "2025-07-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207XX0004X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Foot and Ankle Surgery",
            "state": "KY",
            "license": "52379",
            "primary": false
        },
        {
            "code": "207XX0004X",
            "taxonomy_group": "",
            "desc": "Orthopaedic Surgery, Foot and Ankle Surgery",
            "state": "MO",
            "license": "2025014331",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Josie Rae Lindemann
• Yona Renee Lindenbaum, OT
• Christian David Linz, D.O.
• Amye Litherland, FNP
• Cynthia Grace Lohrer, PT/CHT
• Joseph Michael Long, PHD
• Amber Nicole Lord
• Kara Loucks
• Royce E Lovern, D.O.
• Claire Bernadette Luck, OTR/L

• Orthopaedic Foot and Ankle Surgery Physician in Washington, MO
• Providers in Washington, MO by specialty
• Orthopaedic Foot and Ankle Surgery Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 14, 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.