Leah E Lillmars, PA

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

5601006268 Issued in MI

Practice address

6225 Prairie St
Norton Shores, MI 49444-7831

Phone

(231) 798-9500

Fax

(231) 798-9533

NPI assigned

Mar 8, 2012

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 MI

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 1

Specialty

Physician Assistant

Education

Other, 2012

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Trinity Health Muskegon Hospital Hospital, Muskegon, MI, CCN 230066

Merit-based Incentive Payment System (MIPS)

Final score

97.45 of 100Reported as group

Promoting interoperability

97

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/6463/brand/1/csg/1/fhir/r4
• Direct secure messaging: leah.lillmars.1@15079.direct.athenahealth.com
• Direct secure messaging: leah.lillmars@forefrontdermatology.emadirect.md

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.

• Lakeshore Derm & Laser Center PLC

  • Procedural Dermatology Physician
  • Norton Shores, MI
  • NPI 1538209945
  Medicare reassignment
• Lakeshore Urology PLC

  • Urology Physician
  • Grand Haven, MI
  • NPI 1275872509
  NPD (past)
• Mercy Urgent Care

  • Urgent Care Clinic/Center
  • Muskegon, MI
  • NPI 1861432692

  Physician Assistant

  NPD (past)

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

• Mercy Health Partners

  • General Acute Care Hospital
  • Muskegon, MI
  • NPI 1831132133
  Care Compare affiliation

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

{
    "created_epoch": "1331164800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768435200000",
    "number": "1346514304",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "801 YORK ST",
            "city": "MANITOWOC",
            "state": "WI",
            "postal_code": "542204630",
            "telephone_number": "920-663-9008",
            "fax_number": "920-663-9008"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6225 PRAIRIE ST",
            "city": "NORTON SHORES",
            "state": "MI",
            "postal_code": "494447831",
            "telephone_number": "231-798-9500",
            "fax_number": "231-798-9533"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LILLMARS",
        "first_name": "LEAH",
        "middle_name": "E",
        "credential": "PA",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-03-08",
        "last_updated": "2026-01-15",
        "certification_date": "2026-01-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "MI",
            "license": "5601006268",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• William Deane Lengkeek, D.C.
• Ronald P Leyder Jr., D.D.S.
• Angela Lynn Leyrer, NP
• Life Change
• Lilac Counseling Services
• Rebecca Lindgren
• Little River Band of Ottawa Indians
• Little River Band of Ottawa Indians
• Little River Band of Ottawa Indians
• Brookelyn F Lorenz

• Physician Assistant in Norton Shores, MI
• Providers in Norton Shores, MI by specialty
• Physician Assistant in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 15, 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.