Karen W Simpson, MD

Primary specialty

Anatomic Pathology & Clinical Pathology PhysicianTaxonomy code 207ZP0102X

License

025694 Issued in LA

Practice address

1268 Attakapas Dr
Suite 102
Opelousas, LA 70570-6515

Phone

(337) 948-8663

Fax

(337) 948-8783

NPI assigned

Nov 21, 2006

Last updated

Sep 29, 2026By 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 1

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in LA

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

Pathology

Education

Louisiana State University School of Medicine in Shreveport, 2001

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

The Pathology Laboratory, Inc.Group PAC ID 0941240782, 6 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

84.01 of 100Reported as group

Quality

81.19

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ksimpson5310938@direct.casso.us.com
• Direct secure messaging: ksimpson912499@direct.ochsner.org

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.

• The Pathology Laboratory, Inc.

  • Clinical Medical Laboratory
  • Lake Charles, LA
  • NPI 1215917588

  Clinical Pathology

  Medicare reassignment Care Compare group NPD
• Pathology Group of Louisiana, a Professional Medical Corporation

  • Anatomic Pathology & Clinical Pathology Physician
  • Baton Rouge, LA
  • NPI 1093843450
  Medicare reassignment NPD
• Pathology Group of Louisiana, a Professional Medical Corporation

  • Clinical Medical Laboratory
  • Baton Rouge, LA
  • NPI 1194978122

  Anatomic Pathology & Clinical Pathology

  NPD
• TPL FL LLC

  dba Microbiology Associates

  • Clinical Medical Laboratory
  • Fort Lauderdale, FL
  • NPI 1801291794
  NPD
• Clinical Pathology Reliapath LLC

  • Anatomic Pathology & Clinical Pathology Physician
  • Lafayette, LA
  • NPI 1073808820
  NPD (past)
• Louisiana State University Health Sciences Center

  dba LSUHSC-S Department of Pathology

  • Anatomic Pathology & Clinical Pathology Physician
  • Shreveport, LA
  • NPI 1326117003
  NPD (past)

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

{
    "created_epoch": "1164067200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1790640000000",
    "number": "1831264373",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1268 ATTAKAPAS DR",
            "address_2": "SUITE 102",
            "city": "OPELOUSAS",
            "state": "LA",
            "postal_code": "705706515",
            "telephone_number": "337-948-8663",
            "fax_number": "337-948-8783"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1268 ATTAKAPAS DR",
            "address_2": "SUITE 102",
            "city": "OPELOUSAS",
            "state": "LA",
            "postal_code": "705706515",
            "telephone_number": "337-948-8663",
            "fax_number": "337-948-8783"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIMPSON",
        "first_name": "KAREN",
        "middle_name": "W",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-11-21",
        "last_updated": "2026-09-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZP0102X",
            "taxonomy_group": "",
            "desc": "Pathology, Anatomic Pathology & Clinical Pathology",
            "state": "LA",
            "license": "025694",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1041947",
            "state": "LA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• Makayla Simien Simien
• Tremika Michelle Simmons, PHARM D.
• Shauntel Simon-Lewis
• Emily Fruge Simon, M.D.
• Shannon Simon
• Mia A Singleton-Ben, M.D.
• Eric Sklenar, PHARMD
• Sleep Management, L.L.C. (VieMed)
• Sleep Resource of Opelousas, L.L.C.
• Sleep Resources of Opelousas, LLC

• Anatomic Pathology & Clinical Pathology Physician in Opelousas, LA
• Providers in Opelousas, LA by specialty
• Anatomic Pathology & Clinical Pathology Physician in Louisiana

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 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.