Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen W Simpson, MD

Anatomic Pathology & Clinical Pathology Physician in Opelousas, LA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1831264373

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Karen W Simpson

Credential MD

Sex Female

Practice address 1268 Attakapas Dr, Suite 102, Opelousas, LA, 70570

Phone (337) 948-8663

Fax (337) 948-8783

Enumeration date Nov 21, 2006

Last updated in NPPES Apr 19, 2011

Taxonomy & licenses

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License 025694 (LA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
1041947	Medicaid	LA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1831264373 active?

Yes, as of the latest NPPES snapshot, NPI 1831264373 is active (record last updated 2011-04-19).

How do I verify Karen Simpson's NPI record?

Cross-check NPI 1831264373 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Thomas Jarnagin Specialist · Opelousas, LA NPI 1265411797 Louis Kerkhoff Obstetrics & Gynecology Physician · Opelousas, LA NPI 1841259959 Louis Kerkhoff, MD, Apmc Obstetrics & Gynecology Physician · Opelousas, LA NPI 1992969125 Louisiana Rehabilitation and Therapy, LLC Physical Therapy Clinic/Center · Opelousas, LA NPI 1720228513 Chrissy Lalonde Anatomic Pathology & Clinical Pathology Physician · Opelousas, LA NPI 1982845277

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-19.