Karen Simpson, MD
NPI 1831264373 · Anatomic Pathology & Clinical Pathology Physician · Opelousas, LA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Simpson, MD is a Anatomic Pathology & Clinical Pathology Physician provider in Opelousas, LA (NPI 1831264373).
Provider details
- NPI number
- 1831264373
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 025694 (LA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
36 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 36 | $35 |
Typical Medicare-allowed amounts for these services range $35–$35 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-21
- Last updated
- 2011-04-19
Frequently asked questions
- What is Karen Simpson's NPI number?
- Karen Simpson's National Provider Identifier (NPI) is 1831264373, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Simpson's specialty?
- Karen Simpson is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Simpson located?
- Karen Simpson's practice location on file with NPPES is 1268 Attakapas Dr, Opelousas, LA 70570-6515.
- What is Karen Simpson's phone number?
- The practice phone number listed in the NPPES registry for Karen Simpson is (337) 948-8663.
- Does Karen Simpson accept Medicare?
- Karen Simpson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Simpson's NPI active?
- Yes — Karen Simpson's NPI (1831264373) is active in the NPPES registry as of the last update on 2011-04-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.