Dr. Karen W. Simpson, MD
- Medicare services, 2024
- 36
- Medicare patients, 2024
- 21
- MIPS score, 2024
- 84
- Hospital affiliations
- 2
- Industry payments
- $57
- Practice address
- 539 East Prudhomme Street, Opelousas, LA 70570
- Practice phone
- Call (337) 948-3011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Simpson's professional email, personal email and mobile number
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Dr. Karen W. Simpson is a pathologist in Opelousas, Louisiana
Dr. Simpson practices at Opelousas General Health System in Opelousas, Louisiana, part of St Landry Parish Government.
Dr. Simpson's NPI, 1831264373, was assigned on November 21, 2006. Dr. Simpson graduated from Louisiana State University School of Medicine in Shreveport in 2001. Dr. Simpson holds Louisiana license 025694.
- NPI
- 1831264373NPI Registry (opens in a new tab)
- NPI enumeration date
- November 21, 2006
- NPI status
- Active
- Practice phone
- (337) 948-3011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Karen W. Simpson practices at Opelousas General Health System in Opelousas, Louisiana
Dr. Simpson's primary practice is Opelousas General Health System, at 539 East Prudhomme Street, Opelousas, LA 70570 in St. Landry Parish. The practice phone is (337) 948-3011.
- Opelousas General Health System539 East Prudhomme Street, Opelousas, LA 70570 · St. Landry ParishPhone(337) 948-3011
Source: Dmand AI Affiliation Data
Dr. Karen W. Simpson is affiliated with 4 sites of care and 2 medical groups
Dr. Simpson's primary practice is Opelousas General Health System in Opelousas, Louisiana, part of St Landry Parish Government. The medical group on file is Pathology Group of Louisiana. Dmand AI also links Dr. Simpson to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Karen W. Simpson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Simpson practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Opelousas General Health System | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Karen W. Simpson is one of 177 pathologists in Louisiana
Anatomic pathology and clinical pathology is Dr. Simpson's primary specialty in the NPI Registry, under taxonomy code 207ZP0102X. Dr. Simpson is licensed in Louisiana.
Specialties and state licenses
- Anatomic pathology and clinical pathology, LouisianaPrimary
Pathologists near Dr. Simpson
Counts of pathologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Karen W. Simpson billed Medicare for 36 services in 2024
CMS data shows 36 Medicare services from Dr. Simpson across 1 procedure code in 2024, for 21 Medicare patients. Medicare paid $1,003 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Simpson's Medicare services by type, 2019 to 2024
- 2019
- 2024
- Lab and pathology
- 2019: 5772024: 3694%
- Other services
- 2019: 1982024: 0100%
- Surgery
- 2019: 142024: 0100%
Dr. Simpson compared with the Louisiana median for pathologists, 2024
- Dr. Simpson
- Louisiana median
- Medicare services
- 36vs 89696% below
- Medicare patients
- 21vs 33194% below
Medians across 171 pathologists in Louisiana with Dmand AI profiles that report each measure.
Dr. Simpson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Simpson and other pathologists in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Karen W. Simpson treated 21 Medicare patients in 2024, average age 68
CMS counts 21 Medicare patients who saw Dr. Simpson in 2024. 75% of them have arthritis, and 75% have high blood pressure. Their average risk score is 1.23, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Simpson's median patient age at 55, with 75% women.
Chronic conditions among Dr. Simpson's Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol71%
Share of Medicare patients with each condition. A patient can have several.
Dr. Simpson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women75%
- Men25%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Karen W. Simpson scored 84 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 84 out of 100 for Dr. Simpson for performance year 2024, reported as part of a group.
Dr. Simpson's MIPS scores, performance year 2024
- 84of 100Final score
- 81.2of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Karen W. Simpson received $57 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Simpson from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. Roche Diagnostics Corporation paid the most, $57.
Companies that paid Dr. Simpson the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Karen W. Simpson graduated from Louisiana State University School of Medicine in Shreveport
Dr. Simpson graduated from Louisiana State University School of Medicine in Shreveport in 2001.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Karen W. Simpson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Karen W. Simpson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Karen W. Simpson's NPI number?
Dr. Karen W. Simpson's NPI number is 1831264373. It was assigned on November 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Karen W. Simpson?
Dr. Karen W. Simpson is a pathologist in Opelousas, Louisiana. The primary specialty in the NPI Registry is Anatomic Pathology & Clinical Pathology Physician (taxonomy code 207ZP0102X).
Where does Dr. Karen W. Simpson practice?
Dr. Simpson practices at 539 East Prudhomme Street, Opelousas, LA 70570. Dr. Simpson's primary practice is Opelousas General Health System in Opelousas, Louisiana, part of St Landry Parish Government. Dmand AI also links Dr. Simpson to 1 hospital, 2 group practices and clinics and 1 medical group.
What is Dr. Karen W. Simpson's office phone number?
The practice phone on file for Dr. Simpson is (337) 948-3011.
What is Dr. Karen W. Simpson's medical license number?
Dr. Simpson holds Louisiana license 025694.
Which hospitals is Dr. Karen W. Simpson affiliated with?
Dr. Simpson practices at Opelousas General Health System in Opelousas, Louisiana. Dmand AI links Dr. Simpson to 1 more hospital.
What medical group is Dr. Karen W. Simpson part of?
Dr. Simpson is linked to Pathology Group of Louisiana. Dmand AI links Dr. Simpson to 1 more medical group.
Does Dr. Karen W. Simpson accept Medicare?
Yes. CMS data shows Dr. Simpson billed Medicare for 36 services in 2024.
What is Dr. Karen W. Simpson's MIPS score?
Dr. Simpson's MIPS final score for performance year 2024 is 84 out of 100, reported as part of a group.
How many Medicare patients does Dr. Karen W. Simpson see?
CMS counts 21 Medicare patients who saw Dr. Simpson in 2024, with an average age of 68.
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What services does Dr. Karen W. Simpson bill to Medicare?
In 2024, Dr. Simpson's most billed Medicare services were lab and pathology test (88305).
Where did Dr. Karen W. Simpson go to medical school?
Dr. Simpson graduated from Louisiana State University School of Medicine in Shreveport in 2001.
Has Dr. Karen W. Simpson received payments from drug or device companies?
CMS Open Payments shows $57 in general payments to Dr. Simpson from 1 company from 2020 to 2020. The largest total came from Roche Diagnostics Corporation.
How long has Dr. Karen W. Simpson been practicing?
Dr. Simpson graduated from medical school in 2001, 25 years ago.
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