Dr. Jacob Riley Karr, MD
- Medicare services, 2024
- 1,724
- Medicare patients, 2024
- 669
- Part D claims, 2024
- 2,584
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 443 Heymann Boulevard, Lafayette, LA 70503
- Practice phone
- Call (337) 269-1126
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Acadiana Endoscopy Center
Surgery Center - Medicare-Certified · Lafayette, Louisiana
Find Dr. Karr's professional email, personal email and mobile number
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Dr. Jacob Riley Karr is a gastroenterologist in Lafayette, Louisiana
Dr. Karr practices at Acadiana Endoscopy Center in Lafayette, Louisiana.
Dr. Karr's NPI, 1790919173, was assigned on May 13, 2009. Dr. Karr graduated from Louisiana State University School of Medicine in Shreveport in 2009. Dr. Karr holds Louisiana license MD.204706.
- NPI
- 1790919173NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648490524
- NPI enumeration date
- May 13, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (337) 269-1126
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jacob Riley Karr practices at Acadiana Endoscopy Center in Lafayette, Louisiana
Dr. Karr's primary practice is Acadiana Endoscopy Center, at 443 Heymann Boulevard, Lafayette, LA 70503. The practice phone is (337) 269-1126.
- Acadiana Endoscopy Center443 Heymann Boulevard, Lafayette, LA 70503Phone(337) 269-1126
Source: Dmand AI Affiliation Data
Dr. Jacob Riley Karr is affiliated with 10 sites of care and 4 medical groups
Dr. Karr's primary practice is Acadiana Endoscopy Center in Lafayette, Louisiana. Dr. Karr is also affiliated with Ochsner Lafayette General Medical Center. The medical group on file is Texas Digestive Disease Consultants. Dmand AI also links Dr. Karr to 4 more hospitals, 4 group practices and clinics and 3 medical groups, 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. Jacob Riley Karr's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Karr practices, 10 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Acadiana Endoscopy Center | Available with a free account |
| +9 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jacob Riley Karr is one of 226 gastroenterologists in Louisiana
Gastroenterology is Dr. Karr's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Karr is licensed in Louisiana.
Specialties and state licenses
- Gastroenterology, LouisianaPrimary
Gastroenterologists near Dr. Karr
Counts of gastroenterologists 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. Jacob Riley Karr billed Medicare for 1,724 services in 2024
CMS data shows 1,724 Medicare services from Dr. Karr across 25 procedure codes in 2024, for 669 Medicare patients. Medicare paid $121,612 for them.
Dr. Karr's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 7682024: 7571%
- Surgery
- 2023: 5262024: 4887%
- Office and hospital visits
- 2023: 5632024: 29548%
- Other services
- 2023: 672024: 7613%
- Tests and treatments
- 2023: 232024: 72213%
- Imaging
- 2023: 132024: 36177%
Where Dr. Karr's Medicare services took place, 2024
- In an office99057%
- In a facility73443%
Dr. Karr compared with the Louisiana median for gastroenterologists, 2024
- Dr. Karr
- Louisiana median
- Medicare services
- 1,724vs 4693.7 times
- Medicare patients
- 669vs 2772.4 times
- Part D claims
- 2,390vs 6263.8 times
Medians across 228 gastroenterologists in Louisiana with Dmand AI profiles that report each measure.
Dr. Karr'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. Karr and other gastroenterologists in Louisiana.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jacob Riley Karr treated 669 Medicare patients in 2024, average age 73
CMS counts 669 Medicare patients who saw Dr. Karr in 2024. The largest group is 65 to 74, with 356 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.53, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Karr's median patient age at 63, with 58% women.
Dr. Karr's Medicare patients by age, 2024
Dr. Karr's Medicare patients by sex, 2024
- Women38758%
- Men28242%
Chronic conditions among Dr. Karr's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis50%
- Ischemic heart disease45%
- Diabetes41%
- Anxiety33%
- Mood disorders29%
- Depression28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Karr's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jacob Riley Karr wrote 2,584 Medicare Part D claims in 2024
In 2024, Dr. Karr wrote 2,584 Medicare Part D claims for 764 patients. 78% of them were for generic drugs. CMS names the drug for 2,390 of them, across 32 drugs with 11 or more claims each, at $717,762 in total drug cost. In 2023, CMS named 1,954 claims across 26 drugs.
Dr. Karr's Part D claims by kind of drug, 2024
- Generic2,018 claims78%
- Brand-name566 claims22%
Dr. Karr's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Karr's Part D claims, 2024
- Antibiotics1%36 of 2,584 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,9542024: 2,39022%
Drugs named by CMS: 32 in 2024, 26 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jacob Riley Karr scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Karr for performance year 2024, reported as part of a group. Dr. Karr accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 400 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Karr, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Karr's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Karr ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 97th percentile400 procedures
- Colonoscopy
- 97th percentile307 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Jacob Riley Karr has 2 publications on record
Dmand AI links 2 papers to Dr. Karr in 2011. Dr. Karr's most frequent co-authors are Donnie Franklin Aultman, MD, Marc Richard Dean, MD and Jonathan J. Lu.
Dr. Karr's most frequent co-authors
- Donnie Franklin Aultman, MD1 shared paper
- Marc Richard Dean, MD1 shared paper
- Jonathan J. Lu1 shared paper
Recent publications by Dr. Karr
See who Dr. Karr researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Karr works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jacob Riley Karr has worked on 1 clinical trial
Dmand AI links Dr. Karr to 1 clinical trial. Conditions studied include Weight Loss and Body Weight Changes.
Conditions in Dr. Karr's trials
- Weight Loss
- Body Weight Changes
Investigators on the most trials with Dr. Karr
- Peter S. Billing, MD1 shared trial
- Trace William Curry, MD1 shared trial
- Dayna S. Early, MD1 shared trial
Recent clinical trials with Dr. Karr
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Jacob Riley Karr received $47,763 in industry payments from 2016 to 2025
CMS Open Payments shows 792 general payments to Dr. Karr from 43 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 64% of the total. Allergan Inc. paid the most, $32,332.
General payments to Dr. Karr by program year, 2016 to 2025
General payments to Dr. Karr by kind, 2016 to 2025
- Speaker and faculty fees$30,36064%
- Food and beverage$12,98227%
- Travel and lodging$2,3455%
- Consulting fees$1,9954%
- Education$810%
Companies that paid Dr. Karr the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jacob Riley Karr graduated from Louisiana State University School of Medicine in Shreveport
Dr. Karr graduated from Louisiana State University School of Medicine in Shreveport in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jacob Riley Karr'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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (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. Jacob Riley Karr
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. Jacob Riley Karr's NPI number?
Dr. Jacob Riley Karr's NPI number is 1790919173. It was assigned on May 13, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Jacob Riley Karr?
Dr. Jacob Riley Karr is a gastroenterologist in Lafayette, Louisiana. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Jacob Riley Karr practice?
Dr. Karr practices at 443 Heymann Boulevard, Lafayette, LA 70503. Dr. Karr's primary practice is Acadiana Endoscopy Center in Lafayette, Louisiana. Dmand AI also links Dr. Karr to 4 hospitals, 4 group practices and clinics and 3 medical groups.
What is Dr. Jacob Riley Karr's office phone number?
The practice phone on file for Dr. Karr is (337) 269-1126.
What is Dr. Jacob Riley Karr's medical license number?
Dr. Karr holds Louisiana license MD.204706.
Which hospitals is Dr. Jacob Riley Karr affiliated with?
Dr. Karr is affiliated with Ochsner Lafayette General Medical Center. Dmand AI links Dr. Karr to 4 more hospitals.
What medical group is Dr. Jacob Riley Karr part of?
Dr. Karr is linked to Texas Digestive Disease Consultants. Dmand AI links Dr. Karr to 3 more medical groups.
Does Dr. Jacob Riley Karr accept Medicare?
Yes. CMS data shows Dr. Karr billed Medicare for 1,724 services in 2024, and Dr. Karr accepts Medicare assignment.
What is Dr. Jacob Riley Karr's MIPS score?
Dr. Karr's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Jacob Riley Karr see?
CMS counts 669 Medicare patients who saw Dr. Karr in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
What services does Dr. Jacob Riley Karr bill to Medicare?
In 2024, Dr. Karr's most billed Medicare services were lab and pathology test (88305), lab and pathology test (88313) and surgery: digestive system (43239).
Where did Dr. Jacob Riley Karr go to medical school?
Dr. Karr graduated from Louisiana State University School of Medicine in Shreveport in 2009.
What drugs does Dr. Jacob Riley Karr prescribe most?
In 2024 Medicare Part D data, Dr. Karr's most prescribed drugs by claims were Pantoprazole Sodium, Sod Sulf-Potass Sulf-Mag Sulf and Famotidine.
Has Dr. Jacob Riley Karr received payments from drug or device companies?
CMS Open Payments shows $47,763 in general payments to Dr. Karr from 43 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Jacob Riley Karr been practicing?
Dr. Karr graduated from medical school in 2009, 17 years ago.
Does Dr. Jacob Riley Karr do research?
Dmand AI links 2 publications to Dr. Karr. Dr. Karr has worked on 1 clinical trial.
Who does Dr. Jacob Riley Karr publish with?
Dr. Karr's most frequent co-authors are Donnie Franklin Aultman, MD (1 shared paper), Marc Richard Dean, MD (1 shared paper) and Jonathan J. Lu (1 shared paper).
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