Dig Liver Dis
CholecystitisEnd Stage Liver DiseaseGallbladder Diseases
Dr. James W. Roat, MD
NPI1457331621PAC ID2860459229
- Medicare services, 2024
- 499
- Medicare patients, 2024
- 323
- Part D claims, 2024
- 1,613
- Publications
- 3
- Hospital affiliations
- 1
- Practice address
- 2730 Pierce Street, Sioux City, IA 51104
- Practice phone
- Call (712) 294-7740
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Pierce Street Same Day Surgery
Surgery Center - Medicare-Certified · Sioux City, Iowa
Find Dr. Roat's professional email, personal email and mobile number
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Dr. James W. Roat is a gastroenterologist in Sioux City, Iowa
Dr. Roat practices at Pierce Street Same Day Surgery in Sioux City, Iowa.
Dr. Roat's NPI, 1457331621, was assigned on January 22, 2006. Dr. Roat graduated from George Washington University School of Medicine in 1977. Dr. Roat holds Iowa license 23838.
NPI and contact details
- NPI
- 1457331621NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860459229
- NPI enumeration date
- January 22, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (712) 294-7740
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 75
- Medical school graduation
- 1977
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James W. Roat practices at Pierce Street Same Day Surgery in Sioux City, Iowa
Dr. Roat's primary practice is Pierce Street Same Day Surgery, at 2730 Pierce Street, Sioux City, IA 51104. The practice phone is (712) 294-7740.
- Pierce Street Same Day Surgery2730 Pierce Street, Sioux City, IA 51104Phone(712) 294-7740
Source: Dmand AI Affiliation Data
Dr. James W. Roat is affiliated with 3 sites of care
Dr. Roat's primary practice is Pierce Street Same Day Surgery in Sioux City, Iowa. Dr. Roat is also affiliated with UnityPoint Health - St. Luke's. Dmand AI also links Dr. Roat to 1 more physician office, named with a free account.
Pierce Street Same Day SurgeryPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. James W. Roat's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Roat practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pierce Street Same Day Surgery | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James W. Roat is one of 113 gastroenterologists in Iowa
Gastroenterology is Dr. Roat's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Roat is licensed in Iowa.
Specialties and state licenses
- Gastroenterology, IowaPrimary
Gastroenterologists near Dr. Roat
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
113gastroenterologists in Iowa
3gastroenterologists in Sioux City
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James W. Roat billed Medicare for 499 services in 2024
CMS data shows 499 Medicare services from Dr. Roat across 10 procedure codes in 2024, for 323 Medicare patients. Medicare paid $49,397 for them.
Medicare services, 2024499
Medicare patients323
Paid by Medicare$49,397
Procedure codes10
Dr. Roat's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 4042024: 26135%
- Other services
- 2023: 1852024: 13328%
- Office and hospital visits
- 2023: 1422024: 10526%
Where Dr. Roat's Medicare services took place, 2024
- In an office8317%
- In a facility41683%
Dr. Roat compared with the Iowa median for gastroenterologists, 2024
- Dr. Roat
- Iowa median
- Medicare services
- 499vs 513Close to median
- Medicare patients
- 323vs 3508% below
- Part D claims
- 1,536vs 3903.9 times
Medians across 118 gastroenterologists in Iowa with Dmand AI profiles that report each measure.
Dr. Roat'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. Roat and other gastroenterologists in Iowa.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James W. Roat treated 323 Medicare patients in 2024, average age 73
CMS counts 323 Medicare patients who saw Dr. Roat in 2024. The largest group is 65 to 74, with 176 patients. 74% of them have high blood pressure, and 74% have high cholesterol. 9% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Roat's median patient age at 64, with 53% women.
Medicare patients, 2024323
Average age73
Average risk score0.99
Also on Medicaid9%
Dr. Roat's Medicare patients by age, 2024
Dr. Roat's Medicare patients by sex, 2024
- Women17053%
- Men15347%
Chronic conditions among Dr. Roat's Medicare patients, 2024
- High blood pressure74%
- High cholesterol74%
- Arthritis37%
- Diabetes26%
- Anxiety24%
- Chronic kidney disease24%
- Cancer23%
- Ischemic heart disease22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Roat's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James W. Roat wrote 1,613 Medicare Part D claims in 2024
In 2024, Dr. Roat wrote 1,613 Medicare Part D claims for 541 patients. 84% of them were for generic drugs. CMS names the drug for 1,536 of them, across 13 drugs with 11 or more claims each, at $104,384 in total drug cost. In 2023, CMS named 1,862 claims across 12 drugs.
Part D claims, 20241,613
Drugs named by CMS13
Total drug cost$104,384
Part D patients541
Dr. Roat's Part D claims by kind of drug, 2024
- Generic1,352 claims84%
- Brand-name261 claims16%
Dr. Roat'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. Roat's Part D claims, 2024
- Antibiotics1%21 of 1,613 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: 1,8622024: 1,53618%
Drugs named by CMS: 13 in 2024, 12 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. James W. Roat ranks in the 85th percentile for colonoscopy in Medicare
Dr. Roat accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 127 procedures of colonoscopy by Dr. Roat, more than 85% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Roat ranks in Medicare procedure volume
- Colonoscopy
- 85th percentile127 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 74th percentile88 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. James W. Roat has 3 publications on record
Dmand AI links 3 papers to Dr. Roat, published from 2013 to 2014. The most frequent topics are Liver Cirrhosis. Dr. Roat's most frequent co-authors are Christine Pocha, MD, James William Roat, MD and Meagan Elizabeth Gray, MD.
Papers3
Years published2013 to 2014
Topics Dr. Roat writes about most
- Liver Cirrhosis
Dr. Roat's most frequent co-authors
- Christine Pocha, MD2 shared papers
- James William Roat, MD2 shared papers
- Meagan Elizabeth Gray, MD1 shared paper
Recent publications by Dr. Roat
Antibodies, MonoclonalAntineoplastic AgentsColitis
Am J Gastroenterol
Liver CirrhosisNail DiseasesNails
See who Dr. Roat researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Roat 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. James W. Roat received $386 in industry payments from 2016 to 2024
CMS Open Payments shows 15 general payments to Dr. Roat from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $200.
General payments to Dr. Roat by program year, 2016 to 2024
Companies that paid Dr. Roat the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James W. Roat graduated from George Washington University School of Medicine
Dr. Roat graduated from George Washington University School of Medicine in 1977.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James W. Roat'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)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 |
| 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. James W. Roat
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. James W. Roat's NPI number?
Dr. James W. Roat's NPI number is 1457331621. It was assigned on January 22, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James W. Roat?
Dr. James W. Roat is a gastroenterologist in Sioux City, Iowa. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. James W. Roat practice?
Dr. Roat practices at 2730 Pierce Street, Sioux City, IA 51104. Dr. Roat's primary practice is Pierce Street Same Day Surgery in Sioux City, Iowa. Dmand AI also links Dr. Roat to 1 physician office.
What is Dr. James W. Roat's office phone number?
The practice phone on file for Dr. Roat is (712) 294-7740.
What is Dr. James W. Roat's medical license number?
Dr. Roat holds Iowa license 23838.
Which hospitals is Dr. James W. Roat affiliated with?
Dr. Roat is affiliated with UnityPoint Health - St. Luke's.
Does Dr. James W. Roat accept Medicare?
Yes. CMS data shows Dr. Roat billed Medicare for 499 services in 2024, and Dr. Roat accepts Medicare assignment.
How many Medicare patients does Dr. James W. Roat see?
CMS counts 323 Medicare patients who saw Dr. Roat in 2024, with an average age of 73.
What services does Dr. James W. Roat bill to Medicare?
In 2024, Dr. Roat's most billed Medicare services were surgery: digestive system (43239), medicare service (G0105) and surgery: digestive system (43450).
Where did Dr. James W. Roat go to medical school?
Dr. Roat graduated from George Washington University School of Medicine in 1977.
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What drugs does Dr. James W. Roat prescribe most?
In 2024 Medicare Part D data, Dr. Roat's most prescribed drugs by claims were Pantoprazole Sodium, Metoclopramide HCl and Peg-3350 And Electrolytes.
Has Dr. James W. Roat received payments from drug or device companies?
CMS Open Payments shows $386 in general payments to Dr. Roat from 5 companies from 2016 to 2024. The largest total came from Abbvie Inc.
How long has Dr. James W. Roat been practicing?
Dr. Roat graduated from medical school in 1977, 49 years ago.
Does Dr. James W. Roat do research?
Dmand AI links 3 publications to Dr. Roat, published from 2013 to 2014.
Who does Dr. James W. Roat publish with?
Dr. Roat's most frequent co-authors are Christine Pocha, MD (2 shared papers), James William Roat, MD (2 shared papers) and Meagan Elizabeth Gray, MD (1 shared paper).
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