Pancreatic DuctsPancreatic FistulaPancreatitis, Acute Necrotizing
Dr. Richard A. Kozarek, MD
NPI1124042379
- Medicare services, 2020
- 336
- Part D claims, 2021
- 66
- Publications
- 135
- Clinical trials
- 2
- Industry payments
- $2,284
- Practice address
- 1100 9th Ave, Seattle, WA 98101-2756
- Practice phone
- Call (206) 223-6600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Seattle Extracorporeal
Multi-specialty group site · Seattle, Washington
Find Dr. Kozarek's professional email, personal email and mobile number
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Dr. Richard A. Kozarek is a gastroenterologist in Seattle, Washington
Dr. Kozarek practices at Seattle Extracorporeal in Seattle, Washington.
Dr. Kozarek's NPI, 1124042379, was assigned on July 27, 2006. Dr. Kozarek holds Washington license MD00020993.
NPI and contact details
- NPI
- 1124042379NPI Registry (opens in a new tab)
- NPI enumeration date
- July 27, 2006
- NPI status
- Active
- Practice phone
- (206) 223-6600
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard A. Kozarek practices at Seattle Extracorporeal in Seattle, Washington
Dr. Kozarek's primary practice is Seattle Extracorporeal, at 1100 9th Ave, Seattle, WA 98101-2756. The practice phone is (206) 223-6600.
- Seattle Extracorporeal1100 9th Ave, Seattle, WA 98101-2756Phone(206) 223-6600
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Richard A. Kozarek is affiliated with 1 site of care and 1 medical group
Dr. Kozarek's primary practice is Seattle Extracorporeal in Seattle, Washington. Dmand AI also links Dr. Kozarek to 1 medical group, named with a free account.
Seattle ExtracorporealPrimary
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Richard A. Kozarek's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kozarek practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Seattle Extracorporeal | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Richard A. Kozarek is one of 434 gastroenterologists in Washington
Gastroenterology is Dr. Kozarek's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Kozarek is licensed in Washington.
Specialties and state licenses
- Gastroenterology, WashingtonPrimary
Gastroenterologists near Dr. Kozarek
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. Richard A. Kozarek billed Medicare for 336 services in 2020
CMS data shows 336 Medicare services from Dr. Kozarek across 11 procedure codes in 2020. Medicare paid $35,203 for them.
Medicare services, 2020336
Paid by Medicare$35,203
Procedure codes11
Dr. Kozarek's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Surgery
- 2019: 3082020: 19437%
- Office and hospital visits
- 2019: 2112020: 14233%
- Imaging
- 2019: 212020: 0100%
Where Dr. Kozarek's Medicare services took place, 2020
- In an office288%
- In a facility30892%
Dr. Kozarek compared with the Washington median for gastroenterologists, 2020
- Dr. Kozarek
- Washington median
- Medicare services
- 336vs 3566% below
- Part D claims
- 66vs 27276% below
Medians across 433 gastroenterologists in Washington with Dmand AI profiles that report each measure.
Dr. Kozarek's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Kozarek?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kozarek and other gastroenterologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Richard A. Kozarek's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Kozarek's median patient age at 65, with 50% women.
Dr. Kozarek's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. Richard A. Kozarek wrote 66 Medicare Part D claims in 2021
In 2021, Dr. Kozarek wrote 66 Medicare Part D claims. They cover 2 drugs, with $89,432 in total drug cost. In 2020, CMS named 435 claims across 18 drugs.
Part D claims, 202166
Drugs named by CMS2
Total drug cost$89,432
Dr. Kozarek's most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 4352021: 6685%
Drugs named by CMS: 2 in 2021, 18 in 2020.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Richard A. Kozarek has 135 publications on record
Dmand AI links 135 papers to Dr. Kozarek, published from 2010 to 2025. 2019 was the busiest year, with 11. The most frequent topics are Cholangiopancreatography, Endoscopic Retrograde, Stents and Drainage. Dr. Kozarek has published most often in Gastrointest Endosc. Dr. Kozarek's most frequent co-authors are Shayan Irani, MD, Michael Gluck, MD and Otto S. Lin, MD.
Papers135
Years published2010 to 2025
Dr. Kozarek's papers by year, 2016 to 2025
Topics Dr. Kozarek writes about most
- Cholangiopancreatography, Endoscopic Retrograde
- Stents
- Drainage
- Colonoscopy
- Endosonography
- Pancreatitis
- Postoperative Complications
- Pancreatic Ducts
Dr. Kozarek's most frequent co-authors
Recent publications by Dr. Kozarek
Curr Opin Gastroenterol
Carcinoma, Pancreatic DuctalPancreatic NeoplasmsPancreatitis
See who Dr. Kozarek researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Kozarek 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. Richard A. Kozarek has worked on 2 clinical trials
Dmand AI links Dr. Kozarek to 2 clinical trials. Conditions studied include Cholestasis, Pancreatic Neoplasms and Bile Duct Diseases. Boston Scientific Corporation sponsors the most, 2.
Conditions in Dr. Kozarek's trials
- Cholestasis
- Pancreatic Neoplasms
- Bile Duct Diseases
- Pancreatic Diseases
Investigators on the most trials with Dr. Kozarek
Recent clinical trials with Dr. Kozarek
CholestasisBile Duct DiseasesSpyGlass™ Discover Digital System
Pancreatic NeoplasmsPancreatic DiseasesWallFlex™ Biliary RX Fully Covered/Uncovered Stent System
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Richard A. Kozarek received $2,284 in industry payments from 2016 to 2023
CMS Open Payments shows 13 general payments to Dr. Kozarek from 3 drug and device companies from 2016 to 2023. Education speaker fees make up the largest share, 66% of the total. Cook Medical LLC paid the most, $1,865.
General payments to Dr. Kozarek by program year, 2016 to 2023
General payments to Dr. Kozarek by kind, 2016 to 2023
$2.3Kin total
- Education speaker fees$1,50066%
- Food and beverage$78434%
Companies that paid Dr. Kozarek the most, 2016 to 2023
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Richard A. Kozarek'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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) |
| 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. Richard A. Kozarek
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. Richard A. Kozarek's NPI number?
Dr. Richard A. Kozarek's NPI number is 1124042379. It was assigned on July 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Richard A. Kozarek?
Dr. Richard A. Kozarek is a gastroenterologist in Seattle, Washington. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Richard A. Kozarek practice?
Dr. Kozarek practices at 1100 9th Ave, Seattle, WA 98101-2756. Dr. Kozarek's primary practice is Seattle Extracorporeal in Seattle, Washington. Dmand AI also links Dr. Kozarek to 1 medical group.
What is Dr. Richard A. Kozarek's office phone number?
The practice phone on file for Dr. Kozarek is (206) 223-6600.
What is Dr. Richard A. Kozarek's medical license number?
Dr. Kozarek holds Washington license MD00020993.
Does Dr. Richard A. Kozarek accept Medicare?
Yes. CMS data shows Dr. Kozarek billed Medicare for 336 services in 2020.
What services does Dr. Richard A. Kozarek bill to Medicare?
In 2020, Dr. Kozarek's most billed Medicare services were office visit, established patient (99214), surgery: digestive system (45380) and surgery: digestive system (43264).
What drugs does Dr. Richard A. Kozarek prescribe most?
In 2021 Medicare Part D data, Dr. Kozarek's most prescribed drugs by claims were Omeprazole and Creon.
Has Dr. Richard A. Kozarek received payments from drug or device companies?
CMS Open Payments shows $2,284 in general payments to Dr. Kozarek from 3 companies from 2016 to 2023. The largest total came from Cook Medical LLC.
How long has Dr. Richard A. Kozarek been practicing?
Dr. Kozarek's NPI was assigned in 2006.
Does Dr. Richard A. Kozarek do research?
Dmand AI links 135 publications to Dr. Kozarek, published from 2010 to 2025. Dr. Kozarek has worked on 2 clinical trials.
Who does Dr. Richard A. Kozarek publish with?
Dr. Kozarek's most frequent co-authors are Shayan Irani, MD (50 shared papers), Michael Gluck, MD (38 shared papers) and Otto S. Lin, MD (21 shared papers).
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