Dr. Steven Ryan Demeester, MD
- Medicare services, 2023
- 219
- Part D claims, 2024
- 30
- Publications
- 63
- Clinical trials
- 1
- Hospital affiliations
- 2
- Practice address
- 19300 Sw 65th Avenue, Tualatin, OR 97062
- Practice phone
- Call (503) 692-1212
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Demeester's professional email, personal email and mobile number
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Dr. Steven Ryan Demeester is a cardiothoracic surgeon in Tualatin, Oregon
Dr. Demeester practices at Legacy Meridian Park Medical Center in Tualatin, Oregon, part of Legacy Health.
Dr. Demeester's NPI, 1609807973, was assigned on July 5, 2006. Dr. Demeester graduated from Loyola University of Chicago, Stritch School of Medicine in 1987. Dr. Demeester holds Oregon license MD174787.
- NPI
- 1609807973NPI Registry (opens in a new tab)
- NPI enumeration date
- July 5, 2006
- NPI status
- Active
- Practice phone
- (503) 692-1212
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 65
- Medical school graduation
- 1987
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Steven Ryan Demeester practices at Legacy Meridian Park Medical Center in Tualatin, Oregon
Dr. Demeester's primary practice is Legacy Meridian Park Medical Center, at 19300 Sw 65th Avenue, Tualatin, OR 97062 in Washington County. The practice phone is (503) 692-1212.
- Legacy Meridian Park Medical Center19300 Sw 65th Avenue, Tualatin, OR 97062 · Washington CountyPhone(503) 692-1212
Source: Dmand AI Affiliation Data
Dr. Steven Ryan Demeester is affiliated with 4 sites of care and 1 medical group
Dr. Demeester's primary practice is Legacy Meridian Park Medical Center in Tualatin, Oregon, part of Legacy Health. Dr. Demeester is also affiliated with Providence Portland Medical Center. The medical group on file is The Oregon Clinic. Dmand AI also links Dr. Demeester to 1 more clinical lab and 1 therapy and rehab clinic, 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. Steven Ryan Demeester's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Demeester practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Legacy Meridian Park Medical Center | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Legacy Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Steven Ryan Demeester is one of 63 cardiothoracic surgeons in Oregon
Thoracic surgery (cardiothoracic vascular surgery) is Dr. Demeester's primary specialty in the NPI Registry, under taxonomy code 208G00000X. Dmand AI has Dr. Demeester's licenses on file in 2 states: Oregon and California.
Specialties and state licenses
- Thoracic surgery (cardiothoracic vascular surgery), OregonPrimary
- Surgery, California
Cardiothoracic surgeons near Dr. Demeester
Counts of cardiothoracic surgeons 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. Steven Ryan Demeester billed Medicare for 219 services in 2023
CMS data shows 219 Medicare services from Dr. Demeester across 9 procedure codes in 2023. Medicare paid $35,756 for them.
Dr. Demeester's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Office and hospital visits
- 2022: 1952023: 9949%
- Surgery
- 2022: 1302023: 9626%
- Tests and treatments
- 2022: 1052023: 2477%
Where Dr. Demeester's Medicare services took place, 2023
- In an office12356%
- In a facility9644%
Dr. Demeester compared with the Oregon median for cardiothoracic surgeons, 2023
- Dr. Demeester
- Oregon median
- Medicare services
- 219vs 1032.1 times
- Part D claims
- 14vs 157% below
Medians across 51 cardiothoracic surgeons in Oregon with Dmand AI profiles that report each measure.
Dr. Demeester's most billed Medicare procedure codes, 2023
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. Demeester?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Demeester and other cardiothoracic surgeons in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven Ryan Demeester's patients have a median age of 78
Across all payers, Dmand AI patient panel data puts Dr. Demeester's median patient age at 78, with 20% women.
Dr. Demeester's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 78
Patient panel by sex, all payers
- Women20%
- Men80%
Source: Dmand AI Patient Panel Data
Dr. Steven Ryan Demeester wrote 30 Medicare Part D claims in 2024
In 2024, Dr. Demeester wrote 30 Medicare Part D claims for 16 patients. 80% of them were for generic drugs. CMS names the drug for 14 of them, across 1 drug with 11 or more claims each, at $194 in total drug cost. In 2023, CMS named 167 claims across 3 drugs.
Dr. Demeester's Part D claims by kind of drug, 2024
- Generic24 claims80%
- Brand-name and other6 claims20%
Dr. Demeester'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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1672024: 1492%
Drugs named by CMS: 1 in 2024, 3 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
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Dr. Steven Ryan Demeester has 63 publications on record
Dmand AI links 63 papers to Dr. Demeester, published from 2010 to 2024. 2015 was the busiest year, with 6. The most frequent topics are Esophageal Neoplasms, Adenocarcinoma and Esophagectomy. Dr. Demeester has published most often in Ann Surg. Dr. Demeester's most frequent co-authors are Stephanie Worrell, MD, Kevin Michael Reavis, MD and Daniel Sangwon Oh, MD.
Dr. Demeester's papers by year, 2015 to 2024
Topics Dr. Demeester writes about most
- Esophageal Neoplasms
- Adenocarcinoma
- Esophagectomy
- Gastroesophageal Reflux
- Hernia, Hiatal
- Barrett Esophagus
- Laparoscopy
- Fundoplication
Dr. Demeester's most frequent co-authors
- Stephanie Worrell, MD15 shared papers
- Kevin Michael Reavis, MD14 shared papers
- Daniel Sangwon Oh, MD13 shared papers
Recent publications by Dr. Demeester
J Gastrointest Surg
See who Dr. Demeester researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Demeester works with, so you can find a warm path to the right cardiothoracic surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Steven Ryan Demeester has worked on 1 clinical trial
Dmand AI links Dr. Demeester to 1 clinical trial. Conditions studied include Gastroesophageal Reflux and Esophageal Motility Disorders.
Conditions in Dr. Demeester's trials
- Gastroesophageal Reflux
- Esophageal Motility Disorders
Investigators on the most trials with Dr. Demeester
- Marc Bessler, MD1 shared trial
- Christopher P. Brandt, MD1 shared trial
- Ross M. Bremner, MD1 shared trial
Recent clinical trials with Dr. Demeester
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Steven Ryan Demeester received $995,589 in industry payments from 2016 to 2025
CMS Open Payments shows 894 general payments to Dr. Demeester from 37 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 48% of the total. Davol Inc. paid the most, $942,130.
General payments to Dr. Demeester by program year, 2016 to 2025
General payments to Dr. Demeester by kind, 2016 to 2025
- Honoraria$481,90848%
- Consulting fees$295,89530%
- Travel and lodging$123,94912%
- Speaker and faculty fees$57,0006%
- Other$36,8374%
Companies that paid Dr. Demeester 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. Steven Ryan Demeester graduated from Loyola University of Chicago, Stritch School of Medicine
Dr. Demeester graduated from Loyola University of Chicago, Stritch School of Medicine in 1987.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Steven Ryan Demeester'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 Data |
| 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) |
| 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. Steven Ryan Demeester
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. Steven Ryan Demeester's NPI number?
Dr. Steven Ryan Demeester's NPI number is 1609807973. It was assigned on July 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven Ryan Demeester?
Dr. Steven Ryan Demeester is a cardiothoracic surgeon in Tualatin, Oregon. The primary specialty in the NPI Registry is Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (taxonomy code 208G00000X).
Where does Dr. Steven Ryan Demeester practice?
Dr. Demeester practices at 19300 Sw 65th Avenue, Tualatin, OR 97062. Dr. Demeester's primary practice is Legacy Meridian Park Medical Center in Tualatin, Oregon, part of Legacy Health. Dmand AI also links Dr. Demeester to 1 clinical lab and 1 therapy and rehab clinic.
What is Dr. Steven Ryan Demeester's office phone number?
The practice phone on file for Dr. Demeester is (503) 692-1212.
What is Dr. Steven Ryan Demeester's medical license number?
Dr. Demeester holds Oregon license MD174787, one of the licenses on file in 2 states.
Which states has Dr. Steven Ryan Demeester been licensed in?
Dmand AI has state licenses on file for Dr. Demeester in Oregon and California.
Which hospitals is Dr. Steven Ryan Demeester affiliated with?
Dr. Demeester practices at Legacy Meridian Park Medical Center in Tualatin, Oregon. Dr. Demeester is also affiliated with Providence Portland Medical Center.
What medical group is Dr. Steven Ryan Demeester part of?
Dr. Demeester is linked to The Oregon Clinic.
Does Dr. Steven Ryan Demeester accept Medicare?
Yes. CMS data shows Dr. Demeester billed Medicare for 219 services in 2023.
What services does Dr. Steven Ryan Demeester bill to Medicare?
In 2023, Dr. Demeester's most billed Medicare services were surgery: digestive system (43239), office visit, established patient (99215) and office visit, established patient (99213).
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Where did Dr. Steven Ryan Demeester go to medical school?
Dr. Demeester graduated from Loyola University of Chicago, Stritch School of Medicine in 1987.
What drugs does Dr. Steven Ryan Demeester prescribe most?
In 2024 Medicare Part D data, Dr. Demeester's most prescribed drugs by claims were Omeprazole.
Has Dr. Steven Ryan Demeester received payments from drug or device companies?
CMS Open Payments shows $995,589 in general payments to Dr. Demeester from 37 companies from 2016 to 2025. The largest total came from Davol Inc.
How long has Dr. Steven Ryan Demeester been practicing?
Dr. Demeester graduated from medical school in 1987, 39 years ago.
Does Dr. Steven Ryan Demeester do research?
Dmand AI links 63 publications to Dr. Demeester, published from 2010 to 2024. Dr. Demeester has worked on 1 clinical trial.
Who does Dr. Steven Ryan Demeester publish with?
Dr. Demeester's most frequent co-authors are Stephanie Worrell, MD (15 shared papers), Kevin Michael Reavis, MD (14 shared papers) and Daniel Sangwon Oh, MD (13 shared papers).
Selling to thoracic surgery (cardiothoracic vascular surgery) practices?
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