Dr. Mark Stephen Schiele, MD
- Medicare services, 2023
- 372
- Part D claims, 2024
- 89
- Industry payments
- $22
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 19250 Sw 90th Ave, Tualatin, OR 97062
- Practice phone
- Call (503) 692-3750
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gastroenterology South - Tualatin
Tualatin, Oregon
Find Dr. Schiele's professional email, personal email and mobile number
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Dr. Mark Stephen Schiele is a gastroenterologist in Tualatin, Oregon
Dr. Schiele practices at Gastroenterology South - Tualatin in Tualatin, Oregon.
Dr. Schiele's NPI, 1356337943, was assigned on September 20, 2005. Dr. Schiele graduated from University of California, Davis School of Medicine in 1989. Dr. Schiele holds Oregon license MD17603.
- NPI
- 1356337943NPI Registry (opens in a new tab)
- NPI enumeration date
- September 20, 2005
- NPI status
- Active
- Practice phone
- (503) 692-3750
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mark Stephen Schiele practices at Gastroenterology South - Tualatin in Tualatin, Oregon
Dr. Schiele's primary practice is Gastroenterology South - Tualatin, at 19250 Sw 90th Ave, Tualatin, OR 97062 in Washington County. The practice phone is (503) 692-3750.
- Gastroenterology South - Tualatin19250 Sw 90th Ave, Tualatin, OR 97062 · Washington CountyPhone(503) 692-3750
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Stephen Schiele is affiliated with 2 sites of care and 1 medical group
Dr. Schiele's primary practice is Gastroenterology South - Tualatin in Tualatin, Oregon. The medical group on file is The Oregon Clinic. Dmand AI also links Dr. Schiele to 1 more ambulatory surgery center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Stephen Schiele's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Schiele practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gastroenterology South - Tualatin | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Stephen Schiele is one of 226 gastroenterologists in Oregon
Gastroenterology is Dr. Schiele's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Schiele is licensed in Oregon.
Specialties and state licenses
- Gastroenterology, OregonPrimary
Gastroenterologists near Dr. Schiele
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. Mark Stephen Schiele billed Medicare for 372 services in 2023
CMS data shows 372 Medicare services from Dr. Schiele across 8 procedure codes in 2023. Medicare paid $34,192 for them.
Dr. Schiele's Medicare services by type, 2022 to 2023
- 2022
- 2023
- Lab and pathology
- 2022: 1112023: 13421%
- Office and hospital visits
- 2022: 1372023: 1305%
- Surgery
- 2022: 922023: 875%
- Other services
- 2022: 392023: 2146%
Where Dr. Schiele's Medicare services took place, 2023
- In an office26471%
- In a facility10829%
Dr. Schiele compared with the Oregon median for gastroenterologists, 2023
- Dr. Schiele
- Oregon median
- Medicare services
- 372vs 27336% above
- Part D claims
- 44vs 34087% below
Medians across 224 gastroenterologists in Oregon with Dmand AI profiles that report each measure.
Dr. Schiele'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Schiele and other gastroenterologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Stephen Schiele's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Schiele's median patient age at 66, with 45% women.
Dr. Schiele's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women45%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Mark Stephen Schiele wrote 89 Medicare Part D claims in 2024
In 2024, Dr. Schiele wrote 89 Medicare Part D claims for 38 patients. 80% of them were for generic drugs. CMS names the drug for 44 of them, across 3 drugs with 11 or more claims each, at $364,711 in total drug cost. In 2023, CMS named 393 claims across 14 drugs.
Dr. Schiele's Part D claims by kind of drug, 2024
- Generic71 claims80%
- Brand-name18 claims20%
Dr. Schiele'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: 3932024: 4489%
Drugs named by CMS: 3 in 2024, 14 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. Mark Stephen Schiele received $22 in industry payments in 2016
CMS Open Payments shows 2 general payments to Dr. Schiele from 2 drug and device companies in 2016. Food and beverage make up the largest share, 53% of the total. Olympus America Inc. paid the most, $12.
General payments to Dr. Schiele by kind, 2016 to 2016
- Food and beverage$1253%
- Education$1047%
Companies that paid Dr. Schiele the most, 2016 to 2016
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Stephen Schiele graduated from University of California, Davis School of Medicine
Dr. Schiele graduated from University of California, Davis School of Medicine in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Stephen Schiele'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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) |
| 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. Mark Stephen Schiele
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What is Dr. Mark Stephen Schiele's NPI number?
Dr. Mark Stephen Schiele's NPI number is 1356337943. It was assigned on September 20, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Stephen Schiele?
Dr. Mark Stephen Schiele is a gastroenterologist in Tualatin, Oregon. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mark Stephen Schiele practice?
Dr. Schiele practices at 19250 Sw 90th Ave, Tualatin, OR 97062. Dr. Schiele's primary practice is Gastroenterology South - Tualatin in Tualatin, Oregon. Dmand AI also links Dr. Schiele to 1 ambulatory surgery center.
What is Dr. Mark Stephen Schiele's office phone number?
The practice phone on file for Dr. Schiele is (503) 692-3750.
What is Dr. Mark Stephen Schiele's medical license number?
Dr. Schiele holds Oregon license MD17603.
What medical group is Dr. Mark Stephen Schiele part of?
Dr. Schiele is linked to The Oregon Clinic.
Does Dr. Mark Stephen Schiele accept Medicare?
Yes. CMS data shows Dr. Schiele billed Medicare for 372 services in 2023.
What services does Dr. Mark Stephen Schiele bill to Medicare?
In 2023, Dr. Schiele's most billed Medicare services were lab and pathology test (88305), surgery: digestive system (45385) and office visit, established patient (99213).
Where did Dr. Mark Stephen Schiele go to medical school?
Dr. Schiele graduated from University of California, Davis School of Medicine in 1989.
What drugs does Dr. Mark Stephen Schiele prescribe most?
In 2024 Medicare Part D data, Dr. Schiele's most prescribed drugs by claims were Pantoprazole Sodium, Stelara and Omeprazole.
Has Dr. Mark Stephen Schiele received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to Dr. Schiele from 2 companies from 2016 to 2016. The largest total came from Olympus America Inc.
How long has Dr. Mark Stephen Schiele been practicing?
Dr. Schiele graduated from medical school in 1989, 37 years ago.
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