Liver CirrhosisNon-alcoholic Fatty Liver DiseaseVenous Thromboembolism
Dr. William J. Tremaine, MD
NPI1831176841
- Medicare services, 2022
- 303
- Part D claims, 2023
- 256
- Publications
- 182
- Hospital affiliations
- 1
- Industry payments
- $12,121
- Practice address
- 2450 Riverside Avenue, Minneapolis, MN 55454
- Practice phone
- Call (612) 624-1765
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Tremaine's professional email, personal email and mobile number
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Dr. William J. Tremaine is a gastroenterologist in Minneapolis, Minnesota
Dr. Tremaine practices at M Health Fairview University of Minnesota Medical Center in Minneapolis, Minnesota, part of M Health Fairview.
Dr. Tremaine's NPI, 1831176841, was assigned on December 30, 2005. Dr. Tremaine graduated from University of Mississippi School of Medicine in 1976. Dr. Tremaine holds Minnesota license 23670.
NPI and contact details
- NPI
- 1831176841NPI Registry (opens in a new tab)
- NPI enumeration date
- December 30, 2005
- NPI status
- Active
- Practice phone
- (612) 624-1765
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 76
- Medical school graduation
- 1976
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. William J. Tremaine practices at M Health Fairview University of Minnesota Medical Center in Minneapolis, Minnesota
Dr. Tremaine's primary practice is M Health Fairview University of Minnesota Medical Center, at 2450 Riverside Avenue, Minneapolis, MN 55454 in Hennepin County. The practice phone is (612) 624-1765.
- M Health Fairview University of Minnesota Medical Center2450 Riverside Avenue, Minneapolis, MN 55454 · Hennepin CountyPhone(612) 624-1765
Source: Dmand AI Affiliation Data
Dr. William J. Tremaine is affiliated with 3 sites of care and 1 medical group
Dr. Tremaine's primary practice is M Health Fairview University of Minnesota Medical Center in Minneapolis, Minnesota, part of M Health Fairview. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Tremaine to 1 more dialysis center and 1 hospice, 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. William J. Tremaine's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tremaine practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| M Health Fairview University of Minnesota Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dmand AI maps EHR vendors, IT decision makers and buying committees across M Health Fairview and 6.2K+ hospitals, with verified contacts in the same login.
Dr. William J. Tremaine is one of 366 gastroenterologists in Minnesota
Gastroenterology is Dr. Tremaine's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Tremaine is licensed in Minnesota.
Specialties and state licenses
- Gastroenterology, MinnesotaPrimary
Clinical focus
Dmand AI lists colonoscopy among the conditions Dr. Tremaine treats.
Gastroenterologists near Dr. Tremaine
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
366gastroenterologists in Minnesota88gastroenterologists in Minneapolis18gastroenterologists at M Health Fairview University of Minnesota Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William J. Tremaine billed Medicare for 303 services in 2022
CMS data shows 303 Medicare services from Dr. Tremaine across 10 procedure codes in 2022. Medicare paid $19,983 for them.
Medicare services, 2022303
Paid by Medicare$19,983
Procedure codes10
Dr. Tremaine's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 2712022: 17934%
- Other services
- 2021: 632022: 8027%
- Surgery
- 2021: 712022: 4438%
Where Dr. Tremaine's Medicare services took place, 2022
- In an office17959%
- In a facility12441%
Dr. Tremaine compared with the Minnesota median for gastroenterologists, 2022
- Dr. Tremaine
- Minnesota median
- Medicare services
- 303vs 27411% above
- Part D claims
- 256vs 14280% above
Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Tremaine's most billed Medicare procedure codes, 2022
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. Tremaine?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tremaine and other gastroenterologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William J. Tremaine's patients have a median age of 57
Across all payers, Dmand AI patient panel data puts Dr. Tremaine's median patient age at 57, with 44% women.
Dr. Tremaine's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women44%
- Men56%
Source: Dmand AI Patient Panel Data
Dr. William J. Tremaine wrote 256 Medicare Part D claims in 2023
In 2023, Dr. Tremaine wrote 256 Medicare Part D claims. They cover 14 drugs, with $1,345,777 in total drug cost. In 2022, CMS named 1,124 claims across 49 drugs.
Part D claims, 2023256
Drugs named by CMS14
Total drug cost$1.3M
Dr. Tremaine's most prescribed drugs by claims, 2023
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, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 1,1242023: 25677%
Drugs named by CMS: 14 in 2023, 49 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. William J. Tremaine has 182 publications on record
Dmand AI links 182 papers to Dr. Tremaine, published from 2006 to 2024. 2015 was the busiest year, with 8. The most frequent topics are Crohn Disease, Colitis, Ulcerative and Inflammatory Bowel Diseases. Dr. Tremaine has published most often in Inflamm Bowel Dis. Dr. Tremaine's most frequent co-authors are Edward Vincent Loftus, MD, William J. Sandborn, MD and William A. Faubion, MD.
Papers182
Years published2006 to 2024
Dr. Tremaine's papers by year, 2015 to 2024
Topics Dr. Tremaine writes about most
- Crohn Disease
- Colitis, Ulcerative
- Inflammatory Bowel Diseases
- Minnesota
- Immunosuppressive Agents
- Adrenal Cortex Hormones
- Azathioprine
- Administration, Oral
Dr. Tremaine's most frequent co-authors
- Edward Vincent Loftus, MD96 shared papers
- William J. Sandborn, MD88 shared papers
- William A. Faubion, MD22 shared papers
Recent publications by Dr. Tremaine
J Clin Gastroenterol
Adrenal Cortex HormonesCrohn DiseaseObesity
Eur J Gastroenterol Hepatol
Hepatitis, AlcoholicLiver CirrhosisSex Characteristics
Clin Gastroenterol Hepatol
Celiac DiseaseHepatitis BHepatitis B Antibodies
See who Dr. Tremaine researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tremaine 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. William J. Tremaine received $12,121 in industry payments from 2017 to 2025
CMS Open Payments shows 18 general payments to Dr. Tremaine from 2 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 78% of the total. Merck Sharp & Dohme Corporation paid the most, $9,425.
General payments to Dr. Tremaine by program year, 2017 to 2025
General payments to Dr. Tremaine by kind, 2017 to 2025
$12.1Kin total
- Consulting fees$9,42578%
- Honoraria$2,00016%
- Travel and lodging$6966%
Companies that paid Dr. Tremaine the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William J. Tremaine has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. Tremaine, most recently America's Top Doctors in 2014.
Awards and honors for Dr. Tremaine
- 2014
- America's Top Doctors
- 2010
- AGA Fellow
- 2008
- Women's Health
- Undated
- ACG Fellow
Source: Dmand AI Professional Profile Data
Dr. William J. Tremaine graduated from University of Mississippi School of Medicine
Dr. Tremaine graduated from University of Mississippi School of Medicine in 1976.
- Medical school
Source: Dmand AI Professional Profile Data
Dr. William J. Tremaine accepts plans from 11 insurance carriers
Dr. Tremaine is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- Medica
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Humana
- +3 more carriersWith a free account
Plan types Dr. Tremaine accepts, by number of carriers
- Medicare9
- PPO9
- HMO5
- POS5
- EPO2
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. William J. Tremaine'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) |
| 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. William J. Tremaine
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. William J. Tremaine's NPI number?
Dr. William J. Tremaine's NPI number is 1831176841. It was assigned on December 30, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. William J. Tremaine?
Dr. William J. Tremaine is a gastroenterologist in Minneapolis, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. William J. Tremaine practice?
Dr. Tremaine practices at 2450 Riverside Avenue, Minneapolis, MN 55454. Dr. Tremaine's primary practice is M Health Fairview University of Minnesota Medical Center in Minneapolis, Minnesota, part of M Health Fairview. Dmand AI also links Dr. Tremaine to 1 dialysis center and 1 hospice.
What is Dr. William J. Tremaine's office phone number?
The practice phone on file for Dr. Tremaine is (612) 624-1765.
What is Dr. William J. Tremaine's medical license number?
Dr. Tremaine holds Minnesota license 23670.
Which hospitals is Dr. William J. Tremaine affiliated with?
Dr. Tremaine practices at M Health Fairview University of Minnesota Medical Center in Minneapolis, Minnesota.
What medical group is Dr. William J. Tremaine part of?
Dr. Tremaine is linked to Mayo Clinic.
Does Dr. William J. Tremaine accept Medicare?
Yes. CMS data shows Dr. Tremaine billed Medicare for 303 services in 2022.
What services does Dr. William J. Tremaine bill to Medicare?
In 2022, Dr. Tremaine's most billed Medicare services were office visit, established patient (99213), medicare service (G0500) and surgery: digestive system (45385).
Where did Dr. William J. Tremaine go to medical school?
Dr. Tremaine graduated from University of Mississippi School of Medicine in 1976.
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What drugs does Dr. William J. Tremaine prescribe most?
In 2023 Medicare Part D data, Dr. Tremaine's most prescribed drugs by claims were Stelara, Balsalazide Disodium and Humira Pen.
Has Dr. William J. Tremaine received payments from drug or device companies?
CMS Open Payments shows $12,121 in general payments to Dr. Tremaine from 2 companies from 2017 to 2025. The largest total came from Merck Sharp & Dohme Corporation.
How long has Dr. William J. Tremaine been practicing?
Dr. Tremaine graduated from medical school in 1976, 50 years ago.
Does Dr. William J. Tremaine do research?
Dmand AI links 182 publications to Dr. Tremaine, published from 2006 to 2024.
Who does Dr. William J. Tremaine publish with?
Dr. Tremaine's most frequent co-authors are Edward Vincent Loftus, MD (96 shared papers), William J. Sandborn, MD (88 shared papers) and William A. Faubion, MD (22 shared papers).
What insurance does Dr. William J. Tremaine accept?
Dr. Tremaine is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.
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