Dr. Mark Edward Brewster, MD
- Medicare services, 2024
- 258
- Medicare patients, 2024
- 190
- Part D claims, 2024
- 55
- Publications
- 1
- MIPS score, 2024
- 83
- Practice address
- 310 N 10th St, Bismarck, ND 58501
- Practice phone
- Call (701) 877-2020
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Infinity Medical Management
Bismarck, North Dakota
Find Dr. Brewster's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mark Edward Brewster is a gastroenterologist in Bismarck, North Dakota
Dr. Brewster practices at Infinity Medical Management in Bismarck, North Dakota.
Dr. Brewster's NPI, 1275773046, was assigned on March 5, 2009. Dr. Brewster graduated from Wayne State University School of Medicine in 2007. Dr. Brewster holds North Dakota license 20698.
- NPI
- 1275773046NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7315126091
- NPI enumeration date
- March 5, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (701) 877-2020
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Edward Brewster practices at Infinity Medical Management in Bismarck, North Dakota
Dr. Brewster's primary practice is Infinity Medical Management, at 310 N 10th St, Bismarck, ND 58501 in Burleigh County. The practice phone is (701) 877-2020.
- Infinity Medical Management310 N 10th St, Bismarck, ND 58501 · Burleigh CountyPhone(701) 877-2020
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark Edward Brewster is affiliated with 7 sites of care and 2 medical groups
Dr. Brewster's primary practice is Infinity Medical Management in Bismarck, North Dakota. Dr. Brewster is also affiliated with Sanford Bismarck Medical Center. The medical group on file is Brightside Specialty Clinics. Dmand AI also links Dr. Brewster to 4 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark Edward Brewster's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Brewster practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Infinity Medical Management | Available with a free account |
| +6 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark Edward Brewster is one of 26 gastroenterologists in North Dakota
Gastroenterology is Dr. Brewster's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dmand AI has Dr. Brewster's licenses on file in 2 states: North Dakota and Michigan.
Specialties and state licenses
- Gastroenterology, North DakotaPrimary
- Internal medicine, Michigan
Gastroenterologists near Dr. Brewster
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 Edward Brewster billed Medicare for 258 services in 2024
CMS data shows 258 Medicare services from Dr. Brewster across 2 procedure codes in 2024, all of them office visits, for 190 Medicare patients. Medicare paid $27,365 for them. Every service was in an office.
Dr. Brewster compared with the North Dakota median for gastroenterologists, 2024
- Dr. Brewster
- North Dakota median
- Medicare services
- 258vs 42639% below
- Medicare patients
- 190vs 36748% below
- Part D claims
- 198vs 24018% below
Medians across 28 gastroenterologists in North Dakota with Dmand AI profiles that report each measure.
Dr. Brewster'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.
Need commercial claims for Dr. Brewster?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Brewster and other gastroenterologists in North Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Edward Brewster treated 190 Medicare patients in 2024, average age 73
CMS counts 190 Medicare patients who saw Dr. Brewster in 2024. The largest group is 65 to 74, with 96 patients. 73% of them have high cholesterol, and 71% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Brewster's median patient age at 63, with 63% women.
Dr. Brewster's Medicare patients by age, 2024
Dr. Brewster's Medicare patients by sex, 2024
- Women11862%
- Men7238%
Chronic conditions among Dr. Brewster's Medicare patients, 2024
- High cholesterol73%
- High blood pressure71%
- Arthritis44%
- Anxiety33%
- Mood disorders33%
- Depression31%
- Ischemic heart disease29%
- Diabetes26%
Share of Medicare patients with each condition. A patient can have several.
Dr. Brewster's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 63
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark Edward Brewster wrote 55 Medicare Part D claims in 2024
In 2024, Dr. Brewster wrote 55 Medicare Part D claims for 35 patients. 96% of them were for generic drugs. They cover 5 drugs, with $2,524 in total drug cost. In 2016, CMS named 355 claims across 7 drugs.
Dr. Brewster's Part D claims by kind of drug, 2024
- Generic53 claims96%
- Brand-name and other2 claims4%
Dr. Brewster's most prescribed drugs by claims, 2017
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, 2016 to 2017
- 2016
- 2017
- Claims for drugs CMS names
- 2016: 3552017: 19844%
Drugs named by CMS: 5 in 2017, 7 in 2016.
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. Mark Edward Brewster scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Brewster for performance year 2024, reported as part of a group. Dr. Brewster accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Brewster as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Brewster's MIPS scores, performance year 2024
- 83of 100Final score
- 66.9of 100Quality
- 95of 100Promoting Interoperability
- 40of 100Improvement Activities
- 81of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Mark Edward Brewster has 1 publication on record
Dmand AI links 1 paper to Dr. Brewster in 2010. Dr. Brewster's most frequent co-authors are Nicholas Carl Boetticher, MD and Constance Marie Mobley, MD, PhD.
Dr. Brewster's most frequent co-authors
Recent publications by Dr. Brewster
See who Dr. Brewster researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Brewster 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. Mark Edward Brewster received $3,710 in industry payments from 2016 to 2025
CMS Open Payments shows 177 general payments to Dr. Brewster from 26 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 93% of the total. Abbvie Inc. paid the most, $888.
General payments to Dr. Brewster by program year, 2016 to 2025
General payments to Dr. Brewster by kind, 2016 to 2025
- Food and beverage$3,45293%
- Education$2587%
Companies that paid Dr. Brewster 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. Mark Edward Brewster graduated from Wayne State University School of Medicine
Dr. Brewster graduated from Wayne State University School of Medicine in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Edward Brewster'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 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)Clinician Public Reporting: Overall MIPS Performance (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. Mark Edward Brewster
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. Mark Edward Brewster's NPI number?
Dr. Mark Edward Brewster's NPI number is 1275773046. It was assigned on March 5, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Edward Brewster?
Dr. Mark Edward Brewster is a gastroenterologist in Bismarck, North Dakota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mark Edward Brewster practice?
Dr. Brewster practices at 310 N 10th St, Bismarck, ND 58501. Dr. Brewster's primary practice is Infinity Medical Management in Bismarck, North Dakota. Dmand AI also links Dr. Brewster to 4 hospitals, 1 group practice or clinic and 1 medical group.
What is Dr. Mark Edward Brewster's office phone number?
The practice phone on file for Dr. Brewster is (701) 877-2020.
What is Dr. Mark Edward Brewster's medical license number?
Dr. Brewster holds North Dakota license 20698, one of the licenses on file in 2 states.
Which states has Dr. Mark Edward Brewster been licensed in?
Dmand AI has state licenses on file for Dr. Brewster in North Dakota and Michigan.
Which hospitals is Dr. Mark Edward Brewster affiliated with?
Dr. Brewster is affiliated with Sanford Bismarck Medical Center. Dmand AI links Dr. Brewster to 4 more hospitals.
What medical group is Dr. Mark Edward Brewster part of?
Dr. Brewster is linked to Brightside Specialty Clinics. Dmand AI links Dr. Brewster to 1 more medical group.
Does Dr. Mark Edward Brewster accept Medicare?
Yes. CMS data shows Dr. Brewster billed Medicare for 258 services in 2024, and Dr. Brewster accepts Medicare assignment.
Does Dr. Mark Edward Brewster offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Brewster as offering telehealth services.
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What is Dr. Mark Edward Brewster's MIPS score?
Dr. Brewster's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark Edward Brewster see?
CMS counts 190 Medicare patients who saw Dr. Brewster in 2024, with an average age of 73.
What services does Dr. Mark Edward Brewster bill to Medicare?
In 2024, Dr. Brewster's most billed Medicare services were office visit, established patient (99214) and office visit, new patient (99204).
Where did Dr. Mark Edward Brewster go to medical school?
Dr. Brewster graduated from Wayne State University School of Medicine in 2007.
What drugs does Dr. Mark Edward Brewster prescribe most?
In 2017 Medicare Part D data, Dr. Brewster's most prescribed drugs by claims were Ranitidine HCl, Pantoprazole Sodium and Lansoprazole.
Has Dr. Mark Edward Brewster received payments from drug or device companies?
CMS Open Payments shows $3,710 in general payments to Dr. Brewster from 26 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Mark Edward Brewster been practicing?
Dr. Brewster graduated from medical school in 2007, 19 years ago.
Does Dr. Mark Edward Brewster do research?
Dmand AI links 1 publication to Dr. Brewster.
Who does Dr. Mark Edward Brewster publish with?
Dr. Brewster's most frequent co-authors are Nicholas Carl Boetticher, MD (1 shared paper) and Constance Marie Mobley, MD, PhD (1 shared paper).
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