Gastrointest Endosc
Capsule EndoscopyGastrointestinal Hemorrhage
Dr. Mark V. Larson, MD
NPI1316910300PAC ID9335176338
- Medicare services, 2024
- 174
- Medicare patients, 2024
- 192
- Part D claims, 2018
- 11
- Publications
- 17
- Hospital affiliations
- 1
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Larson'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 V. Larson is a gastroenterologist in Rochester, Minnesota
Dr. Larson practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
Dr. Larson's NPI, 1316910300, was assigned on February 9, 2006. Dr. Larson graduated from University of Iowa, RJ & L Carver College of Medicine in 1982. Dr. Larson holds Minnesota license 28083.
NPI and contact details
- NPI
- 1316910300NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9335176338
- NPI enumeration date
- February 9, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark V. Larson practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
Dr. Larson's primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
Dr. Mark V. Larson is affiliated with 2 sites of care and 1 medical group
Dr. Larson's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. The medical group on file is Mayo Clinic. Dmand AI also links Dr. Larson to 1 more hospice, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark V. Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Larson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | 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 V. Larson is one of 366 gastroenterologists in Minnesota
Gastroenterology is Dr. Larson's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Larson is licensed in Minnesota.
Specialties and state licenses
- Gastroenterology, MinnesotaPrimary
Gastroenterologists near Dr. Larson
Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.
366gastroenterologists in Minnesota132gastroenterologists in Rochester93gastroenterologists at Mayo Clinic Hospital, Saint Marys Campus
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark V. Larson billed Medicare for 174 services in 2024
CMS data shows 174 Medicare services from Dr. Larson across 7 procedure codes in 2024, for 192 Medicare patients. Medicare paid $17,680 for them.
Medicare services, 2024174
Medicare patients192
Paid by Medicare$17,680
Procedure codes7
Dr. Larson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1462024: 13210%
- Other services
- 2023: 952024: 2969%
- Office and hospital visits
- 2023: 02024: 13
Where Dr. Larson's Medicare services took place, 2024
- In an office137%
- In a facility16193%
Dr. Larson compared with the Minnesota median for gastroenterologists, 2024
- Dr. Larson
- Minnesota median
- Medicare services
- 174vs 27436% below
- Medicare patients
- 192vs 198Close to median
- Part D claims
- 11vs 14292% below
Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.
Dr. Larson'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. Larson?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Larson and other gastroenterologists in Minnesota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark V. Larson treated 192 Medicare patients in 2024, average age 71
CMS counts 192 Medicare patients who saw Dr. Larson in 2024. The largest group is 65 to 74, with 105 patients. 73% of them have high blood pressure, and 66% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.89, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Larson's median patient age at 67, with 44% women.
Medicare patients, 2024192
Average age71
Average risk score1.89
Also on Medicaid14%
Dr. Larson's Medicare patients by age, 2024
Dr. Larson's Medicare patients by sex, 2024
- Women8946%
- Men10354%
Chronic conditions among Dr. Larson's Medicare patients, 2024
- High blood pressure73%
- High cholesterol66%
- Arthritis43%
- Chronic kidney disease34%
- Ischemic heart disease34%
- Diabetes29%
- Atrial fibrillation27%
- Heart failure27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Larson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women44%
- Men55%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark V. Larson wrote 11 Medicare Part D claims in 2018
In 2018, Dr. Larson wrote 11 Medicare Part D claims. They cover 1 drug, with $8,771 in total drug cost.
Part D claims, 201811
Drugs named by CMS1
Total drug cost$8,771
Dr. Larson's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Mark V. Larson ranks in the 79th percentile for colonoscopy in Medicare
Dr. Larson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 96 procedures of colonoscopy by Dr. Larson, more than 79% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Larson ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 77th percentile100 procedures
- Colonoscopy
- 79th percentile96 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark V. Larson has 17 publications on record
Dmand AI links 17 papers to Dr. Larson, published from 2011 to 2023. 2019 was the busiest year, with 3. The most frequent topics are Capsule Endoscopy, Endoscopy, Gastrointestinal and Gastrointestinal Hemorrhage. Dr. Larson has published most often in Am J Gastroenterol. Dr. Larson's most frequent co-authors are David H. Bruining, MD, Navtej S. Buttar, MD and Elizabeth Rajan, MD.
Papers17
Years published2011 to 2023
Dr. Larson's papers by year, 2011 to 2023
Topics Dr. Larson writes about most
- Capsule Endoscopy
- Endoscopy, Gastrointestinal
- Gastrointestinal Hemorrhage
- Patient Education as Topic
- Quality Improvement
Dr. Larson's most frequent co-authors
- David H. Bruining, MD6 shared papers
- Navtej S. Buttar, MD6 shared papers
- Elizabeth Rajan, MD6 shared papers
Recent publications by Dr. Larson
Mayo Clin Proc
Esophageal DiseasesNecrosis
Analgesics, OpioidDrug PrescriptionsEpidemics
Jt Comm J Qual Patient Saf
AftercareDelivery of Health CarePatient Discharge
See who Dr. Larson researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Larson 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 V. Larson graduated from University of Iowa, RJ & L Carver College of Medicine
Dr. Larson graduated from University of Iowa, RJ & L Carver College of Medicine in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark V. Larson'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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 |
| 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 V. Larson
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 V. Larson's NPI number?
Dr. Mark V. Larson's NPI number is 1316910300. It was assigned on February 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark V. Larson?
Dr. Mark V. Larson is a gastroenterologist in Rochester, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Mark V. Larson practice?
Dr. Larson practices at 1216 Second Street Southwest, Rochester, MN 55902. Dr. Larson's primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links Dr. Larson to 1 hospice.
What is Dr. Mark V. Larson's office phone number?
The practice phone on file for Dr. Larson is (507) 255-5123.
What is Dr. Mark V. Larson's medical license number?
Dr. Larson holds Minnesota license 28083.
Which hospitals is Dr. Mark V. Larson affiliated with?
Dr. Larson practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota.
What medical group is Dr. Mark V. Larson part of?
Dr. Larson is linked to Mayo Clinic.
Does Dr. Mark V. Larson accept Medicare?
Yes. CMS data shows Dr. Larson billed Medicare for 174 services in 2024, and Dr. Larson accepts Medicare assignment.
How many Medicare patients does Dr. Mark V. Larson see?
CMS counts 192 Medicare patients who saw Dr. Larson in 2024, with an average age of 71.
What services does Dr. Mark V. Larson bill to Medicare?
In 2024, Dr. Larson's most billed Medicare services were surgery: digestive system (43235), medicare service (G0500) and surgery: digestive system (45378).
Show 5 more questionsShow fewer questions
Where did Dr. Mark V. Larson go to medical school?
Dr. Larson graduated from University of Iowa, RJ & L Carver College of Medicine in 1982.
What drugs does Dr. Mark V. Larson prescribe most?
In 2018 Medicare Part D data, Dr. Larson's most prescribed drugs by claims were Budesonide EC.
How long has Dr. Mark V. Larson been practicing?
Dr. Larson graduated from medical school in 1982, 44 years ago.
Does Dr. Mark V. Larson do research?
Dmand AI links 17 publications to Dr. Larson, published from 2011 to 2023.
Who does Dr. Mark V. Larson publish with?
Dr. Larson's most frequent co-authors are David H. Bruining, MD (6 shared papers), Navtej S. Buttar, MD (6 shared papers) and Elizabeth Rajan, MD (6 shared papers).
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