Dr. Arunkumar Muthusamy, MD

  • Saint Paul, MN
  • Gastroenterologist
NPI1861745507PAC ID0749583078
Medicare services, 2024
635
Medicare patients, 2024
300
Part D claims, 2024
518
Publications
7
Hospital affiliations
4
Practice address
1997 Sloan N Pl, Saint Paul, MN 55117
Practice phone
Call (651) 383-3333
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Minneapolis Children's Surgery Center

Saint Paul, Minnesota

See all 7 affiliations

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Dr. Arunkumar Muthusamy is a gastroenterologist in Saint Paul, Minnesota

Dr. Muthusamy practices at Minneapolis Children's Surgery Center in Saint Paul, Minnesota.

Dr. Muthusamy's NPI, 1861745507, was assigned on October 18, 2012. Dr. Muthusamy holds Iowa license MD44624.

NPI and contact details
Medicare PAC ID
0749583078
NPI enumeration date
October 18, 2012
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(651) 383-3333
Professional email
Get email
Personal email
Get email
Mobile number
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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. Arunkumar Muthusamy practices at Minneapolis Children's Surgery Center in Saint Paul, Minnesota

Dr. Muthusamy's primary practice is Minneapolis Children's Surgery Center, at 1997 Sloan N Pl, Saint Paul, MN 55117 in Ramsey County. The practice phone is (651) 383-3333.

  • Minneapolis Children's Surgery Center
    1997 Sloan N Pl, Saint Paul, MN 55117 · Ramsey CountyPhone(651) 383-3333

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Arunkumar Muthusamy is affiliated with 6 sites of care and 1 medical group

Dr. Muthusamy's primary practice is Minneapolis Children's Surgery Center in Saint Paul, Minnesota. Dr. Muthusamy is also affiliated with Abbott Northwestern Hospital. The medical group on file is MNGI Digestive Health. Dmand AI also links Dr. Muthusamy to 3 more hospitals and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Muthusamy

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Arunkumar Muthusamy's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Muthusamy practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Minneapolis Children's Surgery CenterAvailable with a free account
+5 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Arunkumar Muthusamy is one of 366 gastroenterologists in Minnesota

Gastroenterology is Dr. Muthusamy's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Muthusamy is licensed in Iowa.

Specialties and state licenses

  • Gastroenterology, IowaPrimaryLicense MD44624 · taxonomy 207RG0100X

Gastroenterologists near Dr. Muthusamy

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. Arunkumar Muthusamy billed Medicare for 635 services in 2024

CMS data shows 635 Medicare services from Dr. Muthusamy across 11 procedure codes in 2024, for 300 Medicare patients. Medicare paid $43,262 for them.

Medicare services, 2024635
Medicare patients300
Paid by Medicare$43,262
Procedure codes11

Dr. Muthusamy's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Lab and pathology
2023: 1492024: 26074%
Surgery
2023: 1452024: 23260%
Office and hospital visits
2023: 1002024: 14343%
Drugs given in the office
2023: 5,1002024: 0100%
Tests and treatments
2023: 222024: 0100%

Where Dr. Muthusamy's Medicare services took place, 2024

  • In an office40363%
  • In a facility23237%

Dr. Muthusamy compared with the Minnesota median for gastroenterologists, 2024

  • Dr. Muthusamy
  • Minnesota median
Medicare services
635vs 2742.3 times
Medicare patients
300vs 19852% above
Part D claims
416vs 1422.9 times

Medians across 380 gastroenterologists in Minnesota with Dmand AI profiles that report each measure.

Dr. Muthusamy'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.

See all procedures by Dr. Muthusamy

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Arunkumar Muthusamy treated 300 Medicare patients in 2024, average age 71

CMS counts 300 Medicare patients who saw Dr. Muthusamy in 2024. The largest group is 65 to 74, with 127 patients. 70% of them have high cholesterol, and 66% have high blood pressure. 20% are also on Medicaid. Their average risk score is 1.50, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Muthusamy's median patient age at 57, with 55% women.

Medicare patients, 2024300
Average age71
Average risk score1.50
Also on Medicaid20%

Dr. Muthusamy's Medicare patients by age, 2024

Dr. Muthusamy's Medicare patients by sex, 2024

  • Women17057%
  • Men13043%

Chronic conditions among Dr. Muthusamy's Medicare patients, 2024

  1. High cholesterol70%
  2. High blood pressure66%
  3. Arthritis45%
  4. Mood disorders41%
  5. Depression36%
  6. Anxiety34%
  7. Diabetes30%
  8. Ischemic heart disease30%

Share of Medicare patients with each condition. A patient can have several.

Dr. Muthusamy'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

  • Women55%
  • Men45%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Arunkumar Muthusamy wrote 518 Medicare Part D claims in 2024

In 2024, Dr. Muthusamy wrote 518 Medicare Part D claims for 227 patients. 84% of them were for generic drugs. CMS names the drug for 416 of them, across 11 drugs with 11 or more claims each, at $69,052 in total drug cost. In 2023, CMS named 185 claims across 5 drugs.

Part D claims, 2024518
Drugs named by CMS11
Total drug cost$69,052
Part D patients227

Dr. Muthusamy's Part D claims by kind of drug, 2024

  • Generic435 claims84%
  • Brand-name83 claims16%

Dr. Muthusamy'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.

Drug classes CMS tracks in Dr. Muthusamy's Part D claims, 2024

  • Antibiotics4%20 of 518 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1852024: 416125%

Drugs named by CMS: 11 in 2024, 5 in 2023.

See all prescribing by Dr. Muthusamy

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. Arunkumar Muthusamy ranks in the 70th percentile for upper gastrointestinal (gi) endoscopy for acid reflux in Medicare

Dr. Muthusamy accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Muthusamy as offering telehealth. CMS counts 73 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Muthusamy, more than 70% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Where Dr. Muthusamy ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
70th percentile73 procedures
Colonoscopy
66th percentile56 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. Arunkumar Muthusamy has 7 publications on record

Dmand AI links 7 papers to Dr. Muthusamy, published from 2013 to 2025. 2023 was the busiest year, with 2. Dr. Muthusamy has published most often in Ann Gastroenterol. Dr. Muthusamy's most frequent co-authors are Saurabh Chandan, MD, Priyadarshini Loganathan, MD and Douglas Graham Adler, MD.

Papers7
Years published2013 to 2025

Dr. Muthusamy's papers by year, 2013 to 2025

Dr. Muthusamy's most frequent co-authors

Recent publications by Dr. Muthusamy

See all 7 publications and co-authors

See who Dr. Muthusamy researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Muthusamy works with, so you can find a warm path to the right gastroenterologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Arunkumar Muthusamy received $339 in industry payments in 2018

CMS Open Payments shows 18 general payments to Dr. Muthusamy from 4 drug and device companies in 2018. Food and beverage make up the largest share, 83% of the total. Abbvie Inc. paid the most, $165.

General payments to Dr. Muthusamy by kind, 2018 to 2018

$339in total
  • Food and beverage$28283%
  • Education$5717%

Companies that paid Dr. Muthusamy the most, 2018 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Muthusamy

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Arunkumar Muthusamy's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors 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-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Arunkumar Muthusamy

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. Arunkumar Muthusamy's NPI number?

Dr. Arunkumar Muthusamy's NPI number is 1861745507. It was assigned on October 18, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Arunkumar Muthusamy?

Dr. Arunkumar Muthusamy is a gastroenterologist in Saint Paul, Minnesota. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Arunkumar Muthusamy practice?

Dr. Muthusamy practices at 1997 Sloan N Pl, Saint Paul, MN 55117. Dr. Muthusamy's primary practice is Minneapolis Children's Surgery Center in Saint Paul, Minnesota. Dmand AI also links Dr. Muthusamy to 3 hospitals and 1 group practice or clinic.

What is Dr. Arunkumar Muthusamy's office phone number?

The practice phone on file for Dr. Muthusamy is (651) 383-3333.

What is Dr. Arunkumar Muthusamy's medical license number?

Dr. Muthusamy holds Iowa license MD44624.

Which hospitals is Dr. Arunkumar Muthusamy affiliated with?

Dr. Muthusamy is affiliated with Abbott Northwestern Hospital. Dmand AI links Dr. Muthusamy to 3 more hospitals.

What medical group is Dr. Arunkumar Muthusamy part of?

Dr. Muthusamy is linked to MNGI Digestive Health.

Does Dr. Arunkumar Muthusamy accept Medicare?

Yes. CMS data shows Dr. Muthusamy billed Medicare for 635 services in 2024, and Dr. Muthusamy accepts Medicare assignment.

Does Dr. Arunkumar Muthusamy offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Muthusamy as offering telehealth services.

How many Medicare patients does Dr. Arunkumar Muthusamy see?

CMS counts 300 Medicare patients who saw Dr. Muthusamy in 2024, with an average age of 71.

Show 6 more questionsShow fewer questions

What services does Dr. Arunkumar Muthusamy bill to Medicare?

In 2024, Dr. Muthusamy's most billed Medicare services were lab and pathology test (88305), surgery: digestive system (45385) and surgery: digestive system (43239).

What drugs does Dr. Arunkumar Muthusamy prescribe most?

In 2024 Medicare Part D data, Dr. Muthusamy's most prescribed drugs by claims were Pantoprazole Sodium, Omeprazole and Colestipol HCl.

Has Dr. Arunkumar Muthusamy received payments from drug or device companies?

CMS Open Payments shows $339 in general payments to Dr. Muthusamy from 4 companies from 2018 to 2018. The largest total came from Abbvie Inc.

How long has Dr. Arunkumar Muthusamy been practicing?

Dr. Muthusamy graduated from medical school in 2007, 19 years ago.

Does Dr. Arunkumar Muthusamy do research?

Dmand AI links 7 publications to Dr. Muthusamy, published from 2013 to 2025.

Who does Dr. Arunkumar Muthusamy publish with?

Dr. Muthusamy's most frequent co-authors are Saurabh Chandan, MD (3 shared papers), Priyadarshini Loganathan, MD (2 shared papers) and Douglas Graham Adler, MD (1 shared paper).

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