MATTHEW R. CARNS M.D.
NPI 1346420965
Internal Medicine - Gastroenterology in Mankato, MN

Q: What is Matthew Carns's NPI number?

The NPI number for Matthew Carns is 1346420965. It was assigned to this individual provider in the NPPES registry on November 12, 2007.

Q: What is Matthew Carns's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Q: When was this NPI record last updated?

The NPPES record for Matthew Carns was last updated on July 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 12, 2007PECOS EnrolledAccepts Medicare Assignment

1230 E MAIN ST, MANKATO, MN 56001(507) 625-1811 Get Directions Write a Review

NPPES record last updated: July 10, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Matthew R. Carns M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MATTHEW R. CARNS M.D. (NPI 1346420965) is an individual gastroenterology provider in Mankato, Minnesota, licensed in Minnesota (54904) and active in the NPI registry since November 2007. He is enrolled in Medicare PECOS, is affiliated with Abbott Northwestern Hospital, and is a graduate of Medical College Of Wisconsin (2005).

NPPES Registry Identity

NPI1346420965

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameMATTHEW R. CARNSCredential: M.D.

Location Address1230 E MAIN STMankato, MN 56001-5066

Mailing Address1230 E Main St, Po Box 8674Mankato, MN 56001-5066 · (507) 625-1811

Phone(507) 625-1811

Sole ProprietorNo

Medical School CMSMedical College Of WisconsinGraduated 2005

Enumeration DateNovember 12, 2007

Last NPPES UpdateJuly 10, 2020

NPPES CertifiedJuly 10, 2020

✔ NPI 1346420965 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians

Taxonomy Code207RG0100X

License✔ Licensed in MN · 54904

Definition

An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

1230 E MAIN ST, Mankato, MN 56001

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Sanford Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Matthew R. Carns M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981736154

PECOS Enrollment IDI20120828000295

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Matthew Carns reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mankato Clinic Ltd

0.2 mi

Family Medicine

1230 E MAIN ST
Mankato, MN 56001

Reassigned Medicare billing, Minnesota enrollment
322 clinicians in this Medicare group

NPI 1629044029 (800) 657-6944

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 25

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito G0500

Moderate sedation is a method where a physician uses medication to help you relax during a gastrointestinal endoscopy. An independent trained observer will be present to monitor your vital signs and ensure your safety throughout the procedure. It's a common and safe practice.

344 services334 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

244 services98 patients

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385

This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.

198 services197 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

178 services64 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

165 services66 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

119 services94 patients

Measurement c-reactive protein for detection of infection or inflammation 86140

C-reactive protein (CRP) test is a blood test that checks for signs of inflammation or infection in the body. High levels of CRP often suggest that there's inflammation or a bacterial infection. This test helps in monitoring and managing conditions like arthritis and heart disease.

102 services23 patients

Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239

This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.

100 services98 patients

Red blood cell sedimentation rate, to detect inflammation, automated 85652

The Red Blood Cell Sedimentation Rate is a test that helps detect inflammation in the body. It's automated, meaning a machine does the work. This test measures how fast red blood cells settle at the bottom of a tube in an hour. A faster rate may indicate inflammation.

93 services17 patients

Biopsy of large bowel using a flexible endoscope 45380

A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.

82 services82 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

64 services50 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

53 services53 patients

Blood test, clotting time 85610

A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.

43 services26 patients

Removal of large bowel tissue using a flexible endoscope 45390

This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.

28 services28 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test 85027

A complete blood cell count (CBC) is an automated test that measures different components of the blood, including red cells, white cells, and platelets. It helps assess overall health, detect disorders like anemia or infection, and monitor medical treatments.

28 services18 patients

Colorectal cancer screening; colonoscopy on individual at high risk G0105

Colorectal cancer screening, specifically a colonoscopy, is a preventive measure for those at high risk. A thin, flexible tube with a camera inspects the colon to spot any abnormal growths. This test helps detect potential issues early, enhancing the effectiveness of treatment.

23 services23 patients

Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm 43249

This procedure involves using a flexible tube with a camera, called an endoscope, to gently expand narrowed areas in your esophagus, stomach, or upper small bowel. A small balloon is inflated, making it easier for food and liquid to pass through. It's safe and effective.

20 services20 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

18 services16 patients

Iron level 83540

An iron level test measures the amount of iron in your blood. Iron is crucial for producing hemoglobin, a protein in red blood cells that carries oxygen throughout your body. This test helps identify iron deficiencies or excesses, which can lead to conditions like anemia or hemochromatosis.

17 services12 patients

Iron binding capacity 83550

Iron binding capacity is a blood test that measures how well your body can bind and transport iron. This helps your healthcare provider assess if your body has too little or too much iron, which can indicate certain health conditions.

17 services12 patients

Ferritin (blood protein) level 82728

A Ferritin level test measures the amount of ferritin, a protein that stores iron, in your blood. It helps determine how much iron your body is storing. If levels are low, it may indicate iron deficiency, while high levels could signify conditions like iron overload.

16 services11 patients

Measurement of hydrogen in breath to test for stomach and bowel symptoms 91065

This test involves breathing into a bag to measure hydrogen levels in your breath. High levels can indicate issues with food digestion or absorption in your stomach or intestines. It's non-invasive, painless, and helps diagnose certain gastrointestinal conditions.

15 services15 patients

Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk G0121

Colorectal cancer screening, such as a colonoscopy, is a preventive measure to detect early signs of cancer in the large intestine. For individuals not at high risk, it's typically recommended at age 50. A small, flexible tube with a camera is used to examine your colon. It's a safe, effective way to catch issues early.

15 services15 patients

Vitamin d-3 level 82306

A Vitamin D-3 level test measures the amount of Vitamin D-3, a crucial nutrient, in your body. This test helps identify if your levels are too low or too high. Low levels may lead to bone weakness, while high levels could harm your kidneys. It's a simple blood test.

14 services13 patients

Cyanocobalamin (vitamin b-12) level 82607

A Cyanocobalamin (Vitamin B-12) level test is a blood test that checks the amount of Vitamin B-12 in your body. This vitamin is vital for nerve function and the creation of red blood cells. Low or high levels could indicate a potential health issue.

13 services13 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Abbott Northwestern Hospital

Acute Care Hospitals · Minneapolis, MN

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240057

Location800 East 28th StreetMinneapolis, MN 55407 · Hennepin County

Emergency services Birthing friendly

Mayo Clinic Health System - Mankato

Acute Care Hospitals · Mankato, MN

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number240093

Location1025 Marsh StreetMankato, MN 56001 · Blue Earth County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 56001 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$127.61 typical visit price

range $56.00 – $168.28

Typical copayment $31.90 (range $14.00 – $42.07)

Most-billed visit code 99204

Established Patient

$98.61 typical visit price

range $18.32 – $138.04

Typical copayment $24.65 (range $4.58 – $34.51)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. TIMOTHY W. HUISKEN MD

Surgery

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

SURESH DEVINENI M.D.

Internal Medicine (Hematology & Oncology)

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

MRS. SEASON MARIE HOFFMAN

Nurse Practitioner (Family)

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

DANIELLE WENDINGER RN, CNP

Nurse Practitioner (Family)

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

TARA SCHROEDER NP

Nurse Practitioner (Family)

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

BIRENDRA S KUMAR MD

Internal Medicine (Hematology & Oncology)

1230 E MAIN ST, MANKATO CLINIC AT MAIN STREET
MANKATO, MN 56001

Blue Earth County (507) 625-1811

JACOB NIENOW DPT

Physical Therapist

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

CATHERINE MARIE PHILLIPS PA-C

Physician Assistant

1230 E MAIN ST
MANKATO, MN 56001

Blue Earth County (507) 625-1811

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Matthew Carns's NPI number?

The NPI number for Matthew Carns is 1346420965. It was assigned to this individual provider in the NPPES registry on November 12, 2007.

Where is Matthew Carns located?

Matthew Carns practices at 1230 E Main St, Mankato, MN 56001. The listed phone number is (507) 625-1811.

What is Matthew Carns's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Matthew Carns enrolled in Medicare?

Yes. Matthew Carns is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Matthew Carns's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Carns reassigns Medicare benefits to Mankato Clinic Ltd (Mankato, MN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Matthew Carns's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Matthew Carns accept?

Health plans from Sanford Health Plan list Matthew Carns as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Matthew Carns affiliated with any hospitals?

According to CMS data, Matthew Carns is affiliated with Abbott Northwestern Hospital and Mayo Clinic Health System - Mankato.

When was this NPI record last updated?

The NPPES record for Matthew Carns was last updated on July 10, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.