Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Colorectal Surgery (Proctology)

David W. Larson, MD

Works at hospitals in Rochester, MN · Minnesota

Summary

David W. Larson, MD (Colorectal Surgery (Proctology)) is listed by Medicare at 1 hospital in Rochester, MN. NPI 1255301818. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about David W. Larson, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Colorectal Surgery (Proctology)Primary specialty
YesAccepts Medicare assignment
YesOffers telehealth
29Years since medical school (graduated 1997)
University Of Minnesota Medical SchoolMedical school
MaleGender (as listed)
Mayo ClinicGroup practice

Quick answers

Which hospitals does David W. Larson work at?
Medicare's official clinician data lists David W. Larson at 1 hospital: Mayo Clinic Hospital Rochester. This is where the clinician works or has privileges; call the hospital to confirm.
Where does David W. Larson see patients?
Medicare's clinician data lists 1 practice location in Rochester, MN. Call before your visit to confirm the address.
What is David W. Larson's specialty?
Medicare lists Colorectal Surgery (Proctology) as the primary specialty.
Does David W. Larson accept Medicare assignment?
Yes. Medicare's clinician data says David W. Larson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does David W. Larson offer telehealth?
Medicare's clinician data says David W. Larson offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for David W. Larson?
(507) 284-2511, as listed in official Medicare / NPI Registry data.
What is David W. Larson's NPI number?
1255301818. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where David W. Larson works

Medicare's Facility Affiliation Data lists David W. Larson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where David W. Larson is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists David W. Larson as a member of this group (CMS data updated 2026-10-02).

  • Mayo Clinic4,956 clinicians in the group

Specialties

Find other Colorectal Surgery (Proctology) doctors in Minnesota →

Other colorectal surgeons in Rochester

Clinicians with the same Medicare primary specialty in Rochester, MN — not a recommendation.

All colorectal surgeons in Rochester →

Clinician information

CredentialMD
Medical schoolUniversity Of Minnesota Medical School
Graduation year1997
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1255301818
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians