NPPES file of Aug 9, 2026

Geoffrey Robert Welch

Infectious Disease Physician · Duluth, MN

Geoffrey Robert Welch is an infectious disease physician with a practice address in Duluth, Minnesota, and NPI 1487114500, issued on Mar 24, 2019. Check the license on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487114500
Name
Geoffrey Robert Welch
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
291797 MA
Self-reported in NPPES; status is on the state search
Practice location
400 E 3RD St, Duluth, MN 55805
Phone
(218) 786-8364
Enumerated
Mar 24, 2019
Record last updated
Jul 19, 2024
Medicare enrollment
Enrolled (PECOS I20240903003603); accepts Medicare assignment
Medical or professional school
Texas Tech University Health Science Center School Of Medicine, 2019
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 400 E 3RD St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Peter Aas, MDHospitalist Physician1063455848
  2. Amina Adil, MDCardiovascular Disease Physician1336482314
  3. Rahul Aggarwal, M.D.Pediatric Critical Care Medicine Physician1336198332
  4. Olubisi Akinseloyin, MDHospitalist Physician1619309010
  5. Glenn Albin, M.DCardiovascular Disease Physician1902851116
  6. David AlexanderDiagnostic Radiology Physician1932135936

Verify Geoffrey Robert Welch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical PracticeCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Minnesota license search

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65% fewer Medicare Part D claims than the average infectious disease physician in 2024

238 Medicare Part D claims for 57 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D.

  1. Geoffrey Welch238
  2. Specialty average689

Most prescribed

  1. Ceftriaxone42 claims
  2. Daptomycin28 claims
  3. Cefazolin Sodium23 claims
  4. Cefepime Hcl17 claims
  5. Ertapenem17 claims
  6. Amoxicillin13 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. The Duluth Clinic LtdDuluth, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Geoffrey Robert Welch among 216 infectious disease physician records in Minnesota

Geoffrey Robert Welch is one of 216 infectious disease physician records with a practice address in Minnesota. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 84% of them.

  • NPI issued2019 · 84% of these records are older, 13% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2019 · median 2007 among the 153 with a school on file
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Minnesota

There are 216 infectious disease physician records in Minnesota.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Timothy BurkeDuluth, MN 558051740213586
  2. Sara Lund, M.D.Duluth, MN 558051649567173
  3. Paul McHenry, MDDuluth, MN 558051962422923
  4. Rajesh PrabhuDuluth, MN 558051598825457
  5. Maxine Seales Kasangana, M.D.Duluth, MN 558051417260704
  6. Jordan TichenorDuluth, MN 558051003299827
  7. Johan Bakken, MDDuluth, MN 558021366491789
  8. Andrew Thompson, M.D.Duluth, MN 558021700020856

Common questions

What is Geoffrey Robert Welch's NPI number?

Geoffrey Robert Welch's National Provider Identifier (NPI) is 1487114500, issued on Mar 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Geoffrey Robert Welch located?

The NPPES record lists a practice address at 400 E 3RD St, Duluth, MN, 55805. Phone: (218) 786-8364. Providers update this record themselves, so call before visiting.

How can I verify Geoffrey Robert Welch's license?

Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Geoffrey Robert Welch prescribe under Medicare Part D?

In 2024, Geoffrey Robert Welch had 238 Medicare Part D claims for 57 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.