Updated October 2026

Internists in Duluth, MN

Internal medicine
Duluth, Minnesota

Internists: 73
Linked to a hospital or group: 59
Hospitals with an internist: 20
Medical groups with an internist: 22
Practice at a hospital: 57

There are 73 internists in Duluth. Essentia Health-Duluth Clinic has the most, 31, and Essentia Health-Duluth (Miller-Dwan, Building D) has the most affiliated internists, 36. 28% finished medical school 30 or more years ago.

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Duluth internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a Duluth practice address. The list shows the NPI, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.

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Duluth internists, A to Z
Internist	Hospitals	Medical groups	Email and phone
Wamunyima Akakulu, MDNPI 1033795596	5 hospitals	4 groups	Contacts
John Arthur Anderson, DONPI 1124431051	5 hospitals	4 groups	Contacts
Ryan Taylor AndersonNPI 1407387707	6 hospitals	6 groups	Contacts
David S. Arvold, MDNPI 1790735504	3 hospitals	2 groups	Contacts
Bryan Kincaid Austin, MD, MSNPI 1316997943	5 hospitals	11 groups	Contacts
Christopher James Baker, MDNPI 1497821888	2 hospitals	1 group	Contacts
Clete BarrickNPI 1457691370	1 hospital	2 groups	Contacts
Karyn Baum, MDNPI 1548204795	1 hospital	1 group	Contacts
Catherine P. Benziger, MDNPI 1518266394	5 hospitals	4 groups	Contacts
Rachel Leeann Busko, MDNPI 1629637624	2 hospitals	2 groups	Contacts
Shanna L. Case, MDNPI 1205004215	3 hospitals	1 group	Contacts
Margaret L. Chen, MDNPI 1578678272	5 hospitals	4 groups	Contacts
Collin Steven Christians, MDNPI 1942942313	4 hospitals	1 group	Contacts
Natalia De Albuquerque Rocha, MDNPI 1205241478	6 hospitals	3 groups	Contacts
Josefino Calibo DiazNPI 1891723599	1 hospital	2 groups	Contacts
Ian Christopher Fekete, MDNPI 1649895533	1 hospital	1 group	Contacts
Peter Alan Good, MDNPI 1417913500	5 hospitals	2 groups	Contacts
Robert Alan Hoerr, MDNPI 1386625192	3 hospitals	2 groups	Contacts
George F. Holliday IIINPI 1942240577	5 hospitals	4 groups	Contacts
Joseph John Howard, MDNPI 1861477408	2 hospitals	1 group	Contacts
Okechukwu Nneji IwuNPI 1740356351	2 hospitals	-	Contacts
Ali R. Jaffery, MDNPI 1235690199	4 hospitals	1 group	Contacts
Shahzaad K. Jahangier, MDNPI 1134706716	5 hospitals	1 group	Contacts
Rebecca Lynn JonesNPI 1093857146	3 hospitals	9 groups	Contacts
Gene Gary Karwoski, MDNPI 1326097841	2 hospitals	-	Contacts
Krisa Jean Keute, MDNPI 1629052477	5 hospitals	2 groups	Contacts
Ghori Siddique Rashio Khan, MDNPI 1326072042	2 hospitals	1 group	Contacts
Timothy Charles Kleinschmidt, MDNPI 1245280601	5 hospitals	3 groups	Contacts
Bryan Kevin Koenig, DONPI 1801380928	6 hospitals	4 groups	Contacts
Robert Michael Kraft, MDNPI 1316407653	5 hospitals	2 groups	Contacts
Jessica Arrlette Krog-Breeuwer, MDNPI 1992030837	5 hospitals	2 groups	Contacts
Christopher Andrew Latanich, MDNPI 1336434778	5 hospitals	3 groups	Contacts
Dan Liao, MDNPI 1336420553	1 hospital	1 group	Contacts
Emily Elizabeth Lundstrom, MDNPI 1538746821	2 hospitals	4 groups	Contacts
Zachary Tyler Lundstrom, MDNPI 1134656358	5 hospitals	2 groups	Contacts
David J. Mast, MDNPI 1912958331	3 hospitals	2 groups	Contacts
Luke David Midlo, MDNPI 1518223882	3 hospitals	2 groups	Contacts
Conrad A. Mohr-EymerNPI 1336994540	1 hospital	1 group	Contacts
Mark Herbert MonsonNPI 1144396573	-	-	Contacts
Sabrina Loraine Nesladek, MDNPI 1487396602	1 hospital	2 groups	Contacts
Neha Maria Paul, MBBSNPI 1790039139	5 hospitals	5 groups	Contacts
Susanne Pearce, MDNPI 1588798706	-	-	Contacts
Gratia Lynn Pitcher, MDNPI 1043414543	4 hospitals	2 groups	Contacts
Paul B. Sanford, MDNPI 1649221052	5 hospitals	3 groups	Contacts
Derek J. Schultz, DONPI 1609300573	5 hospitals	2 groups	Contacts
Melissa Marie Simonson, MDNPI 1154559763	2 hospitals	5 groups	Contacts
Gina Marie Slipka-MarinosNPI 1013023589	5 hospitals	1 group	Contacts
Bruce Robert Smith, MDNPI 1255467841	5 hospitals	4 groups	Contacts
Katrina Soriano, MDNPI 1548623762	3 hospitals	1 group	Contacts
Kristina Balck Sturgell, MDNPI 1689866527	2 hospitals	5 groups	Contacts

Showing 1 to 10 of 60 Duluth internists

The list shows the 60 internists with a public profile. The other 13 are counted in the total and searchable with a free account.

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

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Essentia Health-Duluth Clinic has the most internists in Duluth, with 31

Aspirus St. Luke's Hospital is second with 18, and Essentia Health-Polinsky Medical Rehabilitation Center third with 17. Counts are internists with a Minnesota address linked to each group.

Medical groups with the most internists in Duluth
#	Medical group	Parent organization	Internists
1	Essentia Health-Duluth ClinicDuluth	Parent on file	31
2	Aspirus St. Luke's HospitalDuluth	Parent on file	18
3	Essentia Health-Polinsky Medical Rehabilitation CenterDuluth	Parent on file	17
4	Essentia Health-St. Mary's Medical CenterDuluth	Parent on file	6
5	Essentia Health-St. Joseph's Medical CenterBrainerd	Parent on file	6
6	Essentia Health-SandstoneSandstone	Parent on file	4
7	Essentia Health Northern PinesAurora	Parent on file	4
8	Essentia Health Deer RiverDeer River	Parent on file	3
9	Essentia Health-Moose LakeMoose Lake	Parent on file	3
10	HealthEast Medical Research InstituteSaint Paul	Parent on file	2

Top 10 of 22 Duluth medical groups with an internist

Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data

Essentia Health-Duluth (Miller-Dwan, Building D) has the most affiliated internists in Duluth, with 36

Essentia Health-St. Mary's Medical Center is second with 30, and Aspirus St. Luke's Hospital third with 22. Duluth internists are affiliated with 20 hospitals in all.

Hospitals with the most internists in Duluth
#	Hospital	Health system	Internists
1	Essentia Health-Duluth (Miller-Dwan, Building D)Duluth	Essentia Health	36
2	Essentia Health-St. Mary's Medical CenterDuluth	Essentia Health	30
3	Aspirus St. Luke's HospitalDuluth	Aspirus	22
4	Essentia Health-VirginiaVirginia	Essentia Health	14
5	Aspirus Lake View HospitalTwo Harbors	Aspirus	10
6	Community Memorial HospitalCloquet	Community Memorial Hospital	10
7	North Memorial Health - Robbinsdale HospitalRobbinsdale	Sanford Health	9
8	Essentia Health-Moose LakeMoose Lake	Essentia Health	8
9	Fairview Range HospitalHibbing	Fairview Health Services	6
10	Essentia Health-Deer RiverDeer River	Essentia Health	4

Top 10 of 20 Duluth hospitals with an affiliated internistAll 3 Duluth hospitals

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Source: Dmand AI Affiliation Data

Most Duluth internists practice at a hospital: 57 of the 59 with a mapped site

32 also practice at a medical group site, and 19 at urgent care centers. An internist can practice at several kinds of site, so the shares overlap.

Duluth internists by site of care

Hospitals5797%
Medical group practices3254%
Urgent care centers1932%
Home health agencies1525%
Hospices1220%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

28% of Duluth internists finished medical school 30 or more years ago

16 of the 58 Duluth internists with a graduation year on file. 17 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago1729%
10 to 19 years ago1526%
20 to 29 years ago1017%
30 to 39 years ago712%
40 or more years ago916%

Source: Dmand AI Professional Profile Data

Every Duluth internist profile shows current hospitals and groups, Medicare activity and NPI details

Primary practiceThe main place they practice, with its type and cityOn every profile
Every site of careEach hospital, clinic and group where they practice nowWith a free account
EmployerThe organization they work for, when one is on fileWith a free account
Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
EHR in useThe EHR at each site where they practiceWith a free account
Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account

Free account: 30 days free, self-serve, no credit card.

Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data

Sources for the Duluth internist directory

Sources for the data on this page
Data on this page	Source
HCPs, types and specialties	NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groups	Dmand AI Affiliation Data
Medical school graduation year	Dmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracy Remove my information

Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and a Duluth practice address.

FAQ

Frequently asked questions about internists in Duluth

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many internists are in Duluth?

73 internists have an active NPI, a Duluth practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 59 of them are linked to a hospital or medical group.

Which Duluth medical groups have the most internists?

Essentia Health-Duluth Clinic, with 31, followed by Aspirus St. Luke's Hospital with 18 and Essentia Health-Polinsky Medical Rehabilitation Center with 17.

Which Duluth hospitals have the most internists?

Essentia Health-Duluth (Miller-Dwan, Building D), with 36 affiliated internists, followed by Essentia Health-St. Mary's Medical Center with 30 and Aspirus St. Luke's Hospital with 22.

What share of Duluth internists practice at a hospital?

57 of the 59 Duluth internists with a mapped site of care, or 97%, have a current hospital affiliation.

What is the taxonomy code for internal medicine?

207R00000X is the NPPES taxonomy code for internal medicine. Sub-specialties with their own code are counted on their own lists.

How can I contact internists in Duluth?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for internists in Duluth through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.

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