Updated October 2026

Internists in Saint Louis, MO

Internal medicine
Saint Louis, Missouri

Internists: 866
Linked to a hospital or group: 693
Hospitals with an internist: 53
Medical groups with an internist: 119
Practice at a hospital: 612

There are 866 internists in Saint Louis. Mercy Clinic East Communities has the most, 117, and Mercy Hospital St. Louis has the most affiliated internists, 273. 35% finished medical school 30 or more years ago.

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Saint Louis internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a Saint Louis 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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Saint Louis internists, A to Z
Internist	Hospitals	Medical groups	Email and phone
David A. Abbott, MDNPI 1568448850	-	2 groups	Contacts
Wael Mohammed Abduljaber, MDNPI 1174101489	4 hospitals	5 groups	Contacts
Akriti Acharya, MDNPI 1326722455	1 hospital	1 group	Contacts
Bryan Gabriel Acree, DONPI 1023502358	2 hospitals	1 group	Contacts
Nathaniel Evan Adams, MDNPI 1548838535	4 hospitals	1 group	Contacts
Stuart R. Adler, MDNPI 1801819487	-	1 group	Contacts
Soha Afzal, DONPI 1023696507	3 hospitals	5 groups	Contacts
Naman Agrawal, MDNPI 1558927749	1 hospital	7 groups	Contacts
Jaime Agoo Aguinaldo, MDNPI 1407955099	-	1 group	Contacts
Mohammed Ahmed, MDNPI 1609437672	2 hospitals	-	Contacts
Omar A. Al-Abboud, MDNPI 1740693449	3 hospitals	3 groups	Contacts
Suraj Kumar Alakkassery Kumaran, MDNPI 1568698306	2 hospitals	5 groups	Contacts
Quazim Adegbola Alayo, MDNPI 1780178178	2 hospitals	2 groups	Contacts
Youssef AlbousenNPI 1497216436	8 hospitals	3 groups	Contacts
Michael Aaron Albrecht, MDNPI 1083970172	1 hospital	-	Contacts
Asim M. Ali, MDNPI 1821047218	-	-	Contacts
Mohamed A.s. Ali, MDNPI 1285607135	3 hospitals	1 group	Contacts
Naureen Ali, MDNPI 1487036547	3 hospitals	1 group	Contacts
Nada Al Masalmeh, MDNPI 1083147359	3 hospitals	1 group	Contacts
Paul Altsheler, MDNPI 1346225372	2 hospitals	-	Contacts
Ram Sanjeev Alur, MDNPI 1386808798	2 hospitals	5 groups	Contacts
Pragna Ambadi, MDNPI 1740856988	3 hospitals	2 groups	Contacts
Clay M. Anderson, MDNPI 1588601215	2 hospitals	2 groups	Contacts
Scott J. Anderson, MDNPI 1316938764	1 hospital	1 group	Contacts
Scott David Anderson, MDNPI 1376117499	1 hospital	5 groups	Contacts
Scott Richard Anderson, MDNPI 1881330645	1 hospital	1 group	Contacts
Elena Anisimova, MDNPI 1770564437	5 hospitals	3 groups	Contacts
Charmaine Ansari, MDNPI 1972613297	5 hospitals	1 group	Contacts
Nida AnsariNPI 1861142408	1 hospital	-	Contacts
Anam Aqeel, MDNPI 1073178315	1 hospital	5 groups	Contacts
Tiago Araujo, MDNPI 1730600156	1 hospital	5 groups	Contacts
Lydia Luisa Archuleta, MDNPI 1205282639	2 hospitals	2 groups	Contacts
Andrea A. Arvan, MDNPI 1710978705	5 hospitals	1 group	Contacts
Catherine Louise Ash, MDNPI 1861874059	5 hospitals	8 groups	Contacts
Karen Lynn Austin, MDNPI 1649398926	1 hospital	6 groups	Contacts
Bryce A. Ayers, MDNPI 1689610446	4 hospitals	3 groups	Contacts
Sofiya Azim, DONPI 1285256339	1 hospital	1 group	Contacts
Neil Backer, MDNPI 1962933911	1 hospital	5 groups	Contacts
Vaghdevi Bagam, MDNPI 1609449388	1 hospital	6 groups	Contacts
Sammy Sang-June Bai, MDNPI 1386716579	2 hospitals	-	Contacts
Anna E. Bailey Berkley, MDNPI 1811482250	4 hospitals	2 groups	Contacts
Robert D. Baird, MDNPI 1932187531	2 hospitals	3 groups	Contacts
Tim E. Baker, MDNPI 1760596134	2 hospitals	2 groups	Contacts
Frederick Balch Jr., DONPI 1154735439	5 hospitals	7 groups	Contacts
Fred J. Balis, MDNPI 1861447625	1 hospital	2 groups	Contacts
Leigh Rose Ball, MDNPI 1134583925	6 hospitals	2 groups	Contacts
David J. BanNPI 1245349380	2 hospitals	-	Contacts
Rama Devi Bandi, MDNPI 1245441450	-	1 group	Contacts
Jennifer Fernando Barbin, MDNPI 1326160144	2 hospitals	1 group	Contacts
Thomas J. Bartholet, MDNPI 1750325742	5 hospitals	2 groups	Contacts

Showing 1 to 50 of 735 Saint Louis internists

The list shows the 735 internists with a public profile. The other 131 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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Dmand AI has the EHR for 841 of 866 Saint Louis internists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.

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Mercy Clinic East Communities has the most internists in Saint Louis, with 117

Mercy Hospital St. Louis is second with 110, and Mercy Clinic Adult Hospitalists third with 107. Counts are internists with a Missouri address linked to each group.

Medical groups with the most internists in Saint Louis
#	Medical group	Parent organization	Internists
1	Mercy Clinic East CommunitiesSaint Louis	Parent on file	117
2	Mercy Hospital St. LouisSaint Louis	Parent on file	110
3	Mercy Clinic Adult HospitalistsSaint Louis	Parent on file	107
4	Mercy Clinic South HospitalistsSaint Louis	Parent on file	106
5	Mercy Clinic Adult HospitalistsWashington	Parent on file	99
6	Mercy Hospital JeffersonFestus	Parent on file	95
7	WashU Medicine PsychiatrySaint Louis	Parent on file	68
8	SLUCare Physician GroupSaint Louis	Parent on file	62
9	BJC Medical GroupSaint Louis	Parent on file	54
10	Mercy Hospital LincolnTroy	Parent on file	39

Top 10 of 119 Saint Louis medical groups with an internist

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

Mercy Hospital St. Louis has the most affiliated internists in Saint Louis, with 273

Barnes-Jewish Hospital is second with 176, and Mercy Hospital South third with 174. Saint Louis internists are affiliated with 53 hospitals in all.

Hospitals with the most internists in Saint Louis
#	Hospital	Health system	Internists
1	Mercy Hospital St. LouisSaint Louis	Mercy	273
2	Barnes-Jewish HospitalSaint Louis	BJC HealthCare	176
3	Mercy Hospital SouthSaint Louis	Mercy	174
4	Missouri Baptist Medical CenterSaint Louis	BJC HealthCare	161
5	SSM Health Rehabilitation Hospital - Richmond HeightsRichmond Heights	Select Medical Holdings	134
6	Barnes-Jewish West County HospitalCreve Coeur	BJC HealthCare	91
7	St. Luke's HospitalChesterfield	St. Luke's Episcopal-Presbyterian Hospital	85
8	SSM Health St. Mary's Hospital - St. LouisSaint Louis	SSM Health Care	78
9	SSM Health Saint Louis University HospitalSaint Louis	SSM Health Care	59
10	Mercy Hospital JeffersonCrystal City	Mercy	44

Top 10 of 53 Saint Louis hospitals with an affiliated internistAll 17 Saint Louis hospitals

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Source: Dmand AI Affiliation Data

Most Saint Louis internists practice at a hospital: 612 of the 686 with a mapped site

366 also practice at a medical group site, and 180 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.

Saint Louis internists by site of care

Hospitals61289%
Medical group practices36653%
Home health agencies18026%
Hospices9914%
Physician offices497%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

35% of Saint Louis internists finished medical school 30 or more years ago

212 of the 607 Saint Louis internists with a graduation year on file. 143 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago14324%
10 to 19 years ago15325%
20 to 29 years ago9916%
30 to 39 years ago12320%
40 or more years ago8915%

Source: Dmand AI Professional Profile Data

Every Saint Louis 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

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

Sources for the Saint Louis 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 Saint Louis practice address.

FAQ

Frequently asked questions about internists in Saint Louis

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 Saint Louis?

866 internists have an active NPI, a Saint Louis practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 693 of them are linked to a hospital or medical group.

Which Saint Louis medical groups have the most internists?

Mercy Clinic East Communities, with 117, followed by Mercy Hospital St. Louis with 110 and Mercy Clinic Adult Hospitalists with 107.

Which Saint Louis hospitals have the most internists?

Mercy Hospital St. Louis, with 273 affiliated internists, followed by Barnes-Jewish Hospital with 176 and Mercy Hospital South with 174.

What share of Saint Louis internists practice at a hospital?

612 of the 686 Saint Louis internists with a mapped site of care, or 89%, 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.

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