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Internal Medicine Providers in Seguin, TX

Browse 6 Internal Medicine providers listed in NPPES with a practice address in Seguin, Texas.

6 Healthcare Providers

How Seguin compares with the U.S.

6 active clinicians in Internal Medicine list a practice address in Seguin, TX in the NPI registry.

With fewer than 10 clinicians, rates per 100,000 residents are not reliable enough to compare.

Too few clinicians in Internal Medicine in Seguin are listed in the CMS Medicare file to report Medicare assignment or telehealth shares.

These figures summarize public federal data. They do not measure quality of care, appointment availability, or whether a clinician accepts your insurance or new patients. Registry addresses can be out of date. Please confirm details directly with the office and your plan. This information is not medical advice.

Prepared by T-MedInfo from NPPES, CMS and U.S. Census Bureau data. Questions or corrections: support@true-medinfo.com ยท Methodology

Sources: Clinician counts and practice addresses: NPPES NPI Registry, Centers for Medicare & Medicaid Services (CMS), data as of August 2026.

Showing 1โ€“6 of 6 providers
With recent CMS data first, then Aโ€“Z

Dr. Juan Enrrique Arenas-Herrera , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
1215 E Court St, Seguin, TX 781555129
Phone: 8303121116
NPI Identifier 1447510011
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Dr. Robert Lynn Frets , MD

Internal Medicine

Active NPI Status
1255 Ashby St, Seguin, TX 781555100
Phone: 8303721615
NPI Identifier 1578557203
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Dr. Susan Marie Heineck , MD

Internal Medicine

Active NPI Status
1215 E Court St, Seguin, TX 781555129
Phone: 8303792411
NPI Identifier 1245345610
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Dr. Yu Jie Jack Kuo , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment Telehealth Services Available
1356 E Walnut St, Seguin, TX 781555126
Phone: 8303725588
NPI Identifier 1841485588
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Dr. Adaeze Chimeogo Nwosu , MD

Internal Medicine

Active NPI Status Accepts Medicare Assignment
920 W Court St # 100, Seguin, TX 781553424
Phone: 8304693133
NPI Identifier 1114214061
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Dr. Ethan Massingill , DO

Internal Medicine

Active NPI Status
1215 E Court St, Seguin, TX 781555129
Phone: 8303792411
NPI Identifier 1619665478
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Frequently Asked Questions about Internal Medicine in Seguin

How do I check a Internal Medicine practitioner's license?

Each practitioner profile shows the NUCC taxonomy code and any state license number the practitioner reported to NPPES, plus a link to the Texas licensing board lookup. NPPES entries are self-reported; current license status is published only by the state board.

Why is a practitioner missing from this list?

This list shows NPI records that are active in NPPES. A deactivated NPI keeps its profile with the deactivation date and practice history; find it with the site search by name or NPI number.

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