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Internal Medicine

Derek Tennenhouse, MD

Sees patients in Kokomo, IN · Indianapolis, IN · Indiana

Summary

Derek Tennenhouse, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Kokomo, IN and Indianapolis, IN. NPI 1689813073. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Derek Tennenhouse, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
28Years since medical school (graduated 1998)
Indiana University School Of MedicineMedical school
MaleGender (as listed)
Healogics Specialty Physicians of Indiana LLCGroup practice

Quick answers

Where does Derek Tennenhouse see patients?
Medicare's clinician data lists 2 practice locations, including Kokomo, IN and Indianapolis, IN. Call before your visit to confirm the address.
What is Derek Tennenhouse's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Derek Tennenhouse accept Medicare assignment?
Yes. Medicare's clinician data says Derek Tennenhouse 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.
What is the phone number for Derek Tennenhouse?
(904) 466-3701, as listed in official Medicare / NPI Registry data.
What is Derek Tennenhouse's NPI number?
1689813073. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Derek Tennenhouse is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Derek Tennenhouse as a member of this group (CMS data updated 2026-10-02).

  • Healogics Specialty Physicians of Indiana LLC16 clinicians in the group

Specialties

Find other Internal Medicine doctors in Indiana →

Other internal medicine doctors in Kokomo

Clinicians with the same Medicare primary specialty in Kokomo, IN — not a recommendation.

All internal medicine doctors in Kokomo →

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year1998
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689813073
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians