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Psychiatry

Lindsay M. Diemer, DO

Sees patients in Beech Grove, IN · Indiana

Summary

Dr. Lindsay M. Diemer, DO is a psychiatrist at 17 N 5th Ave, Suite 1021, Beech Grove, IN 46107. Phone: (415) 360-3348. Accepts Medicare assignment. NPI 1023457124. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 17 N 5th Ave, Suite 1021, Beech Grove, IN 46107 · Directions
  • Phone: (415) 360‑3348
  • Medicare: Accepts Medicare assignment
  • Group practice: Brightside Health Inc
  • Medical school: At Still University Of Health Sciences, College Of Osteo Med, Kirksville · graduated 2013 (13 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Lindsay M. Diemer, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Lindsay M. Diemer accept Medicare assignment?
Yes. Medicare's clinician data says Lindsay M. Diemer accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Lindsay M. Diemer's NPI number?
1023457124. 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 Lindsay M. Diemer is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lindsay M. Diemer as a member of this group (CMS data updated October 2, 2026).

  • Brightside Health Inc218 clinicians in the group

Specialties

Find other Psychiatry doctors in Indiana →

Other psychiatrists in Indiana

Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.

All psychiatrists in Indiana →

Other clinicians in Brightside Health Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialDO
Medical schoolAt Still University Of Health Sciences, College Of Osteo Med, Kirksville
Graduation year2013 (13 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1023457124
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 October 2, 2026, retrieved October 29, 2026
  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