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Anesthesiology

Timothy A. Lein, MD

Sees patients in Indianapolis, IN · Indiana

Summary

Timothy A. Lein, MD (Anesthesiology) is enrolled with Medicare at 1 practice location in Indianapolis, IN. NPI 1639119662. 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 Timothy A. Lein, 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

AnesthesiologyPrimary specialty
YesAccepts Medicare assignment
35Years since medical school (graduated 1991)
Indiana University School Of MedicineMedical school
MaleGender (as listed)
Northside Anesthesia Services, LLCGroup practice

Quick answers

Where does Timothy A. Lein see patients?
Medicare's clinician data lists 1 practice location in Indianapolis, IN. Call before your visit to confirm the address.
What is Timothy A. Lein's specialty?
Medicare lists Anesthesiology as the primary specialty.
Does Timothy A. Lein accept Medicare assignment?
Yes. Medicare's clinician data says Timothy A. Lein 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 Timothy A. Lein?
(317) 338-2345, as listed in official Medicare / NPI Registry data.
What is Timothy A. Lein's NPI number?
1639119662. 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 Timothy A. Lein is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Timothy A. Lein as a member of this group (CMS data updated 2026-10-02).

  • Northside Anesthesia Services, LLC96 clinicians in the group

Specialties

Find other Anesthesiology doctors in Indiana →

Other anesthesiologists in Indianapolis

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

All anesthesiologists in Indianapolis →

Clinician information

CredentialMD
Medical schoolIndiana University School Of Medicine
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1639119662
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