NPPES file of Aug 9, 2026

Lawrence J. Bortenschlager, M.D.

Critical Care Medicine (Internal Medicine) Physician · Indianapolis, IN

Lawrence J. Bortenschlager, M.D. is a critical care medicine (internal medicine) physician with a practice address in Indianapolis, Indiana, and NPI 1801897236, issued on Aug 9, 2005. Check the license (Indiana 01040211A, as entered in NPPES) on the Medical Licensing Board of Indiana; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801897236
Name
Lawrence J. Bortenschlager
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
01040211A IN
Self-reported in NPPES; status is on the state search
Practice location
1801 Senate Blvd, Indianapolis, IN 46202
Phone
(317) 962-5820
Enumerated
Aug 9, 2005
Record last updated
Feb 24, 2025
Fax
(317) 962-3916
Medicaid IDs
6488157600 KY
200042250 IN
Medicare enrollment
Enrolled (PECOS I20100603000688); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1801 Senate Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Joan Barr, NPClinical Nurse Specialist1558384859
  2. Lisa BellFamily Nurse Practitioner1508256504
  3. Jennifer Biddle, CST/CFASurgical Technologist1407883754
  4. Emily BuchmanAthletic Trainer1083323513
  5. Robert Conner, CST/CFASurgical Technologist1730110941
  6. Brian Davis, CSTSurgical Technologist1992735450

Verify Lawrence J. Bortenschlager in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Licensing Board of Indiana
    Search for license 01040211A
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Indiana license search

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Bills Medicare through one group practice

  1. IU Health Medical Group LLCIndianapolis, IN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Indiana

There are 163 critical care medicine (internal medicine) physician records in Indiana.

Other critical care medicine (internal medicine) physician records in Indiana

  1. Bruce Ackerman, M.D.Indianapolis, IN1154327633
  2. Shahryar Ahmad, MDIndianapolis, IN1528253267
  3. Armais Akovbyan, MD, DOFort Wayne, IN1730472945
  4. Ismail Al-Ani, MDSouth Bend, IN1578547402
  5. James Aldridge, D.O.Rochester, IN1710085550
  6. Mohannad Alhasani, MDFort Wayne, IN1801243548
  7. Muhammad Ali, MDLafayette, IN1174591580
  8. Anas Alsadi, MDAnderson, IN1881841013
  9. Heidi Alvey, MDIndianapolis, IN1386938702
  10. Nestor Anguiano, M.D.Indianapolis, IN1326381559

Common questions

What is Lawrence J. Bortenschlager, M.D.'s NPI number?

Lawrence J. Bortenschlager, M.D.'s National Provider Identifier (NPI) is 1801897236, issued on Aug 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence J. Bortenschlager, M.D. located?

The NPPES record lists a practice address at 1801 Senate Blvd, Indianapolis, IN, 46202. Phone: (317) 962-5820. Providers update this record themselves, so call before visiting.

How can I verify Lawrence J. Bortenschlager, M.D.'s license?

NPPES lists Indiana license number 01040211A, as entered by the provider. Search the Medical Licensing Board of Indiana at https://www.in.gov/pla/professions/physicians-home/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.