LAWRENCE J BORTENSCHLAGER M.D.
NPI 1801897236
Internal Medicine - Critical Care Medicine in Indianapolis, IN
About Lawrence J Bortenschlager M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LAWRENCE J BORTENSCHLAGER M.D. (NPI 1801897236) is an individual critical care medicine provider in Indianapolis, Indiana, licensed in Indiana (01040211A) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Indianapolis.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Lawrence J Bortenschlager M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Lawrence Bortenschlager reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 318 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46202 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
INDIANAPOLIS, IN 46202
INDIANAPOLIS, IN 46202
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Lawrence Bortenschlager's NPI number?
The NPI number for Lawrence Bortenschlager is 1801897236. It was assigned to this individual provider in the NPPES registry on August 9, 2005.
Where is Lawrence Bortenschlager located?
Lawrence Bortenschlager practices at 1801 Senate Blvd Suite 230, Indianapolis, IN 46202. The listed phone number is (317) 962-5820.
What is Lawrence Bortenschlager's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Lawrence Bortenschlager enrolled in Medicare?
Yes. Lawrence Bortenschlager is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Lawrence Bortenschlager's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lawrence Bortenschlager reassigns Medicare benefits to 2 organizations: Indiana Clinic Critical Care LLC (Indianapolis, IN) and Iu Health Medical Group, LLC (Indianapolis, IN). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lawrence Bortenschlager's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lawrence Bortenschlager accept?
Health plans from CareSource list Lawrence Bortenschlager as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Lawrence Bortenschlager was last updated on February 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Lawrence J Bortenschlager, M.D. · NPI 1801897236
Critical Care Medicine physician in Indianapolis, Indiana. Individual provider, active in the CMS NPPES registry since August 9, 2005.
## Identity
- **NPI:** 1801897236 (Entity type: Individual)
- **Enumerated:** August 9, 2005
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** 01040211A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1801 SENATE BLVD, SUITE 230, Indianapolis, IN 46202-1252
- **Phone:** (317) 962-5820 · **Fax:** (317) 962-3916
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Indiana Clinic Critical Care LLC (NPI 1417285230, Indianapolis, IN); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 24, 2025
- **Other identifiers:** Medicaid 6488157600 (KY); Medicaid 200042250 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1801897236) · Data from the CMS NPPES public registry.