GREGORY B ELSNER MD
NPI 1619941895
Internal Medicine - Interventional Cardiology in Indianapolis, IN
About Gregory B Elsner Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREGORY B ELSNER MD (NPI 1619941895) is an individual interventional cardiology provider in Indianapolis, Indiana, licensed in Indiana (01037699A) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Riverview Health, and is a graduate of Indiana University School Of Medicine (1988).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Gregory B Elsner Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Gregory Elsner reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46260
- Reassigned Medicare billing, Indiana enrollment
- 945 clinicians in this Medicare group
Indianapolis, IN 46260
- Reassigned Medicare billing, Indiana enrollment
- 510 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 19
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.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Riverview Health
Acute Care Hospitals · Noblesville, INAscension St Vincent Hospital
Acute Care Hospitals · Indianapolis, INWitham Health Services
Acute Care Hospitals · Lebanon, INSt Vincent Heart Center
Acute Care Hospitals · Carmel, INWoodlawn Hospital
Critical Access Hospitals · Rochester, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46290 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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 46290
INDIANAPOLIS, IN 46290
INDIANAPOLIS, IN 46290
INDIANAPOLIS, IN 46290
CARMEL, IN 46290
INDIANAPOLIS, IN 46290
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 Gregory Elsner's NPI number?
The NPI number for Gregory Elsner is 1619941895. It was assigned to this individual provider in the NPPES registry on February 15, 2006.
Where is Gregory Elsner located?
Gregory Elsner practices at 10590 N Meridian St, Indianapolis, IN 46290. The listed phone number is (317) 338-6666.
What is Gregory Elsner's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Gregory Elsner enrolled in Medicare?
Yes. Gregory Elsner is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Elsner's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Elsner reassigns Medicare benefits to 2 organizations: St Vincent Medical Group Inc (Indianapolis, IN) and St Vincent Physician Services Hospital And Health Care Center (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 Gregory Elsner's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Elsner accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Gregory Elsner 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.
Is Gregory Elsner affiliated with any hospitals?
According to CMS data, Gregory Elsner is affiliated with Riverview Health, Ascension St Vincent Hospital, Witham Health Services, St Vincent Heart Center and Woodlawn Hospital.
When was this NPI record last updated?
The NPPES record for Gregory Elsner was last updated on June 20, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.