DR. STEPHEN J HARTSOCK MD
NPI 1114938453
Family Medicine - Sports Medicine in Avon, IN
About Dr. Stephen J Hartsock Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN J HARTSOCK MD (NPI 1114938453) is an individual sports medicine provider in Avon, Indiana, licensed in Indiana (01072804A) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Hendricks Regional Health, and is a graduate of Indiana University School Of Medicine (2001).
NPPES Registry Identity
Specialties & Licenses 3
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 and accepts Medicare assignment
Dr. Stephen J Hartsock 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
3Medicare enrollment records show Stephen Hartsock reassigns Medicare billing to 3 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
- 1,781 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 737 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 8
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Hendricks Regional Health
Acute Care Hospitals · Danville, INIndiana University Health
Acute Care Hospitals · Indianapolis, INIu Health West Hospital
Acute Care Hospitals · Avon, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46123 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.
AVON, IN 46123
AVON, IN 46123
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 Stephen Hartsock's NPI number?
The NPI number for Stephen Hartsock is 1114938453. It was assigned to this individual provider in the NPPES registry on August 11, 2006.
Where is Stephen Hartsock located?
Stephen Hartsock practices at 1115 Ronald Reagan Pkwy Ste 148, Avon, IN 46123. The listed phone number is (317) 962-8893.
What is Stephen Hartsock's specialty?
The primary specialty registered for this NPI is Family Medicine, specializing in Sports Medicine, with taxonomy code 207QS0010X.
Is Stephen Hartsock enrolled in Medicare?
Yes. Stephen Hartsock 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 Stephen Hartsock's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Hartsock reassigns Medicare benefits to 3 organizations: Indiana University Health Care Associates, Inc (Indianapolis, IN), University Family Physicians, Inc. (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 Stephen Hartsock's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Stephen Hartsock accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource and 2 other insurers list Stephen Hartsock 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 Stephen Hartsock affiliated with any hospitals?
According to CMS data, Stephen Hartsock is affiliated with Hendricks Regional Health, Indiana University Health and Iu Health West Hospital.
When was this NPI record last updated?
The NPPES record for Stephen Hartsock was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.