DR. JOAN LEGREE SHEMWELL M.D.
NPI 1609921758
Internal Medicine in Indianapolis, IN
About Dr. Joan Legree Shemwell M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOAN LEGREE SHEMWELL M.D. (NPI 1609921758) is an individual internal medicine provider in Indianapolis, Indiana, licensed in Kentucky (23426) and active in the NPI registry since January 2007. She is enrolled in Medicare PECOS and is a graduate of Tulane University School Of Medicine (1981).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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. Joan Legree Shemwell M.d. 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
6Medicare enrollment records show Joan Shemwell reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46204
- Reassigned Medicare billing, Kentucky enrollment
- 86 clinicians in this Medicare group
Columbus, IN 47201
- Reassigned Medicare billing, Kentucky enrollment
- 114 clinicians in this Medicare group
Merrillville, IN 46410
- Reassigned Medicare billing, Kentucky enrollment
- 145 clinicians in this Medicare group
Lexington, KY 40504
- Reassigned Medicare billing, Kentucky enrollment
- 66 clinicians in this Medicare group
Concord, NC 28025
- Reassigned Medicare billing, Kentucky enrollment
- 65 clinicians in this Medicare group
Columbia, MD 21045
- Reassigned Medicare billing, Kentucky enrollment
- 100 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 12
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 46203 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 14
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
INDIANAPOLIS, IN 46203
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 Joan Shemwell's NPI number?
The NPI number for Joan Shemwell is 1609921758. It was assigned to this individual provider in the NPPES registry on January 25, 2007.
Where is Joan Shemwell located?
Joan Shemwell practices at 3834 S Emerson Ave Ste 100, Indianapolis, IN 46203. The listed phone number is (317) 782-1577.
What is Joan Shemwell's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Joan Shemwell enrolled in Medicare?
Yes. Joan Shemwell 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 Joan Shemwell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Joan Shemwell reassigns Medicare benefits to 6 organizations: Eventus Ecs, Inc (Indianapolis, IN), Eventus Wholehealth Midwest Inc (Columbus, IN), Extended Care Specialists, Inc (Merrillville, IN), Eventus Ecs - Kentucky, PLLC (Lexington, KY), Eventus Wh Midwest Care, LLC (Concord, NC) and 1 more organization, listed in the Medicare section above. 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 Joan Shemwell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Joan Shemwell was last updated on July 24, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.