GREG J JUN MD
NPI 1043212780
Internal Medicine in The Villages, FL
About Greg J Jun Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GREG J JUN MD (NPI 1043212780) is an individual internal medicine provider in The Villages, Florida, licensed in Florida (ME144859) and active in the NPI registry since August 2005. He is enrolled in Medicare PECOS, maintains a secondary practice location in The Villages, and is a graduate of Northwestern University Feinberg Medical School (1997).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Greg J Jun 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
5Medicare enrollment records show Greg Jun reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
The Villages, FL 32163
- Reassigned Medicare billing, Florida enrollment
- 167 clinicians in this Medicare group
The Villages, FL 32163
- Reassigned Medicare billing, Florida enrollment
- 167 clinicians in this Medicare group
Pekin, IL 61554
- Reassigned Medicare billing, Illinois enrollment
- 142 clinicians in this Medicare group
Ottawa, IL 61350
- Reassigned Medicare billing, Illinois enrollment
- 233 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 1,664 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 32163 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 19
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
THE VILLAGES, FL 32163
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 Greg Jun's NPI number?
The NPI number for Greg Jun is 1043212780. It was assigned to this individual provider in the NPPES registry on August 12, 2005.
Where is Greg Jun located?
Greg Jun practices at 779 Kristine Way, The Villages, FL 32163. The listed phone number is (352) 674-6020.
What is Greg Jun's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Greg Jun enrolled in Medicare?
Yes. Greg Jun 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 Greg Jun's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Greg Jun reassigns Medicare benefits to 5 organizations: Centerwell Senior Primary Care Vitality Inc (The Villages, FL), The Villages Health System LLC (The Villages, FL), Pekin Prohealth Inc (Pekin, IL), 24 On Physicians, PC (Ottawa, IL) and Central Dupage Physician Group (Carol Stream, IL). 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 Greg Jun'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 Greg Jun was last updated on August 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Greg J Jun, MD · NPI 1043212780
Internal Medicine physician in The Villages, Florida. Individual provider, active in the CMS NPPES registry since August 12, 2005.
## Identity
- **NPI:** 1043212780 (Entity type: Individual)
- **Enumerated:** August 12, 2005
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** ME144859 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 779 KRISTINE WAY, The Villages, FL 32163-0099
- **Phone:** (352) 674-6020 · **Fax:** (352) 674-6030
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Centerwell Senior Primary Care Vitality Inc (NPI 1154293108, The Villages, FL); The Villages Health System LLC (NPI 1699012922, The Villages, FL); Pekin Prohealth Inc (NPI 1932150299, Pekin, IL); 24 On Physicians, PC (NPI 1346480431, Ottawa, IL); Central Dupage Physician Group (NPI 1033149844, Carol Stream, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Northwestern University Feinberg Medical School, class of 1997
## Record status
- **NPPES last updated:** August 15, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1043212780) · Data from the CMS NPPES public registry.