JOHN L. HARSHBARGER M.D.
NPI 1174520449
Internal Medicine - Rheumatology in Wilmington, NC
About John L. Harshbarger M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN L. HARSHBARGER M.D. (NPI 1174520449) is an individual rheumatology provider in Wilmington, North Carolina, licensed in North Carolina (27053) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
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)
John L. Harshbarger M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Harshbarger reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Wilmington, NC 28401
- Reassigned Medicare billing, North Carolina enrollment
- Medicare enrollment name: Carolina Arthritis Associates PA
- 6 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 28401 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 John Harshbarger's NPI number?
The NPI number for John Harshbarger is 1174520449. It was assigned to this individual provider in the NPPES registry on July 1, 2005.
Where is John Harshbarger located?
John Harshbarger practices at 1710 S. 17th St., Wilmington, NC 28401. The listed phone number is (910) 762-1182.
What is John Harshbarger's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is John Harshbarger enrolled in Medicare?
Yes. John Harshbarger is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Harshbarger's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Harshbarger reassigns Medicare benefits to Carolina Arthritis Associates, P.A. (Wilmington, NC). The 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 John Harshbarger's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Harshbarger accept?
Health plans from Cigna Healthcare list John Harshbarger 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 John Harshbarger was last updated on December 18, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# John L. Harshbarger, M.D. · NPI 1174520449
Rheumatology physician in Wilmington, North Carolina. Individual provider, active in the CMS NPPES registry since July 1, 2005.
## Identity
- **NPI:** 1174520449 (Entity type: Individual)
- **Enumerated:** July 1, 2005
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 27053 (North Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 1710 S. 17TH ST., Wilmington, NC 28401-6442
- **Phone:** (910) 762-1182 · **Fax:** (910) 332-1111
## 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:** Carolina Arthritis Associates, P.A. (NPI 1427010081, Wilmington, NC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** December 18, 2009
- **Other identifiers:** Medicare UPIN C84375 (NC); Medicaid 8940168 (NC); Medicare PIN 207073C; and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1174520449) · Data from the CMS NPPES public registry.