WILLIAM WALLACE HAMMILL MD
NPI 1659382059
Pediatrics - Pediatric Cardiology in Charlotte, NC
About William Wallace Hammill Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM WALLACE HAMMILL MD (NPI 1659382059) is an individual pediatric cardiology provider in Charlotte, North Carolina, licensed in North Carolina (2009-00188) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Medical University Of South Carolina College Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
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
William Wallace Hammill 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
8Medicare enrollment records show William Hammill reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Charlotte, NC 28204
- Reassigned Medicare billing, North Carolina enrollment
- 2,998 clinicians in this Medicare group
Charlotte, NC 28204
- Reassigned Medicare billing, North Carolina enrollment
- 926 clinicians in this Medicare group
Matthews, NC 28105
- Reassigned Medicare billing, North Carolina enrollment
- 649 clinicians in this Medicare group
Charlotte, NC 28215
- Reassigned Medicare billing, North Carolina enrollment
- 703 clinicians in this Medicare group
Salisbury, NC 28144
- Reassigned Medicare billing, North Carolina enrollment
- 686 clinicians in this Medicare group
Statesville, NC 28625
- Reassigned Medicare billing, North Carolina enrollment
- 1,202 clinicians in this Medicare group
Clemmons, NC 27012
- Reassigned Medicare billing, North Carolina enrollment
- 719 clinicians in this Medicare group
Bolivia, NC 28422
- Reassigned Medicare billing, North Carolina enrollment
- 639 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.
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.
CHARLOTTE, NC 28204
CHARLOTTE, NC 28204
CHARLOTTE, NC 28204
CHARLOTTE, NC 28204
CHARLOTTE, NC 28204
CHARLOTTE, NC 28204
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 William Hammill's NPI number?
The NPI number for William Hammill is 1659382059. It was assigned to this individual provider in the NPPES registry on August 10, 2006.
Where is William Hammill located?
William Hammill practices at 1718 E 4th St Suite 401, Charlotte, NC 28204. The listed phone number is (704) 316-1220.
What is William Hammill's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.
Is William Hammill enrolled in Medicare?
Yes. William Hammill 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 William Hammill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Hammill reassigns Medicare benefits to 8 organizations: Novant Health Medical Group, LLC (Charlotte, NC), The Presbyterian Hospital (Charlotte, NC), Novant Health Matthews Medical Center LLC (Matthews, NC), Novant Health Mint Hill Medical Center, LLC (Charlotte, NC), Novant Health Rowan Medical Center LLC (Salisbury, NC) and 3 more organizations, 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 William Hammill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Hammill accept?
Health plans from Blue Cross and Blue Shield of NC and Cigna Healthcare list William Hammill 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 William Hammill was last updated on October 28, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# William Wallace Hammill, MD · NPI 1659382059
Pediatric Cardiology physician in Charlotte, North Carolina. Individual provider, active in the CMS NPPES registry since August 10, 2006.
## Identity
- **NPI:** 1659382059 (Entity type: Individual)
- **Enumerated:** August 10, 2006
- **Primary specialty:** Pediatrics - Pediatric Cardiology · taxonomy 2080P0202X
- **State license:** 2009-00188 (North Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 1718 E 4TH ST, SUITE 401, Charlotte, NC 28204-3261
- **Phone:** (704) 316-1220 · **Fax:** (704) 316-1230
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Novant Health Medical Group, LLC (NPI 1083959282, Charlotte, NC); The Presbyterian Hospital (NPI 1740169820, Charlotte, NC); Novant Health Matthews Medical Center LLC (NPI 1184782419, Matthews, NC); Novant Health Mint Hill Medical Center, LLC (NPI 1063910404, Charlotte, NC); Novant Health Rowan Medical Center LLC (NPI 1508931544, Salisbury, NC); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 1989
## Record status
- **NPPES last updated:** October 28, 2020
- **Other identifiers:** Other 1515J (NC)
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Source: [NPI Profile](https://npiprofile.com/npi/1659382059) · Data from the CMS NPPES public registry.