LEWIS CASS SOMMERVILLE III M.D.
NPI 1629299979
Radiology - Diagnostic Radiology in Asheville, NC
About Lewis Cass Sommerville Iii M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEWIS CASS SOMMERVILLE III M.D. (NPI 1629299979) is an individual diagnostic radiology provider in Asheville, North Carolina, licensed in North Carolina (2013-01195) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS, is affiliated with Margaret R Pardee Memorial Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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
Lewis Cass Sommerville Iii 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
4Medicare enrollment records show Lewis Sommerville reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Asheville, NC 28801
- Reassigned Medicare billing, North Carolina enrollment
- 84 clinicians in this Medicare group
Clyde, NC 28721
- Reassigned Medicare billing, North Carolina enrollment
- 456 clinicians in this Medicare group
Lenoir, NC 28645
- Reassigned Medicare billing, North Carolina enrollment
- 313 clinicians in this Medicare group
Boone, NC 28607
- Reassigned Medicare billing, North Carolina enrollment
- 207 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 62
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Margaret R Pardee Memorial Hospital
Acute Care Hospitals · Hendersonville, NCAdventhealth Hendersonville
Acute Care Hospitals · Hendersonville, NCWatauga Medical Center
Acute Care Hospitals · Boone, NCHaywood Regional Medical Center
Acute Care Hospitals · Clyde, NCSt Lukes Hospital
Critical Access Hospitals · Columbus, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 28802 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 7
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 Lewis Sommerville's NPI number?
The NPI number for Lewis Sommerville is 1629299979. It was assigned to this individual provider in the NPPES registry on May 2, 2007.
Where is Lewis Sommerville located?
Lewis Sommerville practices at PO Box 2959, Asheville, NC 28802. The listed phone number is (828) 693-0258.
What is Lewis Sommerville's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Lewis Sommerville enrolled in Medicare?
Yes. Lewis Sommerville 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 Lewis Sommerville's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lewis Sommerville reassigns Medicare benefits to 4 organizations: ARA Health Specialists PA (Asheville, NC), Dlp Western Carolina Physician Practices LLC (Clyde, NC), Caldwell Memorial Hospital, Inc. (Lenoir, NC) and Appalachian Regional Medical Associates, Inc. (Boone, NC). 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 Lewis Sommerville's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lewis Sommerville accept?
Health plans from Cigna Healthcare, Oscar Health Plan of North Carolina, Inc and Oscar Insurance Company list Lewis Sommerville 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 Lewis Sommerville affiliated with any hospitals?
According to CMS data, Lewis Sommerville is affiliated with Margaret R Pardee Memorial Hospital, Adventhealth Hendersonville, Watauga Medical Center, Haywood Regional Medical Center and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Lewis Sommerville was last updated on September 24, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.