DR. JOHN MARK WILLIAMS MD
NPI 1700869401
Surgery in Greenville, NC
About Dr. John Mark Williams Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. JOHN MARK WILLIAMS MD (NPI 1700869401) is an individual surgery provider in Greenville, North Carolina, licensed in North Carolina (29190) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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)
Dr. John Mark Williams Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show John Williams reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Greenville, NC 27834
- Reassigned Medicare billing, North Carolina enrollment
- 1,653 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 27834 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
GREENVILLE, NC 27834
GREENVILLE, NC 27834
GREENVILLE, NC 27834
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 Williams's NPI number?
The NPI number for John Williams is 1700869401. It was assigned to this individual provider in the NPPES registry on November 28, 2005.
Where is John Williams located?
John Williams practices at 115 Heart Dr, Greenville, NC 27834. The listed phone number is (252) 744-4400.
What is John Williams's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is John Williams enrolled in Medicare?
Yes. John Williams is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for John Williams's services?
According to the CMS Revalidation Reassignment List (October 2026 release), John Williams reassigns Medicare benefits to Vidant Medical Group LLC (Greenville, 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 Williams's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does John Williams accept?
Health plans from Cigna Healthcare list John Williams 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 Williams was last updated on July 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Dr. John Mark Williams, MD · NPI 1700869401
Surgery physician in Greenville, North Carolina. Individual provider, active in the CMS NPPES registry since November 28, 2005.
## Identity
- **NPI:** 1700869401 (Entity type: Individual)
- **Enumerated:** November 28, 2005
- **Primary specialty:** Surgery · taxonomy 208600000X
- **State license:** 29190 (North Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 115 HEART DR, Greenville, NC 27834-8982
- **Phone:** (252) 744-4400 · **Fax:** (252) 744-3987
## 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:** Vidant Medical Group LLC (NPI 1477648731, Greenville, NC), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 9, 2025
- **Other identifiers:** Other 87766 (NC); Medicaid 8987766 (NC); Other 330004173 (NC)
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Source: [NPI Profile](https://npiprofile.com/npi/1700869401) · Data from the CMS NPPES public registry.