DR. CYNTHIA S SIKORSKI MD
NPI 1366422313
Internal Medicine in North Charleston, SC
About Dr. Cynthia S Sikorski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CYNTHIA S SIKORSKI MD (NPI 1366422313) is an individual internal medicine provider in North Charleston, South Carolina, licensed in South Carolina (22885) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Cynthia S Sikorski Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Cynthia Sikorski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 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 29405 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
NORTH CHARLESTON, SC 29405
NORTH CHARLESTON, SC 29405
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 Cynthia Sikorski's NPI number?
The NPI number for Cynthia Sikorski is 1366422313. It was assigned to this individual provider in the NPPES registry on January 18, 2006.
Where is Cynthia Sikorski located?
Cynthia Sikorski practices at 3600 Rivers Ave, North Charleston, SC 29405. The listed phone number is (843) 743-7000.
What is Cynthia Sikorski's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Cynthia Sikorski enrolled in Medicare?
Yes. Cynthia Sikorski is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Cynthia Sikorski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cynthia Sikorski reassigns Medicare benefits to Sharp Rees-Stealy Medical Group, Inc (San Diego, CA). 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 Cynthia Sikorski'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 Cynthia Sikorski was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Cynthia S Sikorski, MD · NPI 1366422313
Internal Medicine physician in North Charleston, South Carolina. Individual provider, active in the CMS NPPES registry since January 18, 2006.
## Identity
- **NPI:** 1366422313 (Entity type: Individual)
- **Enumerated:** January 18, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 22885 (South Carolina)
- **Sole proprietor:** No
## Practice location
- **Address:** 3600 RIVERS AVE, North Charleston, SC 29405-7747
- **Phone:** (843) 743-7000
## 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:** Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 13, 2026
- **Other identifiers:** Medicaid 228854 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1366422313) · Data from the CMS NPPES public registry.