DR. MARK ALLEN LIJEWSKI MD
NPI 1487625471
Internal Medicine - Gastroenterology in Spartanburg, SC
About Dr. Mark Allen Lijewski Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK ALLEN LIJEWSKI MD (NPI 1487625471) is an individual gastroenterology provider in Spartanburg, South Carolina, licensed in South Carolina (19685) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Spartanburg Medical Center, and is a graduate of Virginia Commonwealth University, School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 5
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
Dr. Mark Allen Lijewski 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 Reassignment
Medicare enrollment records show Mark Lijewski reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Spartanburg, SC 29303
- Reassigned Medicare billing, South Carolina enrollment
- Also billed through NPI 1760423503 (South Carolina)
- 814 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 16
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Spartanburg Medical Center
Acute Care Hospitals · Spartanburg, SCCherokee Medical Center
Acute Care Hospitals · Gaffney, SCPelham Medical Center
Acute Care Hospitals · Greer, SCUnion Medical Center
Acute Care Hospitals · Union, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29303 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.
SPARTANBURG, SC 29303
SPARTANBURG, SC 29303
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 Mark Lijewski's NPI number?
The NPI number for Mark Lijewski is 1487625471. It was assigned to this individual provider in the NPPES registry on January 30, 2006.
Where is Mark Lijewski located?
Mark Lijewski practices at 853 N Church St Suite 620, Spartanburg, SC 29303. The listed phone number is (864) 560-1674.
What is Mark Lijewski's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Mark Lijewski enrolled in Medicare?
Yes. Mark Lijewski 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 organization bills Medicare for Mark Lijewski's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lijewski reassigns Medicare benefits to Spartanburg Medical Center (Spartanburg, SC). 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 Mark Lijewski's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Lijewski accept?
Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and First Choice Next and 3 other insurers list Mark Lijewski 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 Mark Lijewski affiliated with any hospitals?
According to CMS data, Mark Lijewski is affiliated with Spartanburg Medical Center, Cherokee Medical Center, Pelham Medical Center and Union Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Lijewski was last updated on February 4, 2021. 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.