DR. STEPHEN HARRIS KEISER MD
NPI 1659307007
Family Medicine in Greenville, SC
About Dr. Stephen Harris Keiser Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN HARRIS KEISER MD (NPI 1659307007) is an individual family medicine provider in Greenville, South Carolina, licensed in South Carolina (21254) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Prisma Health Greenville Memorial Hospital, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
Other Identifiers 5
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Stephen Harris Keiser 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.
Areas of Expertise CMS Part B claims 11
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Prisma Health Greenville Memorial Hospital
Acute Care Hospitals · Greenville, SCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 29605 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Stephen Keiser's NPI number?
The NPI number for Stephen Keiser is 1659307007. It was assigned to this individual provider in the NPPES registry on June 25, 2006.
Where is Stephen Keiser located?
Stephen Keiser practices at 15 Park Creek Dr, Greenville, SC 29605. The listed phone number is (864) 271-7761.
What is Stephen Keiser's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Stephen Keiser enrolled in Medicare?
Yes. Stephen Keiser 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.
What insurance does Stephen Keiser accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, BlueCross BlueShield of South Carolina and InStil Health list Stephen Keiser 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 Stephen Keiser affiliated with any hospitals?
According to CMS data, Stephen Keiser is affiliated with Prisma Health Greenville Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Stephen Keiser was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
