CORNERSTONE FAMILY MEDICINE
NPI 1285902106
Family Medicine in Greer, SC

Active since December 06, 2011CLIA Certified · 2 labs
206A S MAIN ST, GREER, SC 29650(864) 989-0230(864) 334-1880 Get Directions Write a Review

NPPES record last updated: January 3, 2012. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Cornerstone Family Medicine NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CORNERSTONE FAMILY MEDICINE (NPI 1285902106) is a healthcare organization registered as a family medicine in Greer, South Carolina and active in the NPI registry since December 2011. The organization holds 2 active CLIA laboratory certificates and lists Brenda Klinger, Business Manager, as its authorized official.

NPPES Registry Identity

NPI1285902106
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameWARREN KEITH STAFFORD, M.D.
Location Address206A S MAIN STGreer, SC 29650-2127
Mailing Address8055 Wertman RdFogelsville, PA 18051-1820 · (484) 553-3286 · Fax (484) 214-0347
Fax(864) 334-1880
Organization SubpartNo
Authorized OfficialBrenda KlingerBusiness Manager · (484) 553-3286
Enumeration DateDecember 6, 2011
Last NPPES UpdateJanuary 3, 2012
NPI 1285902106 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in SC · 23690
Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

206A S MAIN ST, Greer, SC 29650

Other Names 1

Doing Business AsCornerstone Family Medicine

Other Identifiers 2

Medicaid236907SC
Medicare UPINE30388

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Accepted Insurance

CLIA Laboratory Certificates CMS CLIA 2

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 42D2340111

Cornerstone Family Medicine · Taylors, SC
Active · expires Mar 11, 2028
CLIA Number42D2340111
Laboratory TypePhysician Office
Certificate Effective DateMarch 12, 2026
Certificate Expiration DateMarch 11, 2028
Laboratory DirectorBrenda Klinger
Laboratory Phone(864) 989-0230
Laboratory LocationCornerstone Family Medicine68 St Mark Road, Taylors, SC 29687
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Certificate of Waiver 42D1044863

Cornerstone Family Medicine · Greer, SC
Active · expires Aug 29, 2027
CLIA Number42D1044863
Laboratory TypePhysician Office
Certificate Effective DateAugust 30, 2025
Certificate Expiration DateAugust 29, 2027
Laboratory DirectorBrenda J. Klinger
Laboratory Phone(864) 989-0230
Laboratory LocationCornerstone Family Medicine206-A South Main Street, Greer, SC 29650
CLIA data matches this NPI record on: Name Phone
This certificate is issued to a laboratory to perform only waived tests.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Family)
206A S MAIN ST
GREER, SC 29650
Family Medicine
206A S MAIN ST
GREER, SC 29650

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 Warren Keith Stafford, M.D.'s NPI number?

The NPI number for Warren Keith Stafford, M.D. is 1285902106. It was assigned to this organization in the NPPES registry on December 6, 2011. The provider is doing business as Cornerstone Family Medicine.

Where is Warren Keith Stafford, M.D. located?

Warren Keith Stafford, M.D. is located at 206A S Main St, Greer, SC 29650. The listed phone number is (864) 989-0230.

What is Warren Keith Stafford, M.D.'s specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Does Warren Keith Stafford, M.D. hold CLIA laboratory certificates?

Yes. 2 active CLIA laboratory certificates are associated with this NPI under the federal Clinical Laboratory Improvement Amendments program. The certificates are listed in the CLIA Laboratory Certificates section above.

What insurance does Warren Keith Stafford, M.D. accept?

Health plans from BlueCross BlueShield of South Carolina list Warren Keith Stafford, M.D. 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 Warren Keith Stafford, M.D. was last updated on January 3, 2012. NPI Profile syncs with the weekly NPPES data releases published by CMS.