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CORNERSTONE INTERNAL MEDICINE, PLLC
NPI 1124353198
Internal Medicine in Cary, NC

Active since October 08, 2009
2703 JONES FRANKLIN RD, STE 101, CARY, NC 27518(919) 854-2006(919) 481-3637 Get Directions Write a Review

NPPES record last updated: February 12, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 12, 2020, Feb 5, 2016 (2 updates tracked since 2016).

About Cornerstone Internal Medicine, Pllc NPPES

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

CORNERSTONE INTERNAL MEDICINE, PLLC (NPI 1124353198) is a healthcare organization registered as an internal medicine in Cary, North Carolina and active in the NPI registry since October 2009. The organization lists Yu Liu, Physician, as its authorized official.

NPPES Registry Identity

NPI1124353198
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameCORNERSTONE INTERNAL MEDICINE, PLLC
Location Address2703 JONES FRANKLIN RD, STE 101Cary, NC 27518-7172
Mailing Address2703 Jones Franklin Rd, Ste 101Cary, NC 27518-7172 · (919) 854-2006 · Fax (919) 481-3637
Phone(919) 854-2006
Fax(919) 481-3637
Organization SubpartNo
Authorized OfficialYu LiuPhysician · (919) 854-2006
Enumeration DateOctober 8, 2009
Last NPPES UpdateFebruary 12, 20202 updates tracked since enumeration
✔ NPI 1124353198 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedClinic/Center · Primary CareTaxonomy 261QP2300X
2703 JONES FRANKLIN RD, Cary, NC 27518
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include AmeriHealth Caritas Next, Blue Cross and Blue Shield of NC.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cornerstone Internal Medicine, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Cornerstone Internal Medicine, PLLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Yu Liu, M.D.
Internal Medicine
NPI 1528137254
2703 JONES FRANKLIN RD STE 101
Cary, NC 27518
(919) 854-2006
✔ PECOS✔ Accepts MedicareSame address

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Cornerstone Internal Medicine, PLLC's NPI number?

The NPI number for Cornerstone Internal Medicine, PLLC is 1124353198. It was assigned to this organization in the NPPES registry on October 8, 2009.

Where is Cornerstone Internal Medicine, PLLC located?

Cornerstone Internal Medicine, PLLC is located at 2703 Jones Franklin Rd Ste 101, Cary, NC 27518. The listed phone number is (919) 854-2006.

What is Cornerstone Internal Medicine, PLLC's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Cornerstone Internal Medicine, PLLC enrolled in Medicare?

Yes. Cornerstone Internal Medicine, PLLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cornerstone Internal Medicine, PLLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Internal Medicine) reassigns their Medicare billing to Cornerstone Internal Medicine, PLLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Cornerstone Internal Medicine, PLLC accept?

Health plans from AmeriHealth Caritas Next and Blue Cross and Blue Shield of NC list Cornerstone Internal Medicine, PLLC 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 Cornerstone Internal Medicine, PLLC was last updated on February 12, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.