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THE ROCK MEDICAL CENTER
NPI 1326531534
Family Medicine in Little Rock, AR

Active since June 12, 2018
11521 W MARKHAM ST, LITTLE ROCK, AR 72211(501) 502-2765(501) 302-1991 Get Directions Write a Review

NPPES record last updated: November 13, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 13, 2024, Mar 4, 2021, Jun 12, 2018 (3 updates tracked since 2018).

About The Rock Medical Center NPPES

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

THE ROCK MEDICAL CENTER (NPI 1326531534) is a healthcare organization registered as a family medicine in Little Rock, Arkansas and active in the NPI registry since June 2018. The organization lists Peter Sidarous, Owner, as its authorized official.

NPPES Registry Identity

NPI1326531534
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameSIDAROUS, LLC
Location Address11521 W MARKHAM STLittle Rock, AR 72211-2701
Mailing Address11521 W Markham StLittle Rock, AR 72211-2701 · (501) 502-2765 · Fax (501) 302-1991
Phone(501) 502-2765
Fax(501) 302-1991
Organization SubpartNo
Authorized OfficialPeter SidarousOwner · (717) 319-9672
Enumeration DateJune 12, 2018
Last NPPES UpdateNovember 13, 20243 updates tracked since enumeration
NPPES CertifiedNovember 13, 2024
✔ NPI 1326531534 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in AR · E100-91
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.
11521 W MARKHAM ST, Little Rock, AR 72211
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Other Names 1

Doing Business AsThe Rock Medical Center

Other Identifiers 1

Medicaid219215001AR

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

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and more.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)

The Rock Medical Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to The Rock Medical Center, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (2)

Peter Sidarous, MD
Family Practice
NPI 1881072544
11521 W MARKHAM ST
Little Rock, AR 72211
(501) 502-2765
✔ PECOS✔ Accepts MedicareSame address
Sara Hanna, M.D.
Internal Medicine
NPI 1497986368
111 S FRONT ST
Harrisburg, PA 17101
(717) 782-3131
✔ PECOS✔ Accepts Medicare932 mi

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 Sidarous, LLC's NPI number?

The NPI number for Sidarous, LLC is 1326531534. It was assigned to this organization in the NPPES registry on June 12, 2018. The provider is doing business as The Rock Medical Center.

Where is Sidarous, LLC located?

Sidarous, LLC is located at 11521 W Markham St, Little Rock, AR 72211. The listed phone number is (501) 502-2765.

What is Sidarous, LLC's specialty?

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

Is Sidarous, LLC enrolled in Medicare?

Yes. Sidarous, LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sidarous, LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Sidarous, LLC, in Family Practice and Internal Medicine. 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. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Sidarous, LLC accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 7 other insurers list Sidarous, LLC 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 Sidarous, LLC was last updated on November 13, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 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.