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CARDIAC INTERVENTION SPECIALISTS, P.A.
NPI 1023204567
Internal Medicine - Cardiovascular Disease in Houston, TX

Active since September 19, 2007CLIA 45D1028941 · Waiver
2222 GREENHOUSE RD STE 600, HOUSTON, TX 77084(832) 230-5065(281) 579-1709 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Cardiac Intervention Specialists, P.a. NPPES

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

CARDIAC INTERVENTION SPECIALISTS, P.A. (NPI 1023204567) is a healthcare organization registered as a cardiovascular disease in Houston, Texas and active in the NPI registry since September 2007. The organization holds a CLIA Waiver certificate valid through August 4, 2028 and lists Ladonna Thomas, Billing Manager, as its authorized official.

NPPES Registry Identity

NPI1023204567
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameCARDIAC INTERVENTION SPECIALISTS, P.A.
Location Address2222 GREENHOUSE RD STE 600Houston, TX 77084-7289
Mailing Address2222 Greenhouse Rd, Suite 600Houston, TX 77084-7252 · (832) 230-5065 · Fax (281) 579-1709
Phone(832) 230-5065
Fax(281) 579-1709
Organization SubpartNo
Authorized OfficialLadonna ThomasBilling Manager · (832) 230-5065
Enumeration DateSeptember 19, 2007
Last NPPES UpdateJune 24, 2026
NPPES CertifiedJune 24, 2026
✔ NPI 1023204567 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License✔ Licensed in TX · J6497
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
2222 GREENHOUSE RD STE 600, Houston, TX 77084
Open in Google Maps ↗

Other Identifiers 3

Other0037GWTX · Bcbs
Other00758RTX · Railroad Medicare
Medicaid147419901TX

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

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cardiac Intervention Specialists, P.a. 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 Cardiac Intervention Specialists, P.A., which bills Medicare for the services this clinician delivers.

Clinician (1)

Irfan Iftikhar, MD
Interventional Cardiology
NPI 1851357248
2222 GREENHOUSE RD STE 600
Houston, TX 77084
(832) 230-5065
✔ 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.

CLIA Laboratory Certificates CMS CLIA

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 45D1028941

Cardiac Intervention Specialists, PA · Houston, TX
Active · expires Aug 4, 2028
CLIA Number45D1028941
Laboratory TypePhysician Office
Certificate Effective DateAugust 5, 2026
Certificate Expiration DateAugust 4, 2028
Laboratory DirectorIrfan Iftikhar MD
Laboratory Phone(281) 646-9911
Laboratory LocationCardiac Intervention Specialists, PA2222 Greenhouston Bldg #600, Houston, TX 77084
CLIA data matches this NPI record on: Name
This certificate is issued to a laboratory to perform only waived tests.

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 Cardiac Intervention Specialists, P.A.'s NPI number?

The NPI number for Cardiac Intervention Specialists, P.A. is 1023204567. It was assigned to this organization in the NPPES registry on September 19, 2007.

Where is Cardiac Intervention Specialists, P.A. located?

Cardiac Intervention Specialists, P.A. is located at 2222 Greenhouse Rd Ste 600, Houston, TX 77084. The listed phone number is (832) 230-5065.

What is Cardiac Intervention Specialists, P.A.'s specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Cardiac Intervention Specialists, P.A. enrolled in Medicare?

Yes. Cardiac Intervention Specialists, P.A. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Cardiac Intervention Specialists, P.A.?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Interventional Cardiology) reassigns their Medicare billing to Cardiac Intervention Specialists, P.A.. 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.

Does Cardiac Intervention Specialists, P.A. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 45D1028941) is associated with this NPI, valid through August 4, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Cardiac Intervention Specialists, P.A. was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.