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CHRISTOS KATSIGIANNIS MD PA
NPI 1477919322
Thoracic Surgery (Cardiothoracic Vascular Surgery) in Houston, TX

Active since January 07, 2016
427 W 20TH ST STE 300, HOUSTON, TX 77008(713) 838-2300(713) 791-1710 Get Directions Write a Review

NPPES record last updated: July 13, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Christos Katsigiannis Md Pa NPPES

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

CHRISTOS KATSIGIANNIS MD PA (NPI 1477919322) is a healthcare organization registered as a thoracic surgery (cardiothoracic vascular surgery) in Houston, Texas and active in the NPI registry since January 2016. The organization lists Christos Argirios Katsigiannis, Owner/m.d., as its authorized official.

NPPES Registry Identity

NPI1477919322
Entity TypeOrganization
Primary Taxonomy208G00000X
Legal Business NameCHRISTOS KATSIGIANNIS MD PA
Location Address427 W 20TH ST STE 300Houston, TX 77008-2429
Mailing Address427 W 20th St Ste 300Houston, TX 77008-2429 · (713) 838-2300 · Fax (713) 791-1710
Phone(713) 838-2300
Fax(713) 791-1710
Organization SubpartNo
Authorized OfficialChristos Argirios KatsigiannisOwner/m.d. · (713) 838-2300
Enumeration DateJanuary 7, 2016
Last NPPES UpdateJuly 13, 2021
NPPES CertifiedJuly 13, 2021
✔ NPI 1477919322 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyThoracic Surgery (Cardiothoracic Vascular Surgery)Allopathic & Osteopathic Physicians
Taxonomy Code208G00000X
Definition
A thoracic surgeon provides the operative, perioperative and critical care of patients with pathologic conditions within the chest. Included is the surgical care of coronary artery disease, cancers of the lung, esophagus and chest wall, abnormalities of the trachea, abnormalities of the great vessels and heart valves, congenital anomalies, tumors of the mediastinum and diseases of the diaphragm. The management of the airway and injuries of the chest is within the scope of the specialty.
427 W 20TH ST STE 300, Houston, TX 77008
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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)

Christos Katsigiannis Md Pa 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 Christos Katsigiannis MD PA, which bills Medicare for the services this clinician delivers.

Clinician (1)

Christos Katsigiannis, MD
Thoracic Surgery
NPI 1194725234
427 W 20TH ST STE 300
Houston, TX 77008
(713) 791-1633
✔ 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 Christos Katsigiannis MD PA's NPI number?

The NPI number for Christos Katsigiannis MD PA is 1477919322. It was assigned to this organization in the NPPES registry on January 7, 2016.

Where is Christos Katsigiannis MD PA located?

Christos Katsigiannis MD PA is located at 427 W 20th St Ste 300, Houston, TX 77008. The listed phone number is (713) 838-2300.

What is Christos Katsigiannis MD PA's specialty?

The primary specialty registered for this NPI is Thoracic Surgery (Cardiothoracic Vascular Surgery) with taxonomy code 208G00000X.

Is Christos Katsigiannis MD PA enrolled in Medicare?

Yes. Christos Katsigiannis MD PA is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Christos Katsigiannis MD PA?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Thoracic Surgery) reassigns their Medicare billing to Christos Katsigiannis MD PA. 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.

When was this NPI record last updated?

The NPPES record for Christos Katsigiannis MD PA was last updated on July 13, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.