Individual provider

Harry Kourlis, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Medicare enrolled

Harry Kourlis, MD is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Texarkana, TX, registered under NPI 1902865678.

Getting there

The practice address on file is 2604 SAINT MICHAEL DR STE 425, Texarkana, TX 75503. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

2604 SAINT MICHAEL DR STE 425, Texarkana, TX 75503 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
J2453 TX Thoracic Surgery (Cardiothoracic Vascular… primary
261617 MA Thoracic Surgery (Cardiothoracic Vascular…
E11786 AR Thoracic Surgery (Cardiothoracic Vascular…
35.122089 OR Thoracic Surgery (Cardiothoracic Vascular…
122089 OH Thoracic Surgery (Cardiothoracic Vascular…
35.122089 OH Thoracic Surgery (Cardiothoracic Vascular…
MD60593168 WA Thoracic Surgery (Cardiothoracic Vascular…

Licences are recorded in 6 states: TX, MA, AR, OR, OH, WA. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Cardiac Surgery
PAC ID
9133315294

Enrolled in Medicare 3 times, across 3 states:

StateEnrollment IDProvider type
Texas I20120111000504 Practitioner - Cardiac Surgery
Ohio I20131210000989 Practitioner - Thoracic Surgery
Alabama I20171004000083 Practitioner - Thoracic Surgery

Medicare enrolment is recorded as approved under the provider type Practitioner - Cardiac Surgery. There are 3 separate enrolment records across 3 states (TX, OH, AL). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

Licensed in 6 states

This provider holds licences in 6 states: Arkansas, Massachusetts, Ohio, Oregon, Texas and Washington. The practice address on file is in Texarkana, TX, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.

AR Arkansas
Licence
E11786
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the AR board →
MA Massachusetts
Licence
261617
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the MA board →
OH Ohio
Licence
122089
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the OH board →
OR Oregon
Licence
35.122089
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the OR board →
TX Texas practice address
Licence
J2453
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the TX board →
WA Washington
Licence
MD60593168
Specialty
Thoracic Surgery (Cardiothoracic…
Verify with the WA board →

Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.

What Thoracic Surgery (Cardiothoracic Vascular Surgery) covers

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. NUCC Health Care Provider Taxonomy, code 208G00000X
Allopathic & Osteopathic Physicians Thoracic Surgery (Cardiothoracic Vascular Surgery)

All registered taxonomy codes

This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician J2453 TX primary
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 261617 MA
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician E11786 AR
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 35.122089 OR
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 122089 OH
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 35.122089 OH
208G00000X Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician MD60593168 WA

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1902865678 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMar 21, 2006
Last updatedMar 26, 2026
StatusActive
Sole proprietorNo
CredentialMD
Practice address 2604 SAINT MICHAEL DR STE 425
Texarkana, TX 75503
(903) 614-5630
Other identifiers 127405201 · Medicaid (TX)
This record was updated on Mar 26, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1902865678 passes the NPI check digit test The final digit 8 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 9 0 2 8 6 5 6 7
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 9 0 2 7 6 1 6 5

Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1902865678?
NPI 1902865678 is the National Provider Identifier assigned to Harry Kourlis, MD in Texarkana, TX. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician cover?
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…
How do I contact Harry Kourlis, MD?
The phone number on file with NPPES is (903) 614-5630, last updated Mar 26, 2026. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Harry Kourlis, MD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1902865678 a valid number?
Yes. 1902865678 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.