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NPISignal

Individual Healthcare Provider

Michael P Siegenthaler, MD

NPI Record: ActiveThoracic Surgery (Cardiothoracic Vascular Surgery)
NPI1093863532
Longview, Texas

Provider's NPPES record last updated: March 25, 2026

Overview

Entity Type
Individual Healthcare Provider
NPI
1093863532
Primary Specialty
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Practice Location
Longview, Texas
Sole Proprietor
No

Federal Screening

NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.

List of Excluded Individuals/Entities (LEIE)

HHS Office of Inspector General

No potential match identified

No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.

Source data
September 10, 2026
Records indexed
84,001
Screened
Sep 21, 2026, 4:56 PM UTC

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

SAM.gov Exclusions

U.S. General Services Administration

Not checked

SAM.gov Exclusions was not checked.

SAM.gov screening is not configured on this deployment. No SAM check has been performed.

Screened
Not checked

This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.

This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.

Run a name-based screening

Searches OIG LEIE and SAM.gov by name and reviews every potential match.

Specialties & Taxonomies

  • Thoracic Surgery (Cardiothoracic Vascular Surgery)

    Allopathic & Osteopathic Physicians

    Primary

    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.

    Taxonomy code 208G00000X
  • Surgery

    Allopathic & Osteopathic Physicians

    A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

    Taxonomy code 208600000X

Provider-Reported License Information

Thoracic Surgery (Cardiothoracic Vascular Surgery) (Connecticut)
036842
Thoracic Surgery (Cardiothoracic Vascular Surgery) (Maryland)
D0068474
Surgery (Texas)
L2653
Thoracic Surgery (Cardiothoracic Vascular Surgery) (Pennsylvania)
MD430302
Thoracic Surgery (Cardiothoracic Vascular Surgery) (Texas)
L2653
License numbers are reported by the provider to NPPES and are not independently verified by NPISignal against any state licensing board. Confirm current license status directly with the issuing state board.

Practice Locations

Practice Location

705 E Marshall Ave

Longview, Texas 75601-5573

Phone: (903) 315-2777

Additional Practice Location

263 Farmington Ave

Farmington, Connecticut 06030-8063

Phone: (860) 679-3343

Fax: (860) 679-4256

Additional Practice Location

30 W Mccreight Ave Ste 106

Springfield, Ohio 45504-1853

Phone: (937) 523-9825

Fax: (937) 523-9829

Additional Practice Location

707 E Marshall Ave

Longview, Texas 75601-5545

Phone: (903) 315-4880

Additional Practice Location

8600 Old Georgetown Rd

Bethesda, Maryland 20814-1422

Phone: (301) 896-7610

Fax: (301) 896-7626

Additional Practice Location

2604 Saint Michael Dr Ste 425

Texarkana, Texas 75503-2378

Phone: (903) 614-5600

Record Information

Enumeration Date
January 8, 2007
Provider's NPPES Record Last Updated
March 25, 2026
Certification Date
March 25, 2026
NPISignal NPPES Dataset
August 2026

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