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Active NPI 1669459384 Individual Practitioner Male Practitioner

Thaddeus Lis

Anesthesiology • Nassau Bay, TX

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Thaddeus Lis is a certified Anesthesiology practicing in Nassau Bay, TX. With approximately 38 years of clinical experience since graduating from Medical College Of Wisconsin in 1988, Thaddeus Lis delivers high-quality medical care to the local community at 18300 SAINT JOHN DR.

Thaddeus Lis is affiliated with U S Anesthesia Partners Of Texas, Pa and accepts Medicare assignment.

Frequently performed procedures and clinical services include anesthesia for procedure on large bowel using an endoscope, anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope, anesthesia for procedure on small and large bowel using an endoscope. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

18300 Saint John Dr

Nassau Bay, TX 770586302

Telephone 2813335503
Associated Practice Facility / Clinic
🏢 Christus Health Gulf Coast Facility NPI 1487656757

Medicare Profile & Education

Medical School

Medical College Of Wisconsin

Graduation Year

1988

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Anesthesiology in Nassau Bay, TX

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
38 Yrs -1.0 yrs vs City Avg
City Avg: 39.0 Yrs
State Avg: 24.9 Yrs
Regional Practice Density
5 Specialists

Practicing in Nassau Bay, TX (4818 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
93.5% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Lis (38 Years) 38 Yrs
Nassau Bay Specialty Average (39.0 Years) 39.0 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)
Reporting Year:
HCPCS Code & Description Services Patients Submitted Charge Medicare Allowed
00811 Anesthesia for procedure on large bowel using an endoscope
32 32 $1207.13 $87.51
00731 Anesthesia for procedure on esophagus, stomach, and/or upper small bowel using an endoscope
32 31 $1561.92 $105.87
00813 Anesthesia for procedure on small and large bowel using an endoscope
25 25 $1868.76 $129.11
01938 Anesthesia for injection, drainage or aspiration procedures on spine or spinal cord of lower back accessed through skin using imaging guidance
20 19 $1376.78 $94.14
00812 Anesthesia for exam of colon using an endoscope
14 14 $1305.00 $81.25
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand
11 11 $2088.00 $160.09
64415 Injection of anesthetic agent, brachial (arm) nerve bundle
11 11 $1904.00 $74.55

Medical Specialties & State Licenses

Anesthesiology Primary Specialty

NUCC Taxonomy Code: 207L00000X

State License TX K0896

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

Hospital & Practice Group Affiliations

U S Anesthesia Partners Of Texas, Pa

7600 Beechnut St, Houston, TX 770744302

Phone: 7136204000

U S Anesthesia Partners Of Texas, Pa

100 Medical Dr, Lake Jackson, TX 775665674

Phone: 7134967555

U S Anesthesia Partners Of Texas, Pa

18300 Houston Methodist Dr, Houston, TX 770586302

Phone: 2813335503

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

30 Associated Practitioners
Jessica Morales , ATC, LAT

Specialist/Technologist - Athletic Trainer

NPI 1003341603

Certified Athletic Trainer, Licensed Athletic Trainer

Keilea Bullard

Specialist/Technologist, Other

NPI 1013387190
Peace Irobi , NP

Nurse Practitioner - Gerontology

NPI 1033809041

Nurse Practitioner

Frank Becker , BS, MT(ASCP)

Specialist/Technologist, Pathology - Medical Technologist

NPI 1043407133

Bachelor of Science, MT(ASCP)

Maureen Opot

Pharmacist

NPI 1093566523
Mark Savrick

Anesthesiology

NPI 1104803824

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍
Updated Practice Location July 08, 2007

Registered at 18300 SAINT JOHN DR, NASSAU BAY, TX 770586302 (Tel: 2813335503)

📍
Updated Business Mailing Address July 08, 2007

Registered at 714 FM 1960 RD W, SUITE 206, HOUSTON, TX 770903405

👤
Provider Name / Credentials Updated July 08, 2007

Recorded as THADDEUS LIS

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Anesthesiology (License #K0896 in TX)

🟢
Initial NPI Registration & Enumeration December 22, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1669459384
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 22, 2005
Last Update: July 13, 2026
Sole Proprietor: No

Mailing Address

714 Fm 1960 Rd W, Suite 206

Houston, TX 770903405

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.