Doctor profile · Federal record

Dr. Thomas Zaiz, PA

Surgical Physician Assistant (CMS: Physician Assistant) · Glen Carbon, IL

  • NPI 1639223571
  • Accepts Medicare
  • 26 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
4804 S State Route 159 Ste 10
Glen Carbon, IL 620341904
(618) 391-5080
fax (618) 205-3569
Mailing address
6810 State Route 162, Box 215
Maryville, IL 62062

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
August 28, 2024
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
363AS0400X — NUCC code
State license (1)
Illinois #085001534

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639223571. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
238
Distinct HCPCS
4
Medicare allowed
$6,108
HCPCS Description Services Patients Avg allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 142 55 $1
20610 Aspiration and/or injection of fluid from large joint 54 51 $63
99213 Established patient office or other outpatient visit, 20-29 minutes 23 22 $77
73562 X-ray of knee, 3 views 19 19 $42

In context: peer comparison

Among 1 peers in this city , average services per provider: 59. This provider delivers 4.0× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
648
Patients
391
Total drug cost
$35,340
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 197 85 $1,606
Meloxicam Generic 105 32 $384
Eliquis (Apixaban) Brand 67 62 $29,706
Celecoxib Generic 56 48 $745
Cephalexin Generic 47 43 $492
Diclofenac Sodium Generic 40 14 $659
Tramadol Hcl Generic 39 23 $232
Doxycycline Hyclate Generic 31 29 $554
Methylprednisolone Generic 26 25 $249
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 24 16 $281

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Zaiz's medical specialty?
Dr. Thomas Zaiz practices Surgical Physician Assistant in Glen Carbon, IL.
Where does Dr. Thomas Zaiz practice?
Dr. Thomas Zaiz practices at 4804 S State Route 159 Ste 10, Glen Carbon, IL 620341904. Office phone: 6183915080.
What is Dr. Thomas Zaiz's NPI?
Dr. Thomas Zaiz's National Provider Identifier (NPI) is 1639223571, issued by NPPES.
Does Dr. Thomas Zaiz accept Medicare assignment?
Yes. Dr. Thomas Zaiz accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Zaiz commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Aspiration and/or injection of fluid from large joint (HCPCS 20610); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.