NPPES file of Aug 9, 2026

Thomas Zaiz, PA

Surgical Physician Assistant · Glen Carbon, IL

Thomas Zaiz, PA is a surgical physician assistant with a practice address in Glen Carbon, Illinois, and NPI 1639223571, issued on Jan 22, 2007. Check the license (Illinois 085001534, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639223571
Name
Thomas Zaiz
Credential
PA
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
085001534 IL
Self-reported in NPPES; status is on the state search
Practice location
4804 S State Route 159 Ste 10, Glen Carbon, IL 62034
Phone
(618) 391-5080
Enumerated
Jan 22, 2007
Record last updated
Aug 28, 2024
Fax
(618) 205-3569
Medicare enrollment
Enrolled (PECOS I20041105000934); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4804 S State Route 159 Ste 10

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Peter Anderson, MDOrthopaedic Surgery Physician1548245848
  2. Paul Scherer, MDOrthopaedic Surgery Physician1881679181

Verify Thomas Zaiz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 085001534
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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53% more Medicare Part D claims than the average surgical physician assistant in 2024

466 Medicare Part D claims for 144 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 181 claims were for opioids.

  1. Thomas Zaiz466
  2. Specialty average304

Most prescribed

  1. Oxycodone Hcl125 claims
  2. Meloxicam79 claims
  3. Celecoxib45 claims
  4. Tramadol Hcl36 claims
  5. Diclofenac Sodium32 claims
  6. Eliquis28 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Bills Medicare through one group practice

  1. Anderson Medical Group LLCMaryville, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Surgical Physician Assistant providers in Illinois

There are 599 surgical physician assistant records in Illinois.

Other surgical physician assistant records in Illinois

  1. Deena AbouseduMokena, IL1538921952
  2. Khaled AboushaalaMokena, IL1659226306
  3. David Agbunag, PA-CChicago, IL1093885188
  4. Elizabeth Ahlgrimm, PA-CEvanston, IL1518376680
  5. James Alex, MBBS,CSFAPeoria, IL1841690096
  6. Anita Alexander, PAEvanston, IL1700087368
  7. Antonio Alferez, PA-CChicago, IL1144349234
  8. Danielle Amato, PA-COak Lawn, IL1326278284
  9. Nicole Ambrogio, PA-CBartlett, IL1366303984
  10. Kelly Ambrosius, CST,CFA,RSAWadsworth, IL1932322815

Common questions

What is Thomas Zaiz, PA's NPI number?

Thomas Zaiz, PA's National Provider Identifier (NPI) is 1639223571, issued on Jan 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Zaiz, PA located?

The NPPES record lists a practice address at 4804 S State Route 159 Ste 10, Glen Carbon, IL, 62034. Phone: (618) 391-5080. Providers update this record themselves, so call before visiting.

How can I verify Thomas Zaiz, PA's license?

NPPES lists Illinois license number 085001534, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas Zaiz, PA prescribe under Medicare Part D?

In 2024, Thomas Zaiz, PA had 466 Medicare Part D claims for 144 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.