Thomas Zaiz, PA
NPI 1639223571 · Surgical Physician Assistant · Glen Carbon, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Zaiz, PA is a Surgical Physician Assistant provider in Glen Carbon, IL (NPI 1639223571).
Provider details
- NPI number
- 1639223571
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Male
- Sole proprietor
- No
- License
- 085001534 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
513 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 153 | $65 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 131 | $75 |
| X-Ray of Knee, 3 Views73562 | 81 | $43 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 46 | $46 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 32 | $93 |
| X-Ray of Hip, 2-3 Views73502 | 22 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 125 | 51 |
| Meloxicam | 79 | 30 |
| Celecoxib | 45 | 32 |
| Tramadol Hcl | 36 | 14 |
| Diclofenac Sodium | 32 | 12 |
| Apixabanbrand: Eliquis | 28 | 27 |
| Cefdinir | 24 | 24 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-22
- Last updated
- 2024-08-28
- Certified
- 2024-08-28
Frequently asked questions
- What is Thomas Zaiz's NPI number?
- Thomas Zaiz's National Provider Identifier (NPI) is 1639223571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Zaiz's specialty?
- Thomas Zaiz is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Thomas Zaiz located?
- Thomas Zaiz's practice location on file with NPPES is 4804 S State Route 159 Ste 10, Glen Carbon, IL 62034-1904.
- What is Thomas Zaiz's phone number?
- The practice phone number listed in the NPPES registry for Thomas Zaiz is (618) 391-5080.
- Does Thomas Zaiz accept Medicare?
- Thomas Zaiz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Zaiz's NPI active?
- Yes — Thomas Zaiz's NPI (1639223571) is active in the NPPES registry as of the last update on 2024-08-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.