Thomas Zastrow, PA-C
NPI 1679193460 · Physician Assistant · Belvidere, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Zastrow, PA-C is a Physician Assistant provider in Belvidere, IL (NPI 1679193460).
Provider details
- NPI number
- 1679193460
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 085.007982 (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 tenure33% of score
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 32 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 161 | 47 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 150 | 45 |
| Gabapentin | 125 | 49 |
| Tramadol Hcl | 110 | 36 |
| Pregabalin | 90 | 28 |
| Morphine Sulfatebrand: Morphine Sulfate Er | 83 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$603 across 25 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-21
- Last updated
- 2020-12-03
- Certified
- 2020-12-03
Frequently asked questions
- What is Thomas Zastrow's NPI number?
- Thomas Zastrow's National Provider Identifier (NPI) is 1679193460, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Zastrow's specialty?
- Thomas Zastrow is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Thomas Zastrow located?
- Thomas Zastrow's practice location on file with NPPES is 1663 Belvidere Rd, Belvidere, IL 61008-9306.
- What is Thomas Zastrow's phone number?
- The practice phone number listed in the NPPES registry for Thomas Zastrow is (815) 544-0040.
- Does Thomas Zastrow accept Medicare?
- Thomas Zastrow is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Zastrow's NPI active?
- Yes — Thomas Zastrow's NPI (1679193460) is active in the NPPES registry as of the last update on 2020-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.