Alexander Trenk, MD
NPI 1508359936 · Vascular Surgery Physician · Arlington Heights, IL
Enrolled with Medicare as Practitioner - Vascular Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Trenk, MD is a Vascular Surgery Physician provider in Arlington Heights, IL (NPI 1508359936).
Provider details
- NPI number
- 1508359936
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036176334 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
8 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- 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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,330 across 33 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
Additional practice locations (2)
- 1200 N State StLos Angeles, CA 90089-1001Phone: (323) 442-8500
- 5841 S Maryland Ave # 6040Chicago, IL 60637-1443Phone: (773) 702-1000Fax: (773) 702-2140
Registry dates
- Enumerated
- 2018-06-11
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Alexander Trenk's NPI number?
- Alexander Trenk's National Provider Identifier (NPI) is 1508359936, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Trenk's specialty?
- Alexander Trenk is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Alexander Trenk located?
- Alexander Trenk's practice location on file with NPPES is 800 W. Central Rd., Arlington Heights, IL 60005-2349.
- What is Alexander Trenk's phone number?
- The practice phone number listed in the NPPES registry for Alexander Trenk is (847) 618-2809.
- Does Alexander Trenk accept Medicare?
- Alexander Trenk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Trenk's NPI active?
- Yes — Alexander Trenk's NPI (1508359936) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.