Timothy Vierling, MD
NPI 1336250380 · Obstetrics & Gynecology Physician · Arlington Heights, IL
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Vierling, MD is a Obstetrics & Gynecology Physician provider in Arlington Heights, IL (NPI 1336250380).
Provider details
- NPI number
- 1336250380
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036079192 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 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.
$221 across 8 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 (1)
- 1051 Perimeter Dr Ste 150Schaumburg, IL 60173-5075Phone: (847) 221-4300Fax: (847) 221-4396
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2022-03-16
- Certified
- 2022-03-16
Frequently asked questions
- What is Timothy Vierling's NPI number?
- Timothy Vierling's National Provider Identifier (NPI) is 1336250380, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Vierling's specialty?
- Timothy Vierling is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Vierling located?
- Timothy Vierling's practice location on file with NPPES is 1051 W Rand Rd Ste 101, Arlington Heights, IL 60004-2315.
- What is Timothy Vierling's phone number?
- The practice phone number listed in the NPPES registry for Timothy Vierling is (847) 221-4900.
- Does Timothy Vierling accept Medicare?
- Timothy Vierling is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Vierling's NPI active?
- Yes — Timothy Vierling's NPI (1336250380) is active in the NPPES registry as of the last update on 2022-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.