Gosta Iwasiuk, M.D.
NPI 1114023249 · Surgery Physician · Ventura, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gosta Iwasiuk, M.D. is a Surgery Physician provider in Ventura, CA (NPI 1114023249).
Provider details
- NPI number
- 1114023249
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A22839 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-16
- Last updated
- 2014-01-31
Frequently asked questions
- What is Gosta Iwasiuk's NPI number?
- Gosta Iwasiuk's National Provider Identifier (NPI) is 1114023249, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gosta Iwasiuk's specialty?
- Gosta Iwasiuk is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Gosta Iwasiuk located?
- Gosta Iwasiuk's practice location on file with NPPES is 5855 Olivas Park Dr, Ventura, CA 93003-7672.
- What is Gosta Iwasiuk's phone number?
- The practice phone number listed in the NPPES registry for Gosta Iwasiuk is (805) 667-2801.
- Does Gosta Iwasiuk accept Medicare?
- Gosta Iwasiuk is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gosta Iwasiuk's NPI active?
- Yes — Gosta Iwasiuk's NPI (1114023249) is active in the NPPES registry as of the last update on 2014-01-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.