Carol Istvanick, FNP
NPI 1154331163 · Family Nurse Practitioner · Fresno, CA
Carol Istvanick, FNP is a Family Nurse Practitioner provider in Fresno, CA (NPI 1154331163).
Provider details
- NPI number
- 1154331163
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- 479392 (CA)
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 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
- 2006-08-09
- Last updated
- 2008-09-30
Frequently asked questions
- What is Carol Istvanick's NPI number?
- Carol Istvanick's National Provider Identifier (NPI) is 1154331163, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Istvanick's specialty?
- Carol Istvanick is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Carol Istvanick located?
- Carol Istvanick's practice location on file with NPPES is 1277 N Wishon Ave, Fresno, CA 93728-2346.
- What is Carol Istvanick's phone number?
- The practice phone number listed in the NPPES registry for Carol Istvanick is (559) 264-7062.
- Is Carol Istvanick's NPI active?
- Yes — Carol Istvanick's NPI (1154331163) is active in the NPPES registry as of the last update on 2008-09-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.