Joan Zietlow, RN
NPI 1518328152 · Nutritionist · Winnetka, IL
Joan Zietlow, RN is a Nutritionist provider in Winnetka, IL (NPI 1518328152).
Provider details
- NPI number
- 1518328152
- Entity type
- Individual
- Primary specialty
- NutritionistDietary & Nutritional Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 041-194615 (IL)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 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
- 2016-03-10
- Last updated
- 2016-03-10
Frequently asked questions
- What is Joan Zietlow's NPI number?
- Joan Zietlow's National Provider Identifier (NPI) is 1518328152, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joan Zietlow's specialty?
- Joan Zietlow is listed in the NPPES registry with a primary specialty of Nutritionist (Dietary & Nutritional Service Providers).
- Where is Joan Zietlow located?
- Joan Zietlow's practice location on file with NPPES is 870 Foxdale Ave, Winnetka, IL 60093-1910.
- What is Joan Zietlow's phone number?
- The practice phone number listed in the NPPES registry for Joan Zietlow is (847) 501-4604.
- Is Joan Zietlow's NPI active?
- Yes — Joan Zietlow's NPI (1518328152) is active in the NPPES registry as of the last update on 2016-03-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.