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Gretchen Collins, RD, LDN
NPI 1912163965 · Registered Dietitian · Barrington, IL
Gretchen Collins, RD, LDN is a Registered Dietitian provider in Barrington, IL (NPI 1912163965).
Provider details
- NPI number
- 1912163965
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RD, LDN
- Sex
- Female
- Sole proprietor
- No
- License
- 164001545 (IL)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Detailed profile(87/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 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
450 W Highway 22
Barrington, IL 60010-1919
Phone: (847) 381-0123
Street-level locationGet directions
Mailing address
575 N Grethe Ct
Lake Zurich, IL 60047-2782
Registry dates
- Enumerated
- 2008-07-30
- Last updated
- 2008-07-30
Frequently asked questions
- What is Gretchen Collins's NPI number?
- Gretchen Collins's National Provider Identifier (NPI) is 1912163965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Collins's specialty?
- Gretchen Collins is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Gretchen Collins located?
- Gretchen Collins's practice location on file with NPPES is 450 W Highway 22, Barrington, IL 60010-1919.
- What is Gretchen Collins's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Collins is (847) 381-0123.
- Is Gretchen Collins's NPI active?
- Yes — Gretchen Collins's NPI (1912163965) is active in the NPPES registry as of the last update on 2008-07-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.