Sarah Flessner, MS, RD, CSP
NPI 1316575988 · Registered Dietitian · Grand Rapids, MI
Enrolled with Medicare as Practitioner - Registered Dietitian Or Nutrition Professional · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sarah Flessner, MS, RD, CSP is a Registered Dietitian provider in Grand Rapids, MI (NPI 1316575988).
Provider details
- NPI number
- 1316575988
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS, RD, CSP
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2020-03-30
- Last updated
- 2021-02-15
- Certified
- 2021-02-15
Frequently asked questions
- What is Sarah Flessner's NPI number?
- Sarah Flessner's National Provider Identifier (NPI) is 1316575988, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sarah Flessner's specialty?
- Sarah Flessner is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Sarah Flessner located?
- Sarah Flessner's practice location on file with NPPES is 330 Barclay Ave Ne Ste 203, Grand Rapids, MI 49503-2527.
- What is Sarah Flessner's phone number?
- The practice phone number listed in the NPPES registry for Sarah Flessner is (616) 391-2123.
- Does Sarah Flessner accept Medicare?
- Sarah Flessner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sarah Flessner's NPI active?
- Yes — Sarah Flessner's NPI (1316575988) is active in the NPPES registry as of the last update on 2021-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.