IndividualActive
Nancy Gruenfelder, RDN
NPI 1578291910 · Registered Dietitian · Rye Brook, NY
Nancy Gruenfelder, RDN is a Registered Dietitian provider in Rye Brook, NY (NPI 1578291910).
Provider details
- NPI number
- 1578291910
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- RDN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 008903 (NY)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Established profile(60/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
68 Greenway Ln
Rye Brook, NY 10573-1514
Phone: (914) 479-9653
Street-level locationGet directions
Mailing address
68 Greenway Ln
Rye Brook, NY 10573-1514
Registry dates
- Enumerated
- 2022-08-12
- Last updated
- 2022-08-12
- Certified
- 2022-08-12
Frequently asked questions
- What is Nancy Gruenfelder's NPI number?
- Nancy Gruenfelder's National Provider Identifier (NPI) is 1578291910, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Gruenfelder's specialty?
- Nancy Gruenfelder is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Nancy Gruenfelder located?
- Nancy Gruenfelder's practice location on file with NPPES is 68 Greenway Ln, Rye Brook, NY 10573-1514.
- What is Nancy Gruenfelder's phone number?
- The practice phone number listed in the NPPES registry for Nancy Gruenfelder is (914) 479-9653.
- Is Nancy Gruenfelder's NPI active?
- Yes — Nancy Gruenfelder's NPI (1578291910) is active in the NPPES registry as of the last update on 2022-08-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.