Mary Opfer, MS, RDN, CDN
NPI 1568816825 · Registered Dietitian · Yorktown Heights, NY
Mary Opfer, MS, RDN, CDN is a Registered Dietitian provider in Yorktown Heights, NY (NPI 1568816825).
Provider details
- NPI number
- 1568816825
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- MS, RDN, CDN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 001534 (CT)
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
2 documented practice locations
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
Additional practice locations (1)
- 42 Lake Avenue ExtDanbury, CT 06811-5279Phone: (914) 774-8530
Registry dates
- Enumerated
- 2016-04-22
- Last updated
- 2019-03-06
Frequently asked questions
- What is Mary Opfer's NPI number?
- Mary Opfer's National Provider Identifier (NPI) is 1568816825, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Opfer's specialty?
- Mary Opfer is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Mary Opfer located?
- Mary Opfer's practice location on file with NPPES is 11 Green Tree Rd, Yorktown Heights, NY 10598-6327.
- What is Mary Opfer's phone number?
- The practice phone number listed in the NPPES registry for Mary Opfer is (914) 774-8530.
- Is Mary Opfer's NPI active?
- Yes — Mary Opfer's NPI (1568816825) is active in the NPPES registry as of the last update on 2019-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.