IndividualActive
Margaret Hayner, R.D.
NPI 1922165638 · Registered Dietitian · Portsmouth, NH
Margaret Hayner, R.D. is a Registered Dietitian provider in Portsmouth, NH (NPI 1922165638).
Provider details
- NPI number
- 1922165638
- Entity type
- Individual
- Primary specialty
- Registered DietitianDietary & Nutritional Service Providers
- Credential
- R.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 154 (NH)
Specialties & taxonomies
Dietary & Nutritional Service Providers
Profile Score
Detailed profile(90/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
155 Griffin Rd
Portsmouth, NH 03801-4125
Phone: (603) 431-7523
Fax: (603) 436-3496
Street-level locationGet directions
Mailing address
Po Box 817
Portsmouth, NH 03802-0817
Registry dates
- Enumerated
- 2007-01-02
- Last updated
- 2007-07-08
Frequently asked questions
- What is Margaret Hayner's NPI number?
- Margaret Hayner's National Provider Identifier (NPI) is 1922165638, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Hayner's specialty?
- Margaret Hayner is listed in the NPPES registry with a primary specialty of Registered Dietitian (Dietary & Nutritional Service Providers).
- Where is Margaret Hayner located?
- Margaret Hayner's practice location on file with NPPES is 155 Griffin Rd, Portsmouth, NH 03801-4125.
- What is Margaret Hayner's phone number?
- The practice phone number listed in the NPPES registry for Margaret Hayner is (603) 431-7523.
- Is Margaret Hayner's NPI active?
- Yes — Margaret Hayner's NPI (1922165638) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.