Margaret Hayner, R.D.
Registered Dietitian · Portsmouth, NH
Margaret Hayner, R.D. is a registered dietitian with a practice address in Portsmouth, New Hampshire, and NPI 1922165638, issued on Jan 2, 2007. Check the license (New Hampshire 154, as entered in NPPES) with the New Hampshire board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Margaret Hayner
- Credential
- R.D.
- Primary taxonomy
- Registered Dietitian 133V00000X
- License number
- 154 NH
Self-reported in NPPES; status is on the state search - Practice location
- 155 Griffin RD, Portsmouth, NH 03801
- Phone
- (603) 431-7523
- Enumerated
- Jan 2, 2007
- Entity
- Type 1 · individual
Also registered at 155 Griffin RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Emily Amarosa, MDObstetrics & Gynecology Physician1336466564
- Carolyn Biba, PAPhysician Assistant1255859757
- Jill Federico, ODOptometrist1083080881
- Saroj Fleming, MDObstetrics & Gynecology Physician1942435086
- Puneet Harisinghani, ODOptometrist1295302081
- Heidi Keup, MDObstetrics & Gynecology Physician1720247968
Verify Margaret Hayner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
24 registered dietitian records list a Portsmouth practice address
They are 24 of the 1,860 NPPES records with a Portsmouth practice address, and 423 registered dietitian records in New Hampshire. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 24 in Portsmouth → All 423 in New Hampshire → Every provider in Portsmouth →
Other registered dietitian records in New Hampshire
- Brittany Abbott, RD, LDNew London, NH1891506705
- Valentina AccardoHanover, NH1902760887
- Sarah Agnoli, RDWoodsville, NH1710647383
- Rima Al-Nimr, RD/RDN, LDLebanon, NH1659745586
- Jessica Aleba, RD, LDNBedford, NH1568752913
- Rosanna Alvarez, RDN, LDLaconia, NH1104371475
- Audrey Anastasia, DRPH, RD, FANDManchester, NH1063682854
- Elizabeth Anderson, R.D.Derry, NH1982046819
- Amy Ansaldo, RD, LDKeene, NH1215796131
- Christina Aquila, R.D.Lebanon, NH1942528146
Common questions
What is Margaret Hayner, R.D.'s NPI number?
Margaret Hayner, R.D.'s National Provider Identifier (NPI) is 1922165638, issued on Jan 2, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Hayner, R.D. located?
The NPPES record lists a practice address at 155 Griffin RD, Portsmouth, NH, 03801. Phone: (603) 431-7523. Providers update this record themselves, so call before visiting.
How can I verify Margaret Hayner, R.D.'s license?
NPPES lists New Hampshire license number 154, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.