Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Margaret R Keiran, NP

Adult Health Nurse Practitioner in Middletown, RI · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1043302482

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Registry record

Entity type Individual (Type 1)

Name Mrs. Margaret R Keiran

Credential NP

Sex Female

Practice address 850 Aquidneck Ave, Middletown, RI, 02842

Phone (401) 846-0055

Fax (401) 842-0963

Enumeration date Sep 29, 2006

Last updated in NPPES Apr 1, 2016

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN00676 (RI) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
05-0483739	Other	PW	TAX ID #
1043302482	Medicaid	RI	-
709004149	Other	RI	MEDICARE GROUP PTAN

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Margaret Keiran?

Margaret Keiran is registered in NPPES with the primary taxonomy of Adult Health Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Steven Freedman Otolaryngology Physician · Middletown, RI NPI 1912901869 James Dobbin Otolaryngology Physician · Middletown, RI NPI 1164426011 Olga Harbar Nurse Practitioner · Middletown, RI NPI 1184610636 Paul Block Psychologist · Middletown, RI NPI 1295797389 Martha Williams Psychologist · Middletown, RI NPI 1841253150 Nancy Davis Psychologist · Middletown, RI NPI 1881657195 Steven Diehl Psychologist · Middletown, RI NPI 1215988175 Jon Ladd Psychologist · Middletown, RI NPI 1619923414

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-04-01.