Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Eric Christopher Gryn, RN, MSN, ACNP-BC

Acute Care Nurse Practitioner in Newport, RI · enumerated 2011.

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

National Provider Identifier

1548544158

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Registry record

Entity type Individual (Type 1)

Name Eric Christopher Gryn

Credential RN, MSN, ACNP-BC

Sex Male

Practice address Newport, RI, 02841

Phone (401) 841-4348

Enumeration date Sep 30, 2011

Last updated in NPPES Oct 2, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 0001155943 (VA) Secondary

163WE0003X Emergency Registered Nurse Nursing Service Providers · License 041361945 (IL) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 041361945 (IL) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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 Eric Gryn?

Eric Gryn is registered in NPPES with the primary taxonomy of Acute Care 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.

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Thomas Mcgue Geriatric Medicine (Family Medicine) Physician · Newport, RI NPI 1336140797 Mariann Jaroszynski Physical Therapist · Newport, RI NPI 1356314827 Anne Mitchell Family Nurse Practitioner · Newport, RI NPI 1295708550 Sidney Goehring Pharmacotherapy Pharmacist · Newport, RI NPI 1508839598 David Beardsley Anesthesiology Physician · Newport, RI NPI 1285608646 Kelley Newman Medical Physician Assistant · Newport, RI NPI 1295709400 Andrew Schiemel Pediatrics Physician · Newport, RI NPI 1497729354 Anthony Amaio Pediatrics Physician · Newport, RI NPI 1376518084

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-02.