Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Anna O'Brien, AGACNP-BC
Nurse Practitioner in Concord, NH · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1265253439
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Registry record
Entity type Individual (Type 1)
Name Anna O'Brien
Credential AGACNP-BC
Sex Female
Practice address 250 Pleasant St, Concord, NH, 03301
Phone (603) 622-6484
Enumeration date Oct 21, 2024
Last updated in NPPES Feb 16, 2026
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 085015-23 (NH) Primary
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.
Frequently asked questions
Is NPI 1265253439 active?
Yes, as of the latest NPPES snapshot, NPI 1265253439 is active (record last updated 2026-02-16).
How do I verify Anna O'Brien's NPI record?
Cross-check NPI 1265253439 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Jay Bryan Bannister Family Medicine Physician · Concord, NH NPI 1619970746 Mary Danca Obstetrics & Gynecology Physician · Concord, NH NPI 1770586497 Molly Rossignol Addiction Medicine (Family Medicine) Physician · Concord, NH NPI 1780687145 Kelley Shultz Pediatrics Physician · Concord, NH NPI 1548262504 Paul Matzkin Hospitalist Physician · Concord, NH NPI 1427053362 Daniel Eubank Family Medicine Physician · Concord, NH NPI 1841295797 Christos Giotopoulos Dentist · Concord, NH NPI 1487659447 Suzanne Boulter Pediatrics Physician · Concord, NH NPI 1992700967
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-16.