NPPES file of Aug 9, 2026

Anna O'Brien, AGACNP-BC

Nurse Practitioner · Concord, NH

Anna O'Brien, AGACNP-BC is a nurse practitioner with a practice address in Concord, New Hampshire, and NPI 1265253439, issued on Oct 21, 2024. Check the license (New Hampshire 085015-23, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265253439
Name
Anna O'Brien
Credential
AGACNP-BC
Primary taxonomy
Nurse Practitioner 363L00000X
License number
085015-23 NH
Self-reported in NPPES; status is on the state search
Practice location
250 Pleasant St, Concord, NH 03301
Phone
(603) 622-6484
Enumerated
Oct 21, 2024
Record last updated
Feb 16, 2026
Medicare enrollment
Enrolled (PECOS I20260224000248); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest nurse practitioner records → All 412 in New Hampshire → Look up another NPI →

Also registered at 250 Pleasant St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Peter Abdalla, DOHospitalist Physician1013279504
  2. Ruba Abdullah, MDFamily Medicine Physician1336871524
  3. Arthur Ablayev, MDHospitalist Physician1598178881
  4. Judith Ainsworth, APRNFamily Nurse Practitioner1023473881
  5. D. Akey, MDPulmonary Disease Physician1629015995
  6. Mathew AllardStudent in an Organized Health Care Education/Training Program1477499515

Verify Anna O'Brien in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
    Search for license 085015-23    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the New Hampshire license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. New Hampshire Oncology-Hematology PAConcord, NH

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Anna O'Brien among 412 nurse practitioner records in New Hampshire

Anna O'Brien, AGACNP-BC is one of 412 nurse practitioner records with a practice address in New Hampshire. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2024, is newer than 91% of them.

  • NPI issued2024 · 91% of these records are older, 5% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2025 · median 2017 among the 241 with a school on file
  • Record last updated2026 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

46 nurse practitioner records list a practice address in Concord

They are 46 of the 3,103 NPPES records with a practice address in Concord, and 412 nurse practitioner records in New Hampshire.

All 412 in New Hampshire → Every provider in Concord → Nurse Practitioner nationwide →

The 8 nurse practitioner records with the nearest ZIP codes

  1. Mary Berman, ARNPConcord, NH 033011518903962
  2. Ardell Currier, ARNPConcord, NH 033011003850041
  3. Hazel Daley, ARNPConcord, NH 033011780625186
  4. Denise Fox, ARNPConcord, NH 033011144264169
  5. Holli Gorrell, ARNPConcord, NH 033011558302323
  6. Patrick Hornig, ARNPConcord, NH 033011588601082
  7. David Lake, ARNPConcord, NH 033011245306158
  8. Linda Mead, ARNPConcord, NH 033011639117609

Common questions

What is Anna O'Brien, AGACNP-BC's NPI number?

Anna O'Brien, AGACNP-BC's National Provider Identifier (NPI) is 1265253439, issued on Oct 21, 2024. An NPI identifies a provider in billing; it is not a license.

Where is Anna O'Brien, AGACNP-BC located?

The NPPES record lists a practice address at 250 Pleasant St, Concord, NH, 03301. Phone: (603) 622-6484. Providers update this record themselves, so call before visiting.

How can I verify Anna O'Brien, AGACNP-BC's license?

NPPES lists New Hampshire license number 085015-23, 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), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.