Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Melissa A O'Neill, APRN

Individual provider Gerontology Nurse Practitioner · NPI 1235236969

Melissa A O'Neill, APRN is a Nurse Practitioner in Lebanon, New Hampshire. Qualified in 1993, 33 years ago. Practices with Mary Hitchcock Memorial Hospital, a 1,266-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Connecticut and New Hampshire.

Years since qualifying
33
Licensed in
CT, NH
In the registry since
2006
Specialties on file
4
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

Practice location Address checks out

1 Medical Center Dr
Lebanon, NH 03756-1000
Phone: (603) 650-5000
Fax: (603) 640-1228
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 85 Retreat Ave, Hartford, CT 06106-2555 — (860) 249-6291

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 116267-23 (NH)
Gerontology Nurse Practitioner Taxonomy 363LG0600X · Licence 000993 (CT)
Nurse Practitioner Taxonomy 363L00000X · Licence 000993 (CT)
Adult Health Nurse Practitioner Taxonomy 363LA2200X · Licence 000993 (CT)

Record details

NPI number1235236969
Entity typeIndividual (Type 1)
GenderFemale
Credentials APRN
Sole proprietorNo
NPI enumeratedSeptember 17, 2006
Last updated in NPPESFebruary 18, 2026
Certification dateFebruary 18, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Mary Hitchcock Memorial Hospital — 1266 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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