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

Denise Ann O'Neil, AGNP

Individual provider Adult Health Nurse Practitioner · NPI 1427681493

Denise Ann O'Neil, AGNP is a Nurse Practitioner in Salamanca, New York. Qualified in 2015, 11 years ago. Practices with Olean General Hospital, a 80-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
11
Licensed in
NY
In the registry since
2020
What do these letters mean?
AGNP — Adult-Gerontology Nurse Practitioner
A nurse practitioner focused on adults and older people.

See every abbreviation used in this directory →

Practice location Address checks out

4039 US 219
Salamanca, NY 14779
Phone: (716) 945-0371
Fax: (716) 945-0361
Show map & directions

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

Specialties & licences

Adult Health Nurse Practitioner (primary) Taxonomy 363LA2200X · Licence 309565 (NY)

Record details

NPI number1427681493
Entity typeIndividual (Type 1)
GenderFemale
Credentials AGNP
Sole proprietorNo
NPI enumeratedFebruary 19, 2020
Last updated in NPPESFebruary 19, 2020
Certification dateFebruary 19, 2020

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2015 (11 years in practice)
Group practice Olean General Hospital — 80 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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