William O'Neil, ANP
NPI 1962594085 · Gerontology Nurse Practitioner · Springfield, MA
William O'Neil, ANP is a Gerontology Nurse Practitioner provider in Springfield, MA (NPI 1962594085).
Provider details
- NPI number
- 1962594085
- Entity type
- Individual
- Primary specialty
- Gerontology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ANP
- Sex
- Male
- Sole proprietor
- No
- License
- 254442 (MA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-28
- Last updated
- 2007-07-08
Frequently asked questions
- What is William O'Neil's NPI number?
- William O'Neil's National Provider Identifier (NPI) is 1962594085, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William O'Neil's specialty?
- William O'Neil is listed in the NPPES registry with a primary specialty of Gerontology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William O'Neil located?
- William O'Neil's practice location on file with NPPES is 1400 State St, Springfield, MA 01199-0001.
- What is William O'Neil's phone number?
- The practice phone number listed in the NPPES registry for William O'Neil is (413) 787-6700.
- Is William O'Neil's NPI active?
- Yes — William O'Neil's NPI (1962594085) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.