Kathleen O'Connor-Mullen, NP
NPI 1659321974 · Nurse Practitioner · Williamsville, NY
Kathleen O'Connor-Mullen, NP is a Nurse Practitioner provider in Williamsville, NY (NPI 1659321974).
Provider details
- NPI number
- 1659321974
- Entity type
- Individual
- Primary specialty
- Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- F3311582 (NY)
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
20 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
- 2006-05-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Kathleen O'Connor-Mullen's NPI number?
- Kathleen O'Connor-Mullen's National Provider Identifier (NPI) is 1659321974, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen O'Connor-Mullen's specialty?
- Kathleen O'Connor-Mullen is listed in the NPPES registry with a primary specialty of Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Kathleen O'Connor-Mullen located?
- Kathleen O'Connor-Mullen's practice location on file with NPPES is 1825 Maple Rd, Williamsville, NY 14221-2723.
- What is Kathleen O'Connor-Mullen's phone number?
- The practice phone number listed in the NPPES registry for Kathleen O'Connor-Mullen is (716) 204-4532.
- Is Kathleen O'Connor-Mullen's NPI active?
- Yes — Kathleen O'Connor-Mullen's NPI (1659321974) 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.