Karen Kosar, NURSE PRACTITIONER
NPI 1992712392 · Adult Health Nurse Practitioner · Williamsville, NY
Karen Kosar, NURSE PRACTITIONER is a Adult Health Nurse Practitioner provider in Williamsville, NY (NPI 1992712392).
Provider details
- NPI number
- 1992712392
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NURSE PRACTITIONER
- Sex
- Female
- Sole proprietor
- No
- License
- F302104-1 (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
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
- 2006-08-01
- Last updated
- 2021-12-20
- Certified
- 2021-12-20
Frequently asked questions
- What is Karen Kosar's NPI number?
- Karen Kosar's National Provider Identifier (NPI) is 1992712392, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Kosar's specialty?
- Karen Kosar is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Kosar located?
- Karen Kosar's practice location on file with NPPES is 295 Essjay Rd, Williamsville, NY 14221-8216.
- What is Karen Kosar's phone number?
- The practice phone number listed in the NPPES registry for Karen Kosar is (716) 630-1000.
- Is Karen Kosar's NPI active?
- Yes — Karen Kosar's NPI (1992712392) is active in the NPPES registry as of the last update on 2021-12-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.