Karen Mazei
NPI 1629565676 · Family Nurse Practitioner · New Castle, DE
Karen Mazei is a Family Nurse Practitioner provider in New Castle, DE (NPI 1629565676).
Provider details
- NPI number
- 1629565676
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- L1-0033185 (DE)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
- 2018-04-16
- Last updated
- 2018-04-16
Frequently asked questions
- What is Karen Mazei's NPI number?
- Karen Mazei's National Provider Identifier (NPI) is 1629565676, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Mazei's specialty?
- Karen Mazei is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Mazei located?
- Karen Mazei's practice location on file with NPPES is 191 Christiana Rd, New Castle, DE 19720-3024.
- What is Karen Mazei's phone number?
- The practice phone number listed in the NPPES registry for Karen Mazei is (302) 322-1794.
- Is Karen Mazei's NPI active?
- Yes — Karen Mazei's NPI (1629565676) is active in the NPPES registry as of the last update on 2018-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.