Doris Massey-Karsznia, MSN, ANP-BC, RN
NPI 1710288097 · Adult Health Nurse Practitioner · El Cerrito, CA
Doris Massey-Karsznia, MSN, ANP-BC, RN is a Adult Health Nurse Practitioner provider in El Cerrito, CA (NPI 1710288097).
Provider details
- NPI number
- 1710288097
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN, ANP-BC, RN
- Sex
- Female
- Sole proprietor
- Yes
- License
- NP 12243 (CA)
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
15 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
- 2010-11-03
- Last updated
- 2010-11-03
Frequently asked questions
- What is Doris Massey-Karsznia's NPI number?
- Doris Massey-Karsznia's National Provider Identifier (NPI) is 1710288097, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Doris Massey-Karsznia's specialty?
- Doris Massey-Karsznia is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Doris Massey-Karsznia located?
- Doris Massey-Karsznia's practice location on file with NPPES is 8306 Terrace Dr, El Cerrito, CA 94530-3061.
- What is Doris Massey-Karsznia's phone number?
- The practice phone number listed in the NPPES registry for Doris Massey-Karsznia is (510) 206-0466.
- Is Doris Massey-Karsznia's NPI active?
- Yes — Doris Massey-Karsznia's NPI (1710288097) is active in the NPPES registry as of the last update on 2010-11-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.