Susan Karplus, N.P.
NPI 1184878654 · Family Nurse Practitioner · Castro Valley, CA
Susan Karplus, N.P. is a Family Nurse Practitioner provider in Castro Valley, CA (NPI 1184878654).
Provider details
- NPI number
- 1184878654
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 385018 (CA)
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
17 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
- 2008-11-11
- Last updated
- 2016-04-04
Frequently asked questions
- What is Susan Karplus's NPI number?
- Susan Karplus's National Provider Identifier (NPI) is 1184878654, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Susan Karplus's specialty?
- Susan Karplus is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Susan Karplus located?
- Susan Karplus's practice location on file with NPPES is 20400 Lake Chabot Rd, Castro Valley, CA 94546-5311.
- What is Susan Karplus's phone number?
- The practice phone number listed in the NPPES registry for Susan Karplus is (510) 247-9227.
- Is Susan Karplus's NPI active?
- Yes — Susan Karplus's NPI (1184878654) is active in the NPPES registry as of the last update on 2016-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.