Janice Greenberg, R.N.,N.P.
NPI 1942372297 · Family Nurse Practitioner · Walnut Creek, CA
Janice Greenberg, R.N.,N.P. is a Family Nurse Practitioner provider in Walnut Creek, CA (NPI 1942372297).
Provider details
- NPI number
- 1942372297
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- R.N.,N.P.
- Sex
- Female
- Sole proprietor
- No
- License
- 291722 (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
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
- 2006-11-14
- Last updated
- 2008-02-28
Frequently asked questions
- What is Janice Greenberg's NPI number?
- Janice Greenberg's National Provider Identifier (NPI) is 1942372297, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janice Greenberg's specialty?
- Janice Greenberg is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Janice Greenberg located?
- Janice Greenberg's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Janice Greenberg's phone number?
- The practice phone number listed in the NPPES registry for Janice Greenberg is (925) 295-5227.
- Is Janice Greenberg's NPI active?
- Yes — Janice Greenberg's NPI (1942372297) is active in the NPPES registry as of the last update on 2008-02-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.