William Greenberg, APRN
NPI 1821013566 · Adult Psychiatric/Mental Health Clinical Nurse Specialist · Boca Raton, FL
William Greenberg, APRN is a Adult Psychiatric/Mental Health Clinical Nurse Specialist provider in Boca Raton, FL (NPI 1821013566).
Provider details
- NPI number
- 1821013566
- Entity type
- Individual
- Primary specialty
- Adult Psychiatric/Mental Health Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Male
- Sole proprietor
- No
- License
- CNS 9437804 (FL)
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
- 2006-07-13
- Last updated
- 2016-11-02
Frequently asked questions
- What is William Greenberg's NPI number?
- William Greenberg's National Provider Identifier (NPI) is 1821013566, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Greenberg's specialty?
- William Greenberg is listed in the NPPES registry with a primary specialty of Adult Psychiatric/Mental Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Greenberg located?
- William Greenberg's practice location on file with NPPES is 7301a W Palmetto Park Rd, Boca Raton, FL 33433-3409.
- What is William Greenberg's phone number?
- The practice phone number listed in the NPPES registry for William Greenberg is (561) 391-4669.
- Is William Greenberg's NPI active?
- Yes — William Greenberg's NPI (1821013566) is active in the NPPES registry as of the last update on 2016-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.