William Windsor
NPI 1578416103 · Psychiatric/Mental Health Nurse Practitioner · Anderson, SC
William Windsor is a Psychiatric/Mental Health Nurse Practitioner provider in Anderson, SC (NPI 1578416103).
Provider details
- NPI number
- 1578416103
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 31541 (SC)
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
Under 1 yr in 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
- 2026-02-14
- Last updated
- 2026-02-14
- Certified
- 2026-02-14
Frequently asked questions
- What is William Windsor's NPI number?
- William Windsor's National Provider Identifier (NPI) is 1578416103, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Windsor's specialty?
- William Windsor is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is William Windsor located?
- William Windsor's practice location on file with NPPES is 4126 Clemson Blvd Ste 2c, Anderson, SC 29621-1113.
- What is William Windsor's phone number?
- The practice phone number listed in the NPPES registry for William Windsor is (678) 372-0985.
- Is William Windsor's NPI active?
- Yes — William Windsor's NPI (1578416103) is active in the NPPES registry as of the last update on 2026-02-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.