William Keffer
NPI 1144545633 · Psychiatric/Mental Health Registered Nurse · Harrisburg, PA
William Keffer is a Psychiatric/Mental Health Registered Nurse provider in Harrisburg, PA (NPI 1144545633).
Provider details
- NPI number
- 1144545633
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Registered NurseNursing Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- RN502963L (PA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-03-29
- Last updated
- 2010-03-29
Frequently asked questions
- What is William Keffer's NPI number?
- William Keffer's National Provider Identifier (NPI) is 1144545633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Keffer's specialty?
- William Keffer is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Registered Nurse (Nursing Service Providers).
- Where is William Keffer located?
- William Keffer's practice location on file with NPPES is 307 S Front St, Harrisburg, PA 17104-1621.
- What is William Keffer's phone number?
- The practice phone number listed in the NPPES registry for William Keffer is (717) 221-6200.
- Is William Keffer's NPI active?
- Yes — William Keffer's NPI (1144545633) is active in the NPPES registry as of the last update on 2010-03-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.