William J. Massinger, LCSW
Clinical Social Worker · Southampton, PA
William J. Massinger, LCSW is a clinical social worker with a practice address in Southampton, Pennsylvania, and NPI 1255466371, issued on Feb 22, 2007. Check the license (Pennsylvania CW008523L, as entered in NPPES) with the Pennsylvania board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William J. Massinger
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- CW008523L PA
Self-reported in NPPES; status is on the state search - Practice location
- 504 Lakeside Drive, Southampton, PA 18966
- Phone
- (215) 354-0777
- Enumerated
- Feb 22, 2007
- Record last updated
- Jun 6, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (215) 354-0772
- Medicare enrollment
- Enrolled (PECOS I20130731000149); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical social worker records → All 7,830 in Pennsylvania → Look up another NPI →
Also registered at 504 Lakeside Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jillian SullivanMental Health Counselor1376224998
- Kyle Walsh, PHDProfessional Counselor1487796413
Verify William J. Massinger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license CW008523LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
William J. Massinger among 7,830 clinical social worker records in Pennsylvania
William J. Massinger, LCSW is one of 7,830 clinical social worker records with a practice address in Pennsylvania. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 17% of them.
- NPI issued2007 · 17% of these records are older, 73% newer
- In a Medicare fileNo · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 24% of these records are
- Graduated1994 · median 2007 among the 1,888 with a school on file
- Record last updated2011 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 clinical social worker records list a practice address in Southampton
They are 14 of the 375 NPPES records with a practice address in Southampton, and 7,830 clinical social worker records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,830 in Pennsylvania → Every provider in Southampton → Clinical Social Worker nationwide →
The 8 clinical social worker records with the nearest ZIP codes
- Justin BennerSouthampton, PA 189661285033266
- Florrie Fisher, MSSSouthampton, PA 189661740322585
- Isaac Garfield, LCSWSouthampton, PA 189661770916579
- Darci Haun, MSWHolland, PA 189661366605040
- Nancy Hessenthaler, LCSWSouthampton, PA 189661528004009
- Tracey Katz, LCSWHolland, PA 189661538222468
- Meredith Kramer, MSWSouthampton, PA 189661083728661
- Jane Macneill, LCSWSouthamptom, PA 189661740694652
Common questions
What is William J. Massinger, LCSW's NPI number?
William J. Massinger, LCSW's National Provider Identifier (NPI) is 1255466371, issued on Feb 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William J. Massinger, LCSW located?
The NPPES record lists a practice address at 504 Lakeside Drive, Southampton, PA, 18966. Phone: (215) 354-0777. Providers update this record themselves, so call before visiting.
How can I verify William J. Massinger, LCSW's license?
NPPES lists Pennsylvania license number CW008523L, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.