Steven B. Master, PHD
Clinical Psychologist · Berwyn, PA
Steven B. Master, PHD is a clinical psychologist with a practice address in Berwyn, Pennsylvania, and NPI 1730258419, issued on Nov 7, 2006. Check the license (Pennsylvania PS005399L, 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
- Steven B. Master
- Credential
- PHD
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License numbers
- PS005399L PA
S102536 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 620 E Lancaster Ave, Berwyn, PA 19312
- Phone
- (610) 648-0555
- Enumerated
- Nov 7, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (610) 648-0555
- Medicare enrollment
- Enrolled (PECOS I20080917000590); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 2,597 in Pennsylvania → Look up another NPI →
Verify Steven B. Master in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license PS005399LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Steven B. Master among 2,597 clinical psychologist records in Pennsylvania
Steven B. Master, PHD is one of 2,597 clinical psychologist records with a practice address in Pennsylvania. 15% 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 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 71% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 27% of these records are
- Graduated1987 · median 2003 among the 707 with a school on file
- Record last updated2007 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 clinical psychologist records list a practice address in Berwyn
They are 6 of the 209 NPPES records with a practice address in Berwyn, and 2,597 clinical psychologist records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,597 in Pennsylvania → Every provider in Berwyn → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Nicole Chaikin, PSY.D.Berwyn, PA 193121962607010
- Barbara Ellis, PSY.D., ED.M.Berwyn, PA 193121831471994
- Jacqueline Halpern, PSYDBerwyn, PA 193121750076089
- Emily Paull, PSYDBerwyn, PA 193121063920247
- Elizabeth Schol, PSYDBerwyn, PA 193121861191637
- Linda Filetti, PHDChadds Ford, PA 193171194940585
- Elizabeth Kapadia, PHDChadds Ford, PA 193171255540985
- Erin McKeague, PSY.D.Chadds Ford, PA 193171932522489
Common questions
What is Steven B. Master, PHD's NPI number?
Steven B. Master, PHD's National Provider Identifier (NPI) is 1730258419, issued on Nov 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Steven B. Master, PHD located?
The NPPES record lists a practice address at 620 E Lancaster Ave, Berwyn, PA, 19312. Phone: (610) 648-0555. Providers update this record themselves, so call before visiting.
How can I verify Steven B. Master, PHD's license?
NPPES lists Pennsylvania license number PS005399L, 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.