William James Kasper
Diagnostic Radiology Physician · Philadelphia, PA
William James Kasper is a diagnostic radiology physician with a practice address in Philadelphia, Pennsylvania, and NPI 1023570843, issued on Apr 1, 2019. Check the license (Pennsylvania MD489964, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- William James Kasper
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- MD489964 PA
Self-reported in NPPES; status is on the state search - Practice location
- 3401 N Broad St, Philadelphia, PA 19140
- Phone
- (215) 707-7237
- Enumerated
- Apr 1, 2019
- Record last updated
- Jan 26, 2026
- Fax
- (215) 707-9389
- Medicare enrollment
- Enrolled (PECOS I20250512003255); accepts Medicare assignment
- Medical or professional school
- Cooper Medical School Of Rowan University, 2019
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 2,199 in Pennsylvania → Look up another NPI →
Also registered at 3401 N Broad St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William James Kasper in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD489964Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Temple Faculty Practice Plan IncPhiladelphia, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William James Kasper among 2,199 diagnostic radiology physician records in Pennsylvania
William James Kasper is one of 2,199 diagnostic radiology physician records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 91% of them.
- NPI issued2019 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2019 · median 2003 among the 1,439 with a school on file
- Record last updated2026 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
572 diagnostic radiology physician records list a practice address in Philadelphia
They are 572 of the 42,849 NPPES records with a practice address in Philadelphia, and 2,199 diagnostic radiology physician records in Pennsylvania.
All 2,199 in Pennsylvania → Every provider in Philadelphia → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Sayed Ali, MDPhiladelphia, PA 191401578552469
- Rajkumari Balchandani, MDPhiladelphia, PA 191401528057486
- Robert Bronstein, MDPhiladelphia, PA 191401558359612
- Dina Caroline, MDPhiladelphia, PA 191401790774669
- Marta Chaplynsky, MDPhiladelphia, PA 191401609865575
- Allan Cohen, MDPhiladelphia, PA 191401982693636
- Chandra Dass, MDPhiladelphia, PA 191401467440529
- Renee Kendzierski, DOPhiladelphia, PA 191401952399883
Common questions
What is William James Kasper's NPI number?
William James Kasper's National Provider Identifier (NPI) is 1023570843, issued on Apr 1, 2019. An NPI identifies a provider in billing; it is not a license.
Where is William James Kasper located?
The NPPES record lists a practice address at 3401 N Broad St, Philadelphia, PA, 19140. Phone: (215) 707-7237. Providers update this record themselves, so call before visiting.
How can I verify William James Kasper's license?
NPPES lists Pennsylvania license number MD489964, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. 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.