Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Stacy J Castaldi, DO

Individual provider Diagnostic Radiology Physician · NPI 1598758088

Stacy J Castaldi, DO practises Diagnostic Radiology in Harrisburg, Pennsylvania. Qualified in 1991, 35 years ago. Practices with Southern Delaware Imaging Assoc, a 43-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
35
Licensed in
PA
In the registry since
2005
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

4518 Union Deposit Rd
Harrisburg, PA 17111-2921 Not confirmed with CMS for 13 years — call before visiting
Phone: (717) 652-5840
Fax: (717) 652-8152
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence 05010639L (PA)

Record details

NPI number1598758088
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 30, 2005
Last updated in NPPESSeptember 11, 2013

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice Southern Delaware Imaging Assoc — 43 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients6,808
Services billed 12,695 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Southern Delaware Imaging Assoc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 43 clinicians in the practice; 12 are shown here.

Other providers in Harrisburg