Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Donald Lawrence Siegel, MD

Individual provider Anatomic Pathology Physician · NPI 1396773446

Donald Lawrence Siegel, MD practises Pathology in Philadelphia, Pennsylvania. Graduated from Perelman School of Med at the University of Pennsylvania in 1987, 39 years ago. Practices with University of Penn-Medical Group, a 3,401-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
39
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
PA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

800 Spruce St
Philadelphia, PA 19107-6130
Phone: (215) 829-3000
Fax: (215) 829-7564
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Pathology/Laboratory Medicine Physician (primary) Taxonomy 207ZP0105X · Licence MD044574E (PA)
Anatomic Pathology Physician Taxonomy 207ZP0101X · Licence MD044574R (PA)

Record details

NPI number1396773446
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 29, 2006
Last updated in NPPESOctober 29, 2019

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 1987 (39 years in practice)
Group practice University Of Penn-Medical Group — 3401 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 patients240
Services billed 304 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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.

Colleagues at University of Penn-Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3401 clinicians in the practice; 12 are shown here.

Other providers in Philadelphia