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

Gary Siegelman, MD

Individual provider Internal Medicine Physician · NPI 1386904159

Gary Siegelman, MD is an Internal Medicine Physician in Dover, Delaware. Licensed in Delaware. Registered with an NPI since 2012.

Licensed in
DE
In the registry since
2012
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

640 S State St
Dover, DE 19901-3530
Phone: (302) 744-6275
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence C1-0008707 (DE)

Record details

NPI number1386904159
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 25, 2012
Last updated in NPPESMay 25, 2012
Mailing address640 S State St, Dover, DE 19901-3530

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