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

Mark Antos, MD

Individual provider Gastroenterology Physician · NPI 1942269030

Mark Antos, MD is a Gastroenterology Physician in Seaford, Delaware. Licensed in Delaware. Registered with an NPI since 2006.

Licensed in
DE
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1501 Middleford Rd
Seaford, DE 19973-3615
Phone: (302) 629-4255
Fax: (302) 629-5777
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence C10003337 (DE)

Record details

NPI number1942269030
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 20, 2006
Last updated in NPPESJuly 13, 2026
Mailing address1501 Middleford Rd, Seaford, DE 19973-3615

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