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

Steven C. Marks, MD, PA

Organization Otolaryngology Physician · NPI 1902085988

Steven C. Marks, MD, PA is an Otolaryngology Physician in Havre de Grace, Maryland. Licensed in Maryland. Registered with an NPI since 2007.

Licensed in
MD
In the registry since
2007
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

See every abbreviation used in this directory →

Practice location Address checks out

456 Alliance St
Havre de Grace, MD 21078-3559
Phone: (410) 939-3933
Fax: (410) 939-3934
Show map & directions

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

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence D36768 (MD)

Record details

NPI number1902085988
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Steven Marks — President · (410) 939-3933
NPI enumeratedOctober 26, 2007
Last updated in NPPESOctober 26, 2007
Mailing address456 Alliance St, Havre De Grace, MD 21078-3559

Other providers in Havre de Grace