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

Mark A Riddle, MD

Individual provider Child & Adolescent Psychiatry Physician · NPI 1316989304

Mark A Riddle, MD is a Child & Adolescent Psychiatry Physician in Columbia, Maryland. Practices as a sole proprietor. Licensed in Maryland.

Licensed in
MD
In the registry since
2006
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

5500 Knoll North Dr Ste 370
Columbia, MD 21045-2393
Phone: (410) 837-2050
Fax: (866) 629-0091
Show map & directions

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

Specialties & licences

Child & Adolescent Psychiatry Physician (primary) Taxonomy 2084P0804X · Licence D0045696 (MD)

Record details

NPI number1316989304
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 12, 2006
Last updated in NPPESJuly 21, 2022
Mailing address1111 N Charles St, Baltimore, MD 21201-5505

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