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

Dr. Mark Edward Tilyou, MD

Individual provider Legal Medicine · NPI 1164420717

Dr. Mark Edward Tilyou, MD is a Legal Medicine in Altoona, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2005.

Licensed in
PA
In the registry since
2005
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

222 Chestnut Ave
Altoona, PA 16601-4928
Phone: (814) 946-8046
Fax: (814) 946-3693
Show map & directions

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

Specialties & licences

Legal Medicine (primary) Taxonomy 173000000X · Licence MD023252 (PA)

Record details

NPI number1164420717
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2005
Last updated in NPPESJuly 13, 2026

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