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

Dr. Christopher Sheridan Ryckman, MD

Individual provider Critical Care Medicine (Internal Medicine) Physician · NPI 1912984105

Dr. Christopher Sheridan Ryckman, MD is a Critical Care Medicine (Internal Medicine) Physician in Lancaster, Ohio. Licensed in Ohio. Registered with an NPI since 2005.

Licensed in
OH
In the registry since
2005
Specialties on file
2
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

110 N Ewing St
Lancaster, OH 43130-3307
Phone: (740) 687-5864
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Critical Care Medicine (Internal Medicine) Physician (primary) Taxonomy 207RC0200X · Licence 048474 (OH)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 048474 (OH)

Record details

NPI number1912984105
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 28, 2005
Last updated in NPPESJuly 13, 2026

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