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

Individual provider Psychiatry Physician · NPI 1487947503

John W Martyniuk, PHD, MD is a Psychiatry Physician in Harrisburg, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2011.

Licensed in
PA
In the registry since
2011
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

777 E Park Dr
Harrisburg, PA 17105
Phone: (717) 558-7819
Fax: (717) 558-7818
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence MD043470L (PA)

Record details

NPI number1487947503
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , MD
Sole proprietorNo
NPI enumeratedMay 23, 2011
Last updated in NPPESMay 23, 2011

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