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

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1194428177

Dr. John Nathaniel Diehl, MD, PHD is a Student in an Organized Health Care Education/Training Program in Philadelphia, Pennsylvania. Registered with an NPI since 2023.

In the registry since
2023
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Philadelphia, PA

No coordinates on file. Search this address in Google Maps

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X

Record details

NPI number1194428177
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMarch 27, 2023
Last updated in NPPESMarch 27, 2023
Certification dateMarch 27, 2023

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