Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Mark Louis Horn, MD, MPH

Individual provider Rheumatology Physician · NPI 1629106380

Dr. Mark Louis Horn, MD, MPH is a Rheumatology Physician in Tenafly, New Jersey. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MPH — Master of Public Health
A graduate degree in population health.

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Practice location Address checks out

124 Oxford Dr
Tenafly, NJ 07670-3116
Phone: (201) 871-9230
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Rheumatology Physician (primary) Taxonomy 207RR0500X · Licence 139526 (NY)

Record details

NPI number1629106380
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MPH
Sole proprietorNo
NPI enumeratedMarch 2, 2007
Last updated in NPPESAugust 17, 2009