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

Individual provider Internal Medicine Physician · NPI 1437207503

Dr. Louis A Katz, MD is an Internal Medicine Physician in New York, New York. Practices as a sole proprietor. Licensed in New Jersey and New York.

Licensed in
NJ, NY
In the registry since
2007
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

20 Fifth Ave
New York, NY 10011-8831
Phone: (212) 420-0011
Fax: (212) 529-4853
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 138140 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 25MA05495900 (NJ)

Record details

NPI number1437207503
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedJanuary 8, 2007
Last updated in NPPESFebruary 14, 2008

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