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

Individual provider Internal Medicine Physician · NPI 1922122993

Dr. Marilyn Orenstein, MD is an Internal Medicine Physician in Tucson, Arizona. Practices as a sole proprietor. Licensed in Arizona and New York.

Licensed in
AZ, NY
In the registry since
2007
Specialties on file
4
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

8391 E Cresthill Dr
Tucson, AZ 85750-2410
Phone: (520) 529-1972
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 41523 (AZ)
Internal Medicine Physician Taxonomy 207R00000X · Licence 41523 (AZ)
Pulmonary Disease Physician Taxonomy 207RP1001X · Licence 135961 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 135961 (NY)

Record details

NPI number1922122993
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedMarch 16, 2007
Last updated in NPPESMarch 7, 2023

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