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

Mark R. Ottolin, MD

Individual provider Cardiovascular Disease Physician · NPI 1265525729

Mark R. Ottolin, MD is a Cardiovascular Disease Physician in Naperville, Illinois. Licensed in Illinois. Registered with an NPI since 2006.

Licensed in
IL
In the registry since
2006
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

100 Spalding Dr Ste 212
Naperville, IL 60504-6552
Phone: (630) 357-4111
Fax: (630) 357-4644
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 036-064112 (IL)

Record details

NPI number1265525729
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 2, 2006
Last updated in NPPESSeptember 24, 2021
Certification dateSeptember 24, 2021
Mailing address1860 Paysphere Cir, Chicago, IL 60674-0018

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