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

Individual provider Obstetrics & Gynecology Physician · NPI 1801277736

Karissa C Hammer, MD is an Obstetrics & Gynecology Physician in Chicago, Illinois. Practices as a sole proprietor. Licensed in Illinois and Massachusetts.

Licensed in
IL, MA
In the registry since
2015
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

680 N Lake Shore Dr Ste 100
Chicago, IL 60611
Phone: (312) 288-6420
Fax: (312) 288-6421
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Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 278746 (MA)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence 125067366 (IL)

Record details

NPI number1801277736
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJune 16, 2015
Last updated in NPPESJuly 25, 2025

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