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

Dr. Patricia A Merwick, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1336117084

Dr. Patricia A Merwick, MD is a Geriatric Medicine (Internal Medicine) Physician in Elmhurst, 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.

See every abbreviation used in this directory →

Practice location Address checks out

533 W North Ave Ste 101
Elmhurst, IL 60126-2135
Phone: (630) 279-8771
Fax: (630) 279-8576
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 036045874 (IL)

Record details

NPI number1336117084
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 9, 2006
Last updated in NPPESDecember 26, 2019
Certification dateDecember 26, 2019