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

Maria Holstrom-Mercader

Individual provider Emergency Medicine Physician · NPI 1306536339

Maria Holstrom-Mercader is an Emergency Medicine in Libertyville, Illinois. Graduated from Pennsylvania State University College of Medicine in 2023, 3 years ago. Practices as a sole proprietor. Licensed in Illinois.

Years since qualifying
3
Trained at
Pennsylvania State University College of Medicine
Licensed in
IL
In the registry since
2023
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Practice location Address checks out

801 S Milwaukee Ave
Libertyville, IL 60048-3204
Phone: (847) 362-2900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 036.178321 (IL)

Record details

NPI number1306536339
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedMay 12, 2023
Last updated in NPPESJune 18, 2026
Certification dateJune 18, 2026
Mailing address801 S Milwaukee Ave, Libertyville, IL 60048-3204

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2023 (3 years in practice)
Accepts Medicare assignment Not indicated
Practice locations3 on file with Medicare

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