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

Dr. Mary S Maish, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1750316774

Dr. Mary S Maish, MD is a Thoracic Surgery in Lake Forest, Illinois. Graduated from Rush Medical College of Rush University in 1999, 27 years ago. Practices with Franciscan Physician Network, a 1,171-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Illinois, Indiana and Michigan.

Years since qualifying
27
Trained at
Rush Medical College of Rush University
Licensed in
IL, IN, MI
In the registry since
2006
Specialties on file
3
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

800 N Westmoreland Rd Ste 100
Lake Forest, IL 60045-1671
Phone: (224) 271-4650
Fax: (224) 234-4336
Show map & directions

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

Additional practice locations (3)

  • 39141 Civic Center Dr, Fremont, CA 94538-5818 — (510) 248-1400
  • 3900 St Francis Way Ste 200, Lafayette, IN 47905-4940 — (765) 775-2800
  • 601 John St Ste M-460, Kalamazoo, MI 49007-5355 — (269) 341-7333

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 036147674 (IL)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence 4301513301 (MI)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence 01096488A (IN)

Record details

NPI number1750316774
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESAugust 25, 2025
Certification dateAugust 25, 2025

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Medical schoolRUSH MEDICAL COLLEGE OF RUSH UNIVERSITY
Graduated 1999 (27 years in practice)
Group practice Franciscan Physician Network — 1171 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare