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

Nathaniel Seth Laden, MD, MS

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1356316889

Nathaniel Seth Laden, MD, MS is a Thoracic Surgery in Milwaukee, Wisconsin. Graduated from University of Toledo College of Medicine in 1988, 38 years ago. Practices with Aspirus Wausau Hospital Inc, a 240-clinician group and accepts Medicare assignment. Licensed in Ohio and Wisconsin.

Years since qualifying
38
Trained at
University of Toledo College of Medicine
Licensed in
OH, WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

9200 W Wisconsin Ave Cardiothoracic Surgery
Milwaukee, WI 53226-3522
Phone: (414) 955-6900
Fax: (414) 955-6204
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 18081 (WI)
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Taxonomy 208G00000X · Licence 35.071969L (OH)

Record details

NPI number1356316889
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , MS
Sole proprietorNo
NPI enumeratedFebruary 20, 2006
Last updated in NPPESMay 2, 2016
Mailing address9200 W Wisconsin Ave, Cardiothoracic Surgery, Milwaukee, WI 53226-3522

Medicare enrollment

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

Medicare specialtyTHORACIC SURGERY
Medical schoolUNIVERSITY OF TOLEDO COLLEGE OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Aspirus Wausau Hospital Inc — 240 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Milwaukee