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

Mark J Schwartz, MD

Individual provider Internal Medicine Physician · NPI 1326156654

Mark J Schwartz, MD is a Hospitalist in Marshfield, Wisconsin. Graduated from Wayne State University School of Medicine in 1996, 30 years ago. Practices with Mchs Hospitals Inc, a 1,194-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
30
Trained at
Wayne State University School of Medicine
Licensed in
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.

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Practice location Address checks out

1000 N Oak Ave
Marshfield, WI 54449
Phone: (715) 387-5537
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 39152 (WI)
Internal Medicine Physician Taxonomy 207R00000X · Licence 39152 (WI)

Record details

NPI number1326156654
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 27, 2006
Last updated in NPPESAugust 28, 2025
Certification dateAugust 28, 2025
Mailing address1000 N Oak Ave, Marshfield, WI 54449-5777

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Also practisesINTERNAL MEDICINE
Medical schoolWAYNE STATE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice McHs Hospitals Inc — 1194 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Marshfield