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

Michael J. Katsnelson, MD

Individual provider Vascular Neurology Physician · NPI 1013170067

Michael J. Katsnelson, MD is a Neurology in Marshfield, Wisconsin. Graduated from Drexel University College of Medicine in 2005, 21 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group, works from 4 locations, accepts Medicare assignment and offers telehealth. Licensed in Arkansas, Connecticut, Florida and Mississippi and 3 more.

Years since qualifying
21
Trained at
Drexel University College of Medicine
Licensed in
AR, CT, FL, MS, PA, TN
In the registry since
2008
Specialties on file
7
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

1000 N Oak Ave
Marshfield, WI 54449-5703
Phone: (715) 387-5511
Show map & directions

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

Additional practice locations (3)

  • 71 Haynes St, Manchester, CT 06040-4131 — (860) 646-1222
  • 3 Hospital Dr Ste 206, Lewisburg, PA 17837-9394 — (570) 522-9771
  • 8000 Towers Crescent Dr, Vienna, VA 22182-6207 — (866) 450-1918

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence 62700 (WI)
Vascular Neurology Physician Taxonomy 2084V0102X · Licence ME107144 (FL)
Neurology Physician Taxonomy 2084N0400X · Licence 63574 (CT)
Neurology Physician Taxonomy 2084N0400X · Licence E-8511 (AR)
Neurology Physician Taxonomy 2084N0400X · Licence 47044 (TN)
Neurology Physician Taxonomy 2084N0400X · Licence 22263 (MS)
Neurology Physician Taxonomy 2084N0400X · Licence MD435614 (PA)

Record details

NPI number1013170067
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 9, 2008
Last updated in NPPESApril 29, 2026
Certification dateApril 29, 2026
Mailing address1000 N Oak Ave, Marshfield, WI 54449-5703

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolDREXEL UNIVERSITY COLLEGE OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations31 on file with Medicare

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