MICHAEL J. KATSNELSON M.D.
NPI 1013170067
Psychiatry & Neurology - Neurology in Marshfield, WI
About Michael J. Katsnelson M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MICHAEL J. KATSNELSON M.D. (NPI 1013170067) is an individual neurology provider in Marshfield, Wisconsin, licensed in Wisconsin (62700) and active in the NPI registry since July 2008. He is enrolled in Medicare PECOS, is affiliated with Baptist Memorial Hospital North Ms, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Michael J. Katsnelson M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
14Medicare enrollment records show Michael Katsnelson reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,476 clinicians in this Medicare group
Waupun, WI 53963
- Reassigned Medicare billing, Wisconsin enrollment
- 1,447 clinicians in this Medicare group
Grove City, OH 43123
- Reassigned Medicare billing, Ohio enrollment
- 258 clinicians in this Medicare group
Jonesboro, AR 72405
- Reassigned Medicare billing, Arkansas enrollment
- 439 clinicians in this Medicare group
Memphis, TN 38125
- Reassigned Medicare billing, Arkansas, Mississippi and Tennessee enrollments
- 95 clinicians in this Medicare group
Mercersburg, PA 17236
- Reassigned Medicare billing, Pennsylvania enrollment
- 3,080 clinicians in this Medicare group
Lewisburg, PA 17837
- Reassigned Medicare billing, Pennsylvania enrollment
- 303 clinicians in this Medicare group
Mechanicsburg, PA 17050
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,216 clinicians in this Medicare group
Morristown, NJ 07960
- Reassigned Medicare billing, New Jersey enrollment
- 1,699 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Baptist Memorial Hospital North Ms
Acute Care Hospitals · Oxford, MSBaptist Memorial Hospital Desoto
Acute Care Hospitals · Southaven, MSBaptist Memorial Hospital Union City
Acute Care Hospitals · Union City, TNMarshfield Medical Center
Acute Care Hospitals · Marshfield, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 54449 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 16
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
MARSHFIELD, WI 54449
MARSHFIELD, WI 54449
MARSHFIELD, WI 54449
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Michael Katsnelson's NPI number?
The NPI number for Michael Katsnelson is 1013170067. It was assigned to this individual provider in the NPPES registry on July 9, 2008.
Where is Michael Katsnelson located?
Michael Katsnelson practices at 1000 N Oak Avenue, Marshfield, WI 54449. The listed phone number is (715) 387-5511.
What is Michael Katsnelson's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Michael Katsnelson enrolled in Medicare?
Yes. Michael Katsnelson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Michael Katsnelson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Katsnelson reassigns Medicare benefits to 14 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI), Beaver Dam Community Hospitals Inc (Waupun, WI), Mount Carmel Health System (Grove City, OH), Northeast Arkansas Clinic Charitable Foundation, Inc. (Jonesboro, AR) and 9 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Michael Katsnelson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Katsnelson accept?
Health plans from Anthem Blue Cross and Blue Shield, Antidote Health Plan of Ohio, Inc., Health Advantage, Molina Healthcare and Octave and 4 other insurers list Michael Katsnelson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Michael Katsnelson affiliated with any hospitals?
According to CMS data, Michael Katsnelson is affiliated with Baptist Memorial Hospital North Ms, Baptist Memorial Hospital Desoto, Baptist Memorial Hospital Union City and Marshfield Medical Center.
When was this NPI record last updated?
The NPPES record for Michael Katsnelson was last updated on April 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Michael J. Katsnelson, M.D. · NPI 1013170067
Neurology physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since July 9, 2008.
## Identity
- **NPI:** 1013170067 (Entity type: Individual)
- **Enumerated:** July 9, 2008
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 62700 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 N OAK AVENUE, Marshfield, WI 54449-5703
- **Phone:** (715) 387-5511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 14 organizations under Medicare reassignment (form CMS-855R): Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Mchs Hospitals Inc (NPI 1093221434, Marshfield, WI); Beaver Dam Community Hospitals Inc (NPI 1629374780, Waupun, WI); Mount Carmel Health System (NPI 1811975279, Grove City, OH); Northeast Arkansas Clinic Charitable Foundation, Inc. (NPI 1417721689, Jonesboro, AR); and 9 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Drexel University College Of Medicine, class of 2005
## Record status
- **NPPES last updated:** April 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1013170067) · Data from the CMS NPPES public registry.