MITCHELL FELDER MD
NPI 1891767042
Psychiatry & Neurology - Neurology in Marshfield, WI
About Mitchell Felder Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MITCHELL FELDER MD (NPI 1891767042) is an individual neurology provider in Marshfield, Wisconsin, licensed in South Carolina (40222) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Christus St Vincent Regional Medical Center, and maintains a secondary practice location in Sayre.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Mitchell Felder Md 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
4Medicare enrollment records show Mitchell Felder reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Youngwood, PA 15697
- Reassigned Medicare billing, Pennsylvania enrollment
- 669 clinicians in this Medicare group
Hanover, PA 17331
- Reassigned Medicare billing, Pennsylvania enrollment
- 1,902 clinicians in this Medicare group
Santa Fe, NM 87507
- Reassigned Medicare billing, New Mexico enrollment
- 399 clinicians in this Medicare group
Altoona, PA 16602
- Reassigned Medicare billing, Pennsylvania enrollment
- 338 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Christus St Vincent Regional Medical Center
Acute Care Hospitals · Santa Fe, NMPhysician 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
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 Mitchell Felder's NPI number?
The NPI number for Mitchell Felder is 1891767042. It was assigned to this individual provider in the NPPES registry on February 2, 2006.
Where is Mitchell Felder located?
Mitchell Felder practices at 1000 N Oak Avenue, Marshfield, WI 54449. The listed phone number is (715) 387-5511.
What is Mitchell Felder's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurology, with taxonomy code 2084N0400X.
Is Mitchell Felder enrolled in Medicare?
Yes. Mitchell Felder 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 Mitchell Felder's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mitchell Felder reassigns Medicare benefits to 4 organizations: Excela Health Physician Practices, Inc. (Youngwood, PA), Pinnacle Health Medical Services (Hanover, PA), St. Vincent Hospital (Santa Fe, NM) and Upmc Altoona Regional Health Services, Inc (Altoona, PA). 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 Mitchell Felder's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mitchell Felder accept?
Health plans from BlueCross BlueShield of South Carolina list Mitchell Felder 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 Mitchell Felder affiliated with any hospitals?
According to CMS data, Mitchell Felder is affiliated with Christus St Vincent Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Mitchell Felder was last updated on September 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Mitchell Felder, MD · NPI 1891767042
Neurology physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since February 2, 2006.
## Identity
- **NPI:** 1891767042 (Entity type: Individual)
- **Enumerated:** February 2, 2006
- **Primary specialty:** Psychiatry & Neurology - Neurology · taxonomy 2084N0400X
- **State license:** 40222 (South Carolina)
- **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:** 4 organizations under Medicare reassignment (form CMS-855R): Excela Health Physician Practices, Inc. (NPI 1013355635, Youngwood, PA); Pinnacle Health Medical Services (NPI 1003391418, Hanover, PA); St. Vincent Hospital (NPI 1053634170, Santa Fe, NM); Upmc Altoona Regional Health Services, Inc (NPI 1396724217, Altoona, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1983
## Record status
- **NPPES last updated:** September 10, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1891767042) · Data from the CMS NPPES public registry.