MARK M WALSH MD
NPI 1427048099
Emergency Medicine - Emergency Medical Services in South Bend, IN
About Mark M Walsh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK M WALSH MD (NPI 1427048099) is an individual emergency medical services provider in South Bend, Indiana, licensed in Indiana (01035916A) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 4
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mark M Walsh Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Mark Walsh reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mishawaka, IN 46544
- Reassigned Medicare billing, Indiana enrollment
- 384 clinicians in this Medicare group
Mishawaka, IN 46545
- Reassigned Medicare billing, Indiana enrollment
- 598 clinicians in this Medicare group
Elkhart, IN 46514
- Reassigned Medicare billing, Indiana enrollment
- 79 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Indiana enrollment
- 218 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46617 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Mark Walsh's NPI number?
The NPI number for Mark Walsh is 1427048099. It was assigned to this individual provider in the NPPES registry on October 25, 2005.
Where is Mark Walsh located?
Mark Walsh practices at 801 E Lasalle Emergency Department, South Bend, IN 46617. The listed phone number is (574) 237-7111.
What is Mark Walsh's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is Mark Walsh enrolled in Medicare?
Yes. Mark Walsh is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Mark Walsh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Walsh reassigns Medicare benefits to 4 organizations: Sound Physicians Of Indiana, LLC (Mishawaka, IN), Cep America LLC (Mishawaka, IN), Elite Emergency Physicians Inc (Elkhart, IN) and Hospitalist Medicine Physicians Of Indiana, LLC (Brentwood, TN). 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 Mark Walsh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Walsh accept?
Health plans from CareSource list Mark Walsh 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.
When was this NPI record last updated?
The NPPES record for Mark Walsh was last updated on October 15, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.
# Mark M Walsh, MD · NPI 1427048099
Emergency Medical Services physician in South Bend, Indiana. Individual provider, active in the CMS NPPES registry since October 25, 2005.
## Identity
- **NPI:** 1427048099 (Entity type: Individual)
- **Enumerated:** October 25, 2005
- **Primary specialty:** Emergency Medicine - Emergency Medical Services · taxonomy 207PE0004X
- **State license:** 01035916A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 801 E LASALLE, EMERGENCY DEPARTMENT, South Bend, IN 46617-2814
- **Phone:** (574) 237-7111 · **Fax:** (574) 273-1137
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Sound Physicians Of Indiana, LLC (NPI 1356687164, Mishawaka, IN); Cep America LLC (NPI 1811796006, Mishawaka, IN); Elite Emergency Physicians Inc (NPI 1932155371, Elkhart, IN); Hospitalist Medicine Physicians Of Indiana, LLC (NPI 1720416555, Brentwood, TN) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 15, 2008
- **Other identifiers:** Medicare ID-Type Unspecified 146470NNNN (IN); Medicare UPIN D33207 (IN); Medicare PIN 176490M (IN); and 1 more
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Source: [NPI Profile](https://npiprofile.com/npi/1427048099) · Data from the CMS NPPES public registry.