Based in South Bend, IN, Mark M Walsh, MD is listed in the NPI registry under internal medicine. Mark is also listed as specialising in emergency medical services. Medicare claims data shows Mark provided 381 services to 371 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Walsh is an internist in South Bend, IN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Internal Medicine”.
NPI registry
Dr. Walsh is listed at 801 E LASALLE EMERGENCY DEPARTMENT, South Bend, IN 46617. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (574) 237-7111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Walsh's National Provider Identifier is 1427048099. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Walsh has 21+ years experience. Registered with an NPI since 2005. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practised for longer than this.
NPI registry
According to Medicare billing data, Dr. Walsh provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Walsh. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
801 E LASALLE EMERGENCY DEPARTMENT
South Bend, IN 46617
381 services · 371 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
151 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
187 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
43 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileConnections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Same specialty, same city.
Providers in IN who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.