Mark Sieminski, MD is a healthcare provider in Cheektowaga, NY specialising in emergency medicine. Mark trained at University of Virginia School of Medicine, graduating in 2005.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Sieminski is an emergency medicine in Cheektowaga, NY. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
Dr. Sieminski is listed at 305 CAYUGA RD SUITE 190, Cheektowaga, NY 14225. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (716) 580-1813. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Sieminski's National Provider Identifier is 1003057779. 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. Sieminski attended University of Virginia School of Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
Dr. Sieminski has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Sieminski 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. Sieminski. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
305 CAYUGA RD SUITE 190
Cheektowaga, NY 14225
312 services · 307 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
69 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
172 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
39 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
32 |
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.
Same specialty, same street address — most likely the same department or group.
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.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
Providers in NY 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.