DR. MARK D OLSZYK MD
NPI 1295759207
Emergency Medicine in Westminster, MD
About Dr. Mark D Olszyk Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK D OLSZYK MD (NPI 1295759207) is an individual emergency medicine provider in Westminster, Maryland, licensed in Maryland (D0072926) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Mark D Olszyk Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21157 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WESTMINSTER, MD 21157
WESTMINSTER, MD 21157
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 Olszyk's NPI number?
The NPI number for Mark Olszyk is 1295759207. It was assigned to this individual provider in the NPPES registry on July 26, 2006.
Where is Mark Olszyk located?
Mark Olszyk practices at 200 Memorial Ave, Westminster, MD 21157. The listed phone number is (410) 871-6129.
What is Mark Olszyk's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Mark Olszyk enrolled in Medicare?
Yes. Mark Olszyk is registered in the Medicare PECOS enrollment system.
When was this NPI record last updated?
The NPPES record for Mark Olszyk was last updated on January 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.