ZAIUS MARSALEK CRNP
NPI 1326556291
Nurse Practitioner - Acute Care in Towson, MD
About Zaius Marsalek Crnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ZAIUS MARSALEK CRNP (NPI 1326556291) is an individual acute care provider in Towson, Maryland, licensed in Maryland (R181521) and active in the NPI registry since January 2018. He is enrolled in Medicare PECOS, is affiliated with Medstar Montgomery Medical Center, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses
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
Zaius Marsalek Crnp 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
7Medicare enrollment records show Zaius Marsalek reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Towson, MD 21204
- Reassigned Medicare billing, Maryland enrollment
- 501 clinicians in this Medicare group
Towson, MD 21286
- Reassigned Medicare billing, Maryland enrollment
- 317 clinicians in this Medicare group
Baltimore, MD 21239
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- 3,530 clinicians in this Medicare group
Baltimore, MD 21209
- Reassigned Medicare billing, Maryland enrollment
- 27 clinicians in this Medicare group
Lutherville, MD 21093
- Reassigned Medicare billing, Maryland and District of Columbia enrollments
- Also billed through NPI 1255359972 (District of Columbia)
- 952 clinicians in this Medicare group
Cumberland, MD 21502
- Reassigned Medicare billing, Maryland enrollment
- 318 clinicians in this Medicare group
Aventura, FL 33180
- Reassigned Medicare billing, Virginia enrollment
- 88 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
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Medstar Montgomery Medical Center
Acute Care Hospitals · Olney, MDWestern Maryland Regional Medical Center
Acute Care Hospitals · Cumberland, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
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 Zaius Marsalek's NPI number?
The NPI number for Zaius Marsalek is 1326556291. It was assigned to this individual provider in the NPPES registry on January 13, 2018.
Where is Zaius Marsalek located?
Zaius Marsalek practices at 7601 Osler Dr, Towson, MD 21204. The listed phone number is (410) 292-3977.
What is Zaius Marsalek's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.
Is Zaius Marsalek enrolled in Medicare?
Yes. Zaius Marsalek 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 Zaius Marsalek's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Zaius Marsalek reassigns Medicare benefits to 7 organizations: University Of Maryland St. Joseph Medical Group, LLC (Towson, MD), Lifebridge Community Physicians, Inc (Towson, MD), Medstar Medical Group II LLC (Baltimore, MD), Lifebridge Orthopedic Specialists, LLC (Baltimore, MD), Johns Hopkins Community Physicians (Lutherville, MD) and 2 more organizations, listed in the Medicare section above. 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 Zaius Marsalek's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Zaius Marsalek affiliated with any hospitals?
According to CMS data, Zaius Marsalek is affiliated with Medstar Montgomery Medical Center and Western Maryland Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Zaius Marsalek was last updated on September 17, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Zaius Marsalek, CRNP · NPI 1326556291
Acute Care physician in Towson, Maryland. Individual provider, active in the CMS NPPES registry since January 13, 2018.
## Identity
- **NPI:** 1326556291 (Entity type: Individual)
- **Enumerated:** January 13, 2018
- **Primary specialty:** Nurse Practitioner - Acute Care · taxonomy 363LA2100X
- **State license:** R181521 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 7601 OSLER DR, Towson, MD 21204-7700
- **Phone:** (410) 292-3977
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): University Of Maryland St. Joseph Medical Group, LLC (NPI 1053816074, Towson, MD); Lifebridge Community Physicians, Inc (NPI 1790129054, Towson, MD); Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD); Lifebridge Orthopedic Specialists, LLC (NPI 1841696697, Baltimore, MD); Johns Hopkins Community Physicians (NPI 1144041203, Lutherville, MD); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** September 17, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1326556291) · Data from the CMS NPPES public registry.