MARK ERWIN LEWIS DNP, CRNA
NPI 1790456440
Nurse Anesthetist, Certified Registered in Randallstown, MD
About Mark Erwin Lewis Dnp, Crna NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK ERWIN LEWIS DNP, CRNA (NPI 1790456440) is an individual nurse anesthetist, certified registered in Randallstown, Maryland, licensed in Maryland (R208090) and active in the NPI registry since September 2021. He is affiliated with Northwest Hospital Center and is a graduate of Other (2021).
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
Mark Erwin Lewis Dnp, Crna 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
2Medicare enrollment records show Mark Lewis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Randallstown, MD 21133
- Reassigned Medicare billing, Maryland enrollment
- 135 clinicians in this Medicare group
Prince Frederick, MD 20678
- Reassigned Medicare billing, Maryland enrollment
- 468 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwest Hospital Center
Acute Care Hospitals · Randallstown, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21133 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.
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 Lewis's NPI number?
The NPI number for Mark Lewis is 1790456440. It was assigned to this individual provider in the NPPES registry on September 22, 2021.
Where is Mark Lewis located?
Mark Lewis practices at 5401 Old Court Rd, Randallstown, MD 21133. The listed phone number is (410) 521-2200.
What is Mark Lewis's specialty?
The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.
Is Mark Lewis enrolled in Medicare?
Yes. Mark Lewis 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 Mark Lewis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Lewis reassigns Medicare benefits to 2 organizations: Lifebridge Anesthesia Associates, LLC (Randallstown, MD) and North American Partners In Anesthesia Maryland LLC (Prince Frederick, MD). 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 Lewis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Mark Lewis affiliated with any hospitals?
According to CMS data, Mark Lewis is affiliated with Northwest Hospital Center.
When was this NPI record last updated?
The NPPES record for Mark Lewis was last updated on January 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Mark Erwin Lewis, DNP, CRNA · NPI 1790456440
Nurse Anesthetist, Certified Registered physician in Randallstown, Maryland. Individual provider, active in the CMS NPPES registry since September 22, 2021.
## Identity
- **NPI:** 1790456440 (Entity type: Individual)
- **Enumerated:** September 22, 2021
- **Primary specialty:** Nurse Anesthetist, Certified Registered · taxonomy 367500000X
- **State license:** R208090 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 5401 OLD COURT RD, Randallstown, MD 21133-5103
- **Phone:** (410) 521-2200
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Lifebridge Anesthesia Associates, LLC (NPI 1003992868, Randallstown, MD); North American Partners In Anesthesia Maryland LLC (NPI 1093707879, Prince Frederick, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** January 29, 2025
---
Source: [NPI Profile](https://npiprofile.com/npi/1790456440) · Data from the CMS NPPES public registry.