MARK ROBERT GILLIS MD
NPI 1154390177
Anesthesiology in Layton, UT
About Mark Robert Gillis Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK ROBERT GILLIS MD (NPI 1154390177) is an individual anesthesiology provider in Layton, Utah, licensed in Oregon (MD176903) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Sky Lakes Medical Center, and is a graduate of University Of New Mexico School Of Medicine (1989).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Accepted Insurance
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 Robert Gillis Md 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
3Medicare enrollment records show Mark Gillis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Klamath Falls, OR 97601
- Reassigned Medicare billing, Oregon enrollment
- 355 clinicians in this Medicare group
Roseburg, OR 97471
- Reassigned Medicare billing, Oregon enrollment
- 82 clinicians in this Medicare group
Coos Bay, OR 97420
- Reassigned Medicare billing, Oregon enrollment
- 327 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 6
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.
Sky Lakes Medical Center
Acute Care Hospitals · Klamath Falls, ORBay Area Hospital
Acute Care Hospitals · Coos Bay, OROther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LAYTON, UT 84041
LAYTON, UT 84041
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 Gillis's NPI number?
The NPI number for Mark Gillis is 1154390177. It was assigned to this individual provider in the NPPES registry on March 14, 2006.
Where is Mark Gillis located?
Mark Gillis practices at 1600 W Antelope Dr, Layton, UT 84041. The listed phone number is (801) 807-1000.
What is Mark Gillis's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Mark Gillis enrolled in Medicare?
Yes. Mark Gillis 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 Gillis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Gillis reassigns Medicare benefits to 3 organizations: Sky Lakes Medical Center Inc (Klamath Falls, OR), Cep America - Anesthesia PC (Roseburg, OR) and Bay Area Hospital District (Coos Bay, OR). 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 Gillis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Gillis accept?
Health plans from Moda Health Plan, Inc. list Mark Gillis as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Mark Gillis affiliated with any hospitals?
According to CMS data, Mark Gillis is affiliated with Sky Lakes Medical Center and Bay Area Hospital.
When was this NPI record last updated?
The NPPES record for Mark Gillis was last updated on June 23, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Mark Robert Gillis, MD · NPI 1154390177
Anesthesiology physician in Layton, Utah. Individual provider, active in the CMS NPPES registry since March 14, 2006.
## Identity
- **NPI:** 1154390177 (Entity type: Individual)
- **Enumerated:** March 14, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD176903 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 1600 W ANTELOPE DR, Layton, UT 84041
- **Phone:** (801) 807-1000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Sky Lakes Medical Center Inc (NPI 1659340370, Klamath Falls, OR); Cep America - Anesthesia PC (NPI 1235842196, Roseburg, OR); Bay Area Hospital District (NPI 1225016561, Coos Bay, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of New Mexico School Of Medicine, class of 1989
## Record status
- **NPPES last updated:** June 23, 2023
- **Other identifiers:** Medicaid D4357 (UT)
---
Source: [NPI Profile](https://npiprofile.com/npi/1154390177) · Data from the CMS NPPES public registry.