Dr. Mark Robert Gillis, MD
- Medicare services, 2024
- 90
- Medicare patients, 2024
- 169
- Hospital affiliations
- 2
- Industry payments
- $16
- Medical groups
- 2
- Practice address
- 2865 Daggett Avenue, Klamath Falls, OR 97601
- Practice phone
- Call (541) 882-6311
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Gillis' professional email, personal email and mobile number
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Dr. Mark Robert Gillis is an anesthesiologist in Klamath Falls, Oregon
Dr. Gillis practices at Sky Lakes Medical Center in Klamath Falls, Oregon, part of Sky Lakes Medical Center.
Dr. Gillis' NPI, 1154390177, was assigned on March 14, 2006. Dr. Gillis graduated from University of New Mexico School of Medicine in 1989. Dr. Gillis holds Oregon license MD176903.
- NPI
- 1154390177NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608841325
- NPI enumeration date
- March 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (541) 882-6311
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Robert Gillis practices at Sky Lakes Medical Center in Klamath Falls, Oregon
Dr. Gillis' primary practice is Sky Lakes Medical Center, at 2865 Daggett Avenue, Klamath Falls, OR 97601 in Klamath County. The practice phone is (541) 882-6311.
- Sky Lakes Medical Center2865 Daggett Avenue, Klamath Falls, OR 97601 · Klamath CountyPhone(541) 882-6311
Source: Dmand AI Affiliation Data
Dr. Mark Robert Gillis is affiliated with 2 sites of care and 2 medical groups
Dr. Gillis' primary practice is Sky Lakes Medical Center in Klamath Falls, Oregon, part of Sky Lakes Medical Center. Dr. Gillis is also affiliated with Bay Area Hospital. The medical group on file is CEP America. Dmand AI also links Dr. Gillis to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Robert Gillis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Gillis practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sky Lakes Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Sky Lakes Medical Center and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Mark Robert Gillis is one of 797 anesthesiologists in Oregon
Anesthesiology is Dr. Gillis' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Gillis is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Gillis' licenses on file in 2 states: Oregon and Utah.
Specialties and state licenses
- Anesthesiology, OregonPrimary
- Utah license
Anesthesiologists near Dr. Gillis
Counts of anesthesiologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mark Robert Gillis billed Medicare for 90 services in 2024
CMS data shows 90 Medicare services from Dr. Gillis across 6 procedure codes in 2024, for 169 Medicare patients. Medicare paid $13,100 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Gillis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 232024: 90291%
- Imaging
- 2023: 142024: 0100%
Dr. Gillis compared with the Oregon median for anesthesiologists, 2024
- Dr. Gillis
- Oregon median
- Medicare services
- 90vs 392.3 times
- Medicare patients
- 169vs 9284% above
Medians across 720 anesthesiologists in Oregon with Dmand AI profiles that report each measure.
Dr. Gillis' most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Gillis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Gillis and other anesthesiologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Robert Gillis treated 169 Medicare patients in 2024, average age 72
CMS counts 169 Medicare patients who saw Dr. Gillis in 2024. The largest group is 65 to 74, with 76 patients. 75% of them have high blood pressure, and 70% have high cholesterol. 30% are also on Medicaid. Their average risk score is 1.31, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Gillis' median patient age at 44, with 61% women.
Dr. Gillis' Medicare patients by age, 2024
Dr. Gillis' Medicare patients by sex, 2024
- Women10059%
- Men6941%
Chronic conditions among Dr. Gillis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
- Arthritis51%
- Diabetes38%
- Mood disorders31%
- Depression27%
- Cancer24%
- Anxiety23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Gillis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. Mark Robert Gillis takes part in Medicare
Dr. Gillis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark Robert Gillis received $16 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Gillis from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $16.
Companies that paid Dr. Gillis the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark Robert Gillis graduated from University of New Mexico School of Medicine
Dr. Gillis graduated from University of New Mexico School of Medicine in 1989.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark Robert Gillis's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mark Robert Gillis
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mark Robert Gillis' NPI number?
Dr. Mark Robert Gillis' NPI number is 1154390177. It was assigned on March 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Robert Gillis?
Dr. Mark Robert Gillis is an anesthesiologist in Klamath Falls, Oregon. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Mark Robert Gillis practice?
Dr. Gillis practices at 2865 Daggett Avenue, Klamath Falls, OR 97601. Dr. Gillis' primary practice is Sky Lakes Medical Center in Klamath Falls, Oregon, part of Sky Lakes Medical Center. Dmand AI also links Dr. Gillis to 1 medical group.
What is Dr. Mark Robert Gillis' office phone number?
The practice phone on file for Dr. Gillis is (541) 882-6311.
What is Dr. Mark Robert Gillis' medical license number?
Dr. Gillis holds Oregon license MD176903, one of the licenses on file in 2 states.
Which states has Dr. Mark Robert Gillis been licensed in?
Dmand AI has state licenses on file for Dr. Gillis in Oregon and Utah.
Which hospitals is Dr. Mark Robert Gillis affiliated with?
Dr. Gillis practices at Sky Lakes Medical Center in Klamath Falls, Oregon. Dr. Gillis is also affiliated with Bay Area Hospital.
What medical group is Dr. Mark Robert Gillis part of?
Dr. Gillis is linked to CEP America. Dmand AI links Dr. Gillis to 1 more medical group.
Does Dr. Mark Robert Gillis accept Medicare?
Yes. CMS data shows Dr. Gillis billed Medicare for 90 services in 2024, and Dr. Gillis accepts Medicare assignment.
How many Medicare patients does Dr. Mark Robert Gillis see?
CMS counts 169 Medicare patients who saw Dr. Gillis in 2024, with an average age of 72.
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Is Dr. Mark Robert Gillis board certified?
Yes. Dr. Gillis is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Mark Robert Gillis bill to Medicare?
In 2024, Dr. Gillis' most billed Medicare services were anesthesia (00811), anesthesia (00142) and anesthesia (00790).
Where did Dr. Mark Robert Gillis go to medical school?
Dr. Gillis graduated from University of New Mexico School of Medicine in 1989.
Has Dr. Mark Robert Gillis received payments from drug or device companies?
CMS Open Payments shows $16 in general payments to Dr. Gillis from 1 company from 2018 to 2018. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Mark Robert Gillis been practicing?
Dr. Gillis graduated from medical school in 1989, 37 years ago.
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