Dr. Mark C. Phillips, MD
- Medicare services, 2024
- 1,013
- Medicare patients, 2024
- 142
- Part D claims, 2024
- 4,628
- Hospital affiliations
- 2
- Industry payments
- $1,197
- Practice address
- 570 Chautauqua Blvd, Valley City, ND 58072
- Practice phone
- Call (701) 845-6400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Phillips' professional email, personal email and mobile number
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Dr. Mark C. Phillips is a general practice physician in Roseburg, Oregon
Dr. Phillips practices at CHI Mercy Health in Valley City, North Dakota, part of CommonSpirit Health.
Dr. Phillips' NPI, 1275568735, was assigned on July 12, 2006. Dr. Phillips graduated from University of Southern California Keck School of Medicine in 1986. Dr. Phillips holds Oregon license MD18731.
- NPI
- 1275568735NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527193416
- NPI enumeration date
- July 12, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (701) 845-6400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark C. Phillips practices in Valley City and Roseburg
Dr. Phillips' primary practice is CHI Mercy Health, at 570 Chautauqua Blvd, Valley City, ND 58072 in Barnes County. The practice phone is (701) 845-6400. Dr. Phillips also practices at CHI Mercy Health, 2700 NW Stewart Pkwy, Roseburg, OR 97471.
- CHI Mercy HealthPrimary570 Chautauqua Blvd, Valley City, ND 58072 · Barnes CountyPhone(701) 845-6400
- CHI Mercy Health2700 NW Stewart Pkwy, Roseburg, OR 97471 · Douglas CountyPhone(541) 677-4845
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Mark C. Phillips is affiliated with 4 sites of care
Dr. Phillips' primary practice is CHI Mercy Health in Valley City, North Dakota, part of CommonSpirit Health. Dr. Phillips is also affiliated with CHI Mercy Health. Dmand AI also links Dr. Phillips to 1 more home health agency and 1 hospice, each 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 C. Phillips' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Phillips practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CHI Mercy Health | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark C. Phillips is one of 59 general practice physicians in Oregon
General practice is Dr. Phillips' primary specialty in the NPI Registry, under taxonomy code 208D00000X. Dr. Phillips is licensed in Oregon.
Specialties and state licenses
- General practice, OregonPrimary
General practice physicians near Dr. Phillips
Counts of general practice physicians 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 C. Phillips billed Medicare for 1,013 services in 2024
CMS data shows 1,013 Medicare services from Dr. Phillips across 9 procedure codes in 2024, for 142 Medicare patients. Medicare paid $59,046 for them. Every service was in an office.
Dr. Phillips' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9222024: 74220%
- Tests and treatments
- 2023: 1572024: 11725%
- Other services
- 2023: 1462024: 9336%
- Lab and pathology
- 2023: 492024: 6124%
Dr. Phillips compared with the Oregon median for general practice physicians, 2024
- Dr. Phillips
- Oregon median
- Medicare services
- 1,013vs 2054.9 times
- Medicare patients
- 142vs 11622% above
- Part D claims
- 4,050vs 9045.0 times
Medians across 54 general practice physicians in Oregon with Dmand AI profiles that report each measure.
Dr. Phillips' 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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Phillips and other general practice physicians in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark C. Phillips treated 142 Medicare patients in 2024, average age 76
CMS counts 142 Medicare patients who saw Dr. Phillips in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high cholesterol, and 62% have high blood pressure. Their average risk score is 0.87, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Phillips' median patient age at 68, with 54% women.
Dr. Phillips' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Phillips' Medicare patients by sex, 2024
- Women7553%
- Men6747%
Chronic conditions among Dr. Phillips' Medicare patients, 2024
- High cholesterol75%
- High blood pressure62%
- Arthritis37%
- Anxiety20%
- Cancer20%
- Asthma19%
- Atrial fibrillation19%
- Ischemic heart disease19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Phillips' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark C. Phillips wrote 4,628 Medicare Part D claims in 2024
In 2024, Dr. Phillips wrote 4,628 Medicare Part D claims for 274 patients. 90% of them were for generic drugs. CMS names the drug for 4,050 of them, across 97 drugs with 11 or more claims each, at $240,408 in total drug cost. In 2023, CMS named 4,023 claims across 106 drugs.
Dr. Phillips' Part D claims by kind of drug, 2024
- Generic4,151 claims90%
- Brand-name457 claims10%
- Other20 claims0%
Dr. Phillips' most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Phillips' Part D claims, 2024
- Opioids7%329 of 4,628 claims
- Antibiotics4%173 of 4,628 claims
- Antipsychotics, patients 65 and over1%35 of 4,628 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,0232024: 4,0501%
Drugs named by CMS: 97 in 2024, 106 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Mark C. Phillips takes part in Medicare
Dr. Phillips accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark C. Phillips received $1,197 in industry payments from 2016 to 2025
CMS Open Payments shows 52 general payments to Dr. Phillips from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Janssen Pharmaceuticals, Inc paid the most, $713.
General payments to Dr. Phillips by program year, 2016 to 2025
General payments to Dr. Phillips by kind, 2016 to 2025
- Food and beverage$1,17098%
- Education$272%
Companies that paid Dr. Phillips the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mark C. Phillips graduated from University of Southern California Keck School of Medicine
Dr. Phillips graduated from University of Southern California Keck School of Medicine in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mark C. Phillips'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDmand AI Practice 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) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Doctors and Clinicians Utilization Data (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 C. Phillips
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 C. Phillips' NPI number?
Dr. Mark C. Phillips' NPI number is 1275568735. It was assigned on July 12, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark C. Phillips?
Dr. Mark C. Phillips is a general practice physician in Roseburg, Oregon. The primary specialty in the NPI Registry is General Practice Physician (taxonomy code 208D00000X).
Where does Dr. Mark C. Phillips practice?
Dr. Phillips practices at 570 Chautauqua Blvd, Valley City, ND 58072. Dr. Phillips also practices at 2700 NW Stewart Pkwy, Roseburg, OR 97471. Dr. Phillips' primary practice is CHI Mercy Health in Valley City, North Dakota, part of CommonSpirit Health. Dmand AI also links Dr. Phillips to 1 home health agency and 1 hospice.
What is Dr. Mark C. Phillips' office phone number?
The practice phone on file for Dr. Phillips is (701) 845-6400.
What is Dr. Mark C. Phillips' medical license number?
Dr. Phillips holds Oregon license MD18731.
Which hospitals is Dr. Mark C. Phillips affiliated with?
Dr. Phillips practices at CHI Mercy Health in Valley City, North Dakota. Dr. Phillips is also affiliated with CHI Mercy Health.
Does Dr. Mark C. Phillips accept Medicare?
Yes. CMS data shows Dr. Phillips billed Medicare for 1,013 services in 2024, and Dr. Phillips accepts Medicare assignment.
How many Medicare patients does Dr. Mark C. Phillips see?
CMS counts 142 Medicare patients who saw Dr. Phillips in 2024, with an average age of 76.
What services does Dr. Mark C. Phillips bill to Medicare?
In 2024, Dr. Phillips' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and vaccine or vaccine administration (90656).
Where did Dr. Mark C. Phillips go to medical school?
Dr. Phillips graduated from University of Southern California Keck School of Medicine in 1986.
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What drugs does Dr. Mark C. Phillips prescribe most?
In 2024 Medicare Part D data, Dr. Phillips' most prescribed drugs by claims were Lisinopril, Levothyroxine Sodium and Potassium Chloride.
Has Dr. Mark C. Phillips received payments from drug or device companies?
CMS Open Payments shows $1,197 in general payments to Dr. Phillips from 10 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Mark C. Phillips been practicing?
Dr. Phillips graduated from medical school in 1986, 40 years ago.
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