Dr. Christopher Joseph Markus, DO
- Medicare services, 2024
- 136
- Medicare patients, 2024
- 135
- Part D claims, 2024
- 27
- MIPS score, 2024
- 97
- Hospital affiliations
- 1
- Practice address
- One Medical Plaza, Roseville, CA 95661
- Practice phone
- Call (916) 781-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Markus' professional email, personal email and mobile number
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Dr. Christopher Joseph Markus is an emergency medicine physician in Roseville, California
Dr. Markus practices at Sutter Roseville Medical Center in Roseville, California, part of Sutter Health.
Dr. Markus' NPI, 1891717427, was assigned on July 24, 2006. Dr. Markus graduated from Chicago College of Osteopathic Medicine at Midwestern University in 1993. Dr. Markus holds California license 20A7300.
- NPI
- 1891717427NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789623703
- NPI enumeration date
- July 24, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (916) 781-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Christopher Joseph Markus practices at 2 locations in Roseville, California
Dr. Markus' primary practice is Sutter Roseville Medical Center, at One Medical Plaza, Roseville, CA 95661 in Placer County. The practice phone is (916) 781-1000. Dr. Markus also practices at Sutter Roseville Medical Center, 1 Medical Plz, Roseville, CA 95661.
- Sutter Roseville Medical CenterPrimaryOne Medical Plaza, Roseville, CA 95661 · Placer CountyPhone(916) 781-1000
- Sutter Roseville Medical Center1 Medical Plz, Roseville, CA 95661 · Placer CountyPhone(800) 353-3369
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Dr. Christopher Joseph Markus is affiliated with 1 site of care and 2 medical groups
Dr. Markus' primary practice is Sutter Roseville Medical Center in Roseville, California, part of Sutter Health. The medical group on file is Vituity. Dmand AI also links Dr. Markus 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. Christopher Joseph Markus' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markus practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Roseville Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Christopher Joseph Markus is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Markus' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Markus is board certified in emergency medicine by the American Board of Emergency Medicine. Dr. Markus is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Markus
Counts of emergency medicine 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. Christopher Joseph Markus billed Medicare for 136 services in 2024
CMS data shows 136 Medicare services from Dr. Markus across 5 procedure codes in 2024, for 135 Medicare patients. Medicare paid $19,014 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Markus' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2142024: 13636%
Dr. Markus compared with the California median for emergency medicine physicians, 2024
- Dr. Markus
- California median
- Medicare services
- 136vs 26549% below
- Medicare patients
- 135vs 24344% below
- Part D claims
- 61vs 62Close to median
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Markus' 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. Markus and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Christopher Joseph Markus treated 135 Medicare patients in 2024, average age 78
CMS counts 135 Medicare patients who saw Dr. Markus in 2024. The largest group is 75 to 84, with 60 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.17, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Markus' median patient age at 62, with 63% women.
Dr. Markus' Medicare patients by age, 2024
Dr. Markus' Medicare patients by sex, 2024
- Women6951%
- Men6649%
Chronic conditions among Dr. Markus' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis63%
- Ischemic heart disease49%
- Chronic kidney disease47%
- Atrial fibrillation42%
- Diabetes41%
- Mood disorders39%
Share of Medicare patients with each condition. A patient can have several.
Dr. Markus' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women63%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Christopher Joseph Markus wrote 27 Medicare Part D claims in 2024
In 2024, Dr. Markus wrote 27 Medicare Part D claims for 17 patients. 89% of them were for generic drugs. They cover 4 drugs, with $573 in total drug cost. In 2020, CMS named 73 claims across 4 drugs.
Dr. Markus' Part D claims by kind of drug, 2024
- Generic24 claims89%
- Brand-name and other3 claims11%
Dr. Markus' most prescribed drugs by claims, 2021
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2020 to 2021
- 2020
- 2021
- Claims for drugs CMS names
- 2020: 732021: 6116%
Drugs named by CMS: 4 in 2021, 4 in 2020.
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
Dr. Christopher Joseph Markus scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Markus for performance year 2024, reported as part of a group. Dr. Markus accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Markus' MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Christopher Joseph Markus received $436 in industry payments from 2016 to 2022
CMS Open Payments shows 18 general payments to Dr. Markus from 3 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $249.
General payments to Dr. Markus by program year, 2016 to 2022
Companies that paid Dr. Markus the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Christopher Joseph Markus graduated from Chicago College of Osteopathic Medicine at Midwestern University
Dr. Markus graduated from Chicago College of Osteopathic Medicine at Midwestern University in 1993.
- Medical school
- Board certified in emergency medicine
- Board certified in 1998 - 2026
- Board certified in 1993 - 1999
- Board certified in 1996 - 1999
Source: Dmand AI Professional Profile Data
Dr. Christopher Joseph Markus accepts plans from 1 insurance carrier
Dr. Markus is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for Dr. Christopher Joseph Markus'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Christopher Joseph Markus
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. Christopher Joseph Markus' NPI number?
Dr. Christopher Joseph Markus' NPI number is 1891717427. It was assigned on July 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Christopher Joseph Markus?
Dr. Christopher Joseph Markus is an emergency medicine physician in Roseville, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Christopher Joseph Markus practice?
Dr. Markus practices at One Medical Plaza, Roseville, CA 95661. Dr. Markus also practices at 1 Medical Plz, Roseville, CA 95661. Dr. Markus' primary practice is Sutter Roseville Medical Center in Roseville, California, part of Sutter Health. Dmand AI also links Dr. Markus to 1 medical group.
What is Dr. Christopher Joseph Markus' office phone number?
The practice phone on file for Dr. Markus is (916) 781-1000.
What is Dr. Christopher Joseph Markus' medical license number?
Dr. Markus holds California license 20A7300.
Which hospitals is Dr. Christopher Joseph Markus affiliated with?
Dr. Markus practices at Sutter Roseville Medical Center in Roseville, California.
What medical group is Dr. Christopher Joseph Markus part of?
Dr. Markus is linked to Vituity. Dmand AI links Dr. Markus to 1 more medical group.
Does Dr. Christopher Joseph Markus accept Medicare?
Yes. CMS data shows Dr. Markus billed Medicare for 136 services in 2024, and Dr. Markus accepts Medicare assignment.
What is Dr. Christopher Joseph Markus' MIPS score?
Dr. Markus' MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
How many Medicare patients does Dr. Christopher Joseph Markus see?
CMS counts 135 Medicare patients who saw Dr. Markus in 2024, with an average age of 78.
Show 7 more questionsShow fewer questions
Is Dr. Christopher Joseph Markus board certified?
Yes. Dr. Markus is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Christopher Joseph Markus bill to Medicare?
In 2024, Dr. Markus' most billed Medicare services were hospital inpatient care (99223), hospital inpatient care (99222) and hospital inpatient care (99236).
Where did Dr. Christopher Joseph Markus go to medical school?
Dr. Markus graduated from Chicago College of Osteopathic Medicine at Midwestern University in 1993.
What drugs does Dr. Christopher Joseph Markus prescribe most?
In 2021 Medicare Part D data, Dr. Markus' most prescribed drugs by claims were Lactulose, Ondansetron ODT and Hydrocodone-Acetaminophen.
Has Dr. Christopher Joseph Markus received payments from drug or device companies?
CMS Open Payments shows $436 in general payments to Dr. Markus from 3 companies from 2016 to 2022. The largest total came from Abbvie Inc.
How long has Dr. Christopher Joseph Markus been practicing?
Dr. Markus graduated from medical school in 1993, 33 years ago.
What insurance does Dr. Christopher Joseph Markus accept?
Dr. Markus is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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