Dr. George John Mallios, DO
- Medicare services, 2024
- 1,046
- Medicare patients, 2024
- 414
- Part D claims, 2024
- 94
- MIPS score, 2024
- 85
- Hospital affiliations
- 2
- Practice address
- 2650 Ridge Ave, Evanston, IL 60201
- Practice phone
- Call (847) 570-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. George John Mallios is a hospitalist in Evanston, Illinois
Dr. Mallios practices at Evanston Hospital in Evanston, Illinois, part of Endeavor Health.
Dr. Mallios' NPI, 1750568150, was assigned on January 28, 2008. Dr. Mallios holds Illinois license 036125960.
- NPI
- 1750568150NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8022142736
- NPI enumeration date
- January 28, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (847) 570-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. George John Mallios practices at Evanston Hospital in Evanston, Illinois
Dr. Mallios' primary practice is Evanston Hospital, at 2650 Ridge Ave, Evanston, IL 60201 in Cook County. The practice phone is (847) 570-2000.
- Evanston Hospital2650 Ridge Ave, Evanston, IL 60201 · Cook CountyPhone(847) 570-2000
Source: Dmand AI Affiliation Data
Dr. George John Mallios is affiliated with 3 sites of care and 1 medical group
Dr. Mallios' primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dr. Mallios is also affiliated with Swedish Hospital. The medical group on file is Endeavor Health Medical Group. Dmand AI also links Dr. Mallios to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. George John Mallios' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mallios practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Evanston Hospital | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. George John Mallios is one of 1,321 hospitalists in Illinois
Hospitalist is Dr. Mallios' primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Mallios is licensed in Illinois.
Specialties and state licenses
- Hospitalist, IllinoisPrimary
Hospitalists near Dr. Mallios
Counts of hospitalists 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. George John Mallios billed Medicare for 1,046 services in 2024
CMS data shows 1,046 Medicare services from Dr. Mallios across 10 procedure codes in 2024, for 414 Medicare patients. Medicare paid $73,961 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mallios' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1602024: 93619%
- Other services
- 2023: 452024: 110144%
Dr. Mallios compared with the Illinois median for hospitalists, 2024
- Dr. Mallios
- Illinois median
- Medicare services
- 1,046vs 54393% above
- Medicare patients
- 414vs 24271% above
- Part D claims
- 15vs 5372% below
Medians across 1,248 hospitalists in Illinois with Dmand AI profiles that report each measure.
Dr. Mallios' 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. George John Mallios treated 414 Medicare patients in 2024, average age 81
CMS counts 414 Medicare patients who saw Dr. Mallios in 2024. The largest group is 75 to 84, with 159 patients. 75% of them have arthritis, and 75% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.70, 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. Mallios' median patient age at 75, with 63% women.
Dr. Mallios' Medicare patients by age, 2024
Dr. Mallios' Medicare patients by sex, 2024
- Women26764%
- Men14736%
Chronic conditions among Dr. Mallios' Medicare patients, 2024
- Arthritis75%
- High blood pressure75%
- High cholesterol75%
- Osteoporosis53%
- Mood disorders43%
- Anxiety41%
- Depression39%
- Chronic kidney disease36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mallios' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women63%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. George John Mallios wrote 94 Medicare Part D claims in 2024
In 2024, Dr. Mallios wrote 94 Medicare Part D claims for 31 patients. 97% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $53 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Mallios' Part D claims by kind of drug, 2024
- Generic91 claims97%
- Brand-name and other3 claims3%
Dr. Mallios' 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. Mallios' Part D claims, 2024
- Opioids14%13 of 94 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: 122024: 1525%
Drugs named by CMS: 1 in 2024, 1 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
Dr. George John Mallios scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Mallios for performance year 2024, reported as part of a group. Dr. Mallios accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Mallios' MIPS scores, performance year 2024
- 85of 100Final score
- 75.9of 100Quality
- 99of 100Promoting Interoperability
- 40of 100Improvement Activities
- 75of 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. George John Mallios received $1,680 in industry payments from 2016 to 2025
CMS Open Payments shows 19 general payments to Dr. Mallios from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $525.
General payments to Dr. Mallios by program year, 2016 to 2025
Companies that paid Dr. Mallios the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. George John Mallios'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) |
| 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) |
| 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. George John Mallios
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. George John Mallios' NPI number?
Dr. George John Mallios' NPI number is 1750568150. It was assigned on January 28, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. George John Mallios?
Dr. George John Mallios is a hospitalist in Evanston, Illinois. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. George John Mallios practice?
Dr. Mallios practices at 2650 Ridge Ave, Evanston, IL 60201. Dr. Mallios' primary practice is Evanston Hospital in Evanston, Illinois, part of Endeavor Health. Dmand AI also links Dr. Mallios to 1 group practice or clinic.
What is Dr. George John Mallios' office phone number?
The practice phone on file for Dr. Mallios is (847) 570-2000.
What is Dr. George John Mallios' medical license number?
Dr. Mallios holds Illinois license 036125960.
Which hospitals is Dr. George John Mallios affiliated with?
Dr. Mallios practices at Evanston Hospital in Evanston, Illinois. Dr. Mallios is also affiliated with Swedish Hospital.
What medical group is Dr. George John Mallios part of?
Dr. Mallios is linked to Endeavor Health Medical Group.
Does Dr. George John Mallios accept Medicare?
Yes. CMS data shows Dr. Mallios billed Medicare for 1,046 services in 2024, and Dr. Mallios accepts Medicare assignment.
What is Dr. George John Mallios' MIPS score?
Dr. Mallios' MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
How many Medicare patients does Dr. George John Mallios see?
CMS counts 414 Medicare patients who saw Dr. Mallios in 2024, with an average age of 81.
Show 4 more questionsShow fewer questions
What services does Dr. George John Mallios bill to Medicare?
In 2024, Dr. Mallios' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and medicare service (G0316).
What drugs does Dr. George John Mallios prescribe most?
In 2024 Medicare Part D data, Dr. Mallios' most prescribed drugs by claims were Warfarin Sodium.
Has Dr. George John Mallios received payments from drug or device companies?
CMS Open Payments shows $1,680 in general payments to Dr. Mallios from 10 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. George John Mallios been practicing?
Dr. Mallios graduated from medical school in 2005, 21 years ago.
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