Dr. George Aristotle Markakis, MD
- Medicare services, 2024
- 1,966
- Medicare patients, 2024
- 795
- Part D claims, 2024
- 2,941
- Hospital affiliations
- 2
- Industry payments
- $9,675
- Practice address
- 9500 Euclid Avenue, Cleveland, OH 44195
- Practice phone
- Call (216) 952-9829
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Markakis' professional email, personal email and mobile number
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Dr. George Aristotle Markakis is an ophthalmologist in Cleveland, Ohio
Dr. Markakis practices at Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation.
Dr. Markakis' NPI, 1528207370, was assigned on February 18, 2009. Dr. Markakis graduated from Toledo Medical College in 2007. Dr. Markakis holds Ohio license 35-097311.
- NPI
- 1528207370NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577733625
- NPI enumeration date
- February 18, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (216) 952-9829
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. George Aristotle Markakis practices at Cleveland Clinic Main Campus in Cleveland, Ohio
Dr. Markakis' primary practice is Cleveland Clinic Main Campus, at 9500 Euclid Avenue, Cleveland, OH 44195 in Cuyahoga County. The practice phone is (216) 952-9829.
- Cleveland Clinic Main Campus9500 Euclid Avenue, Cleveland, OH 44195 · Cuyahoga CountyPhone(216) 952-9829
Source: Dmand AI Affiliation Data
Dr. George Aristotle Markakis is affiliated with 5 sites of care and 1 medical group
Dr. Markakis' primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dr. Markakis is also affiliated with Marymount Hospital. The medical group on file is Cleveland Clinic. Dmand AI also links Dr. Markakis to 2 more clinical labs and 1 group practice or clinic, each named with a free account. Dr. Markakis' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. George Aristotle Markakis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Markakis practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Cleveland Clinic Main Campus | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. George Aristotle Markakis is one of 658 ophthalmologists in Ohio
Ophthalmology is Dr. Markakis' primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Markakis is licensed in Ohio.
Specialties and state licenses
- Ophthalmology, OhioPrimary
Ophthalmologists near Dr. Markakis
Counts of ophthalmologists 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 Aristotle Markakis billed Medicare for 1,966 services in 2024
CMS data shows 1,966 Medicare services from Dr. Markakis across 15 procedure codes in 2024, for 795 Medicare patients. Medicare paid $114,318 for them.
Dr. Markakis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9732024: 972No change
- Tests and treatments
- 2023: 8522024: 73614%
- Surgery
- 2023: 1932024: 1864%
- Other services
- 2023: 02024: 43
- Imaging
- 2023: 152024: 2993%
Where Dr. Markakis' Medicare services took place, 2024
- In an office1,73288%
- In a facility23412%
Dr. Markakis compared with the Ohio median for ophthalmologists, 2024
- Dr. Markakis
- Ohio median
- Medicare services
- 1,966vs 1,18566% above
- Medicare patients
- 795vs 47767% above
- Part D claims
- 2,804vs 6414.4 times
Medians across 673 ophthalmologists in Ohio with Dmand AI profiles that report each measure.
Dr. Markakis' 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. Markakis and other ophthalmologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. George Aristotle Markakis treated 795 Medicare patients in 2024, average age 76
CMS counts 795 Medicare patients who saw Dr. Markakis in 2024. The largest group is 65 to 74, with 329 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Markakis' median patient age at 72, with 61% women.
Dr. Markakis' Medicare patients by age, 2024
Dr. Markakis' Medicare patients by sex, 2024
- Women50363%
- Men29237%
Chronic conditions among Dr. Markakis' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis49%
- Diabetes30%
- Chronic kidney disease29%
- Ischemic heart disease26%
- Anxiety19%
- Osteoporosis19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Markakis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. George Aristotle Markakis wrote 2,941 Medicare Part D claims in 2024
In 2024, Dr. Markakis wrote 2,941 Medicare Part D claims for 792 patients. 66% of them were for generic drugs. CMS names the drug for 2,804 of them, across 28 drugs with 11 or more claims each, at $362,169 in total drug cost. In 2023, CMS named 2,483 claims across 26 drugs.
Dr. Markakis' Part D claims by kind of drug, 2024
- Generic1,929 claims66%
- Brand-name1,012 claims34%
Dr. Markakis' 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. Markakis' Part D claims, 2024
- Antibiotics1%35 of 2,941 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: 2,4832024: 2,80413%
Drugs named by CMS: 28 in 2024, 26 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 Aristotle Markakis ranks in the 82nd percentile for cataract surgery in Medicare
Dr. Markakis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 176 procedures of cataract surgery by Dr. Markakis, more than 82% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Markakis ranks in Medicare procedure volume
- Cataract surgery
- 82nd percentile176 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. George Aristotle Markakis received $9,675 in industry payments from 2016 to 2025
CMS Open Payments shows 205 general payments to Dr. Markakis from 24 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 92% of the total. Alcon Laboratories Inc paid the most, $3,692.
General payments to Dr. Markakis by program year, 2016 to 2025
General payments to Dr. Markakis by kind, 2016 to 2025
- Food and beverage$8,90692%
- Speaker and faculty fees$5005%
- Consulting fees$1502%
- Education$751%
- Travel and lodging$450%
Companies that paid Dr. Markakis 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. George Aristotle Markakis graduated from Toledo Medical College
Dr. Markakis graduated from Toledo Medical College in 2007.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. George Aristotle Markakis'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)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. George Aristotle Markakis
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 Aristotle Markakis' NPI number?
Dr. George Aristotle Markakis' NPI number is 1528207370. It was assigned on February 18, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. George Aristotle Markakis?
Dr. George Aristotle Markakis is an ophthalmologist in Cleveland, Ohio. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. George Aristotle Markakis practice?
Dr. Markakis practices at 9500 Euclid Avenue, Cleveland, OH 44195. Dr. Markakis' primary practice is Cleveland Clinic Main Campus in Cleveland, Ohio, part of The Cleveland Clinic Foundation. Dmand AI also links Dr. Markakis to 2 clinical labs and 1 group practice or clinic.
What is Dr. George Aristotle Markakis' office phone number?
The practice phone on file for Dr. Markakis is (216) 952-9829.
What is Dr. George Aristotle Markakis' medical license number?
Dr. Markakis holds Ohio license 35-097311.
Which hospitals is Dr. George Aristotle Markakis affiliated with?
Dr. Markakis practices at Cleveland Clinic Main Campus in Cleveland, Ohio. Dr. Markakis is also affiliated with Marymount Hospital.
What medical group is Dr. George Aristotle Markakis part of?
Dr. Markakis is linked to Cleveland Clinic.
Does Dr. George Aristotle Markakis accept Medicare?
Yes. CMS data shows Dr. Markakis billed Medicare for 1,966 services in 2024, and Dr. Markakis accepts Medicare assignment.
How many Medicare patients does Dr. George Aristotle Markakis see?
CMS counts 795 Medicare patients who saw Dr. Markakis in 2024, with an average age of 76.
What services does Dr. George Aristotle Markakis bill to Medicare?
In 2024, Dr. Markakis' most billed Medicare services were office visit, established patient (99213), eye exam or test (92083) and eye exam or test (92133).
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Where did Dr. George Aristotle Markakis go to medical school?
Dr. Markakis graduated from Toledo Medical College in 2007.
What drugs does Dr. George Aristotle Markakis prescribe most?
In 2024 Medicare Part D data, Dr. Markakis' most prescribed drugs by claims were Latanoprost, Prednisolone Acetate and Dorzolamide-Timolol.
Has Dr. George Aristotle Markakis received payments from drug or device companies?
CMS Open Payments shows $9,675 in general payments to Dr. Markakis from 24 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. George Aristotle Markakis been practicing?
Dr. Markakis graduated from medical school in 2007, 19 years ago.
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