Dr. Dimitri Nikitas Kessaris, MD
- Medicare services, 2024
- 5,847
- Medicare patients, 2024
- 569
- Part D claims, 2024
- 2,531
- Industry payments
- $5,462
- Affiliated sites
- 4
- Practice address
- 1 Research Rd, Ridge, NY 11961
- Practice phone
- Call (631) 751-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Port Jefferson Station Medical Oncology
Ridge, New York
Find Dr. Kessaris' professional email, personal email and mobile number
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Dr. Dimitri Nikitas Kessaris is a urologist in Ridge, New York
Dr. Kessaris practices at Port Jefferson Station Medical Oncology in Ridge, New York.
Dr. Kessaris' NPI, 1427022649, was assigned on February 14, 2006. Dr. Kessaris graduated from Stony Brook University Health Sciences Center School of Medicine in 1990. Dr. Kessaris holds New York license 1944221.
- NPI
- 1427022649NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305828112
- NPI enumeration date
- February 14, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 751-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Dimitri Nikitas Kessaris practices at Port Jefferson Station Medical Oncology in Ridge, New York
Dr. Kessaris' primary practice is Port Jefferson Station Medical Oncology, at 1 Research Rd, Ridge, NY 11961 in Suffolk County. The practice phone is (631) 751-3000.
- Port Jefferson Station Medical Oncology1 Research Rd, Ridge, NY 11961 · Suffolk CountyPhone(631) 751-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Dimitri Nikitas Kessaris is affiliated with 5 sites of care and 2 medical groups
Dr. Kessaris' primary practice is Port Jefferson Station Medical Oncology in Ridge, New York. The medical group on file is New York Cancer & Blood Specialists. Dmand AI also links Dr. Kessaris to 2 more physician offices, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Dimitri Nikitas Kessaris' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kessaris practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Port Jefferson Station Medical Oncology | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Dimitri Nikitas Kessaris is one of 919 urologists in New York
Urology is Dr. Kessaris' primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Kessaris is licensed in New York.
Specialties and state licenses
- Urology, New YorkPrimary
Urologists near Dr. Kessaris
Counts of urologists 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. Dimitri Nikitas Kessaris billed Medicare for 5,847 services in 2024
CMS data shows 5,847 Medicare services from Dr. Kessaris across 38 procedure codes in 2024, for 569 Medicare patients. Medicare paid $367,300 for them. Every service was in an office.
Dr. Kessaris' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Surgery
- 2023: 1,7872024: 2,02513%
- Lab and pathology
- 2023: 8852024: 1,67890%
- Office and hospital visits
- 2023: 8752024: 1,01116%
- Imaging
- 2023: 5082024: 67733%
- Other services
- 2023: 02024: 356
- Drugs given in the office
- 2023: 792024: 6024%
- Tests and treatments
- 2023: 02024: 40
Dr. Kessaris compared with the New York median for urologists, 2024
- Dr. Kessaris
- New York median
- Medicare services
- 5,847vs 8496.9 times
- Medicare patients
- 569vs 36058% above
- Part D claims
- 2,409vs 5894.1 times
Medians across 885 urologists in New York with Dmand AI profiles that report each measure.
Dr. Kessaris' 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. Dimitri Nikitas Kessaris treated 569 Medicare patients in 2024, average age 75
CMS counts 569 Medicare patients who saw Dr. Kessaris in 2024. The largest group is 65 to 74, with 249 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 31% are also on Medicaid. Their average risk score is 1.30, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kessaris' median patient age at 65, with 18% women.
Dr. Kessaris' Medicare patients by age, 2024
Dr. Kessaris' Medicare patients by sex, 2024
- Women12021%
- Men44979%
Chronic conditions among Dr. Kessaris' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes45%
- Ischemic heart disease39%
- Cancer24%
- Chronic kidney disease22%
- Anxiety21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kessaris' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women18%
- Men80%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Dimitri Nikitas Kessaris wrote 2,531 Medicare Part D claims in 2024
In 2024, Dr. Kessaris wrote 2,531 Medicare Part D claims for 1,199 patients. 95% of them were for generic drugs. CMS names the drug for 2,409 of them, across 18 drugs with 11 or more claims each, at $414,675 in total drug cost. In 2023, CMS named 3,045 claims across 19 drugs.
Dr. Kessaris' Part D claims by kind of drug, 2024
- Generic2,392 claims95%
- Brand-name and other139 claims5%
Dr. Kessaris' 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. Kessaris' Part D claims, 2024
- Antibiotics32%814 of 2,531 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: 3,0452024: 2,40921%
Drugs named by CMS: 18 in 2024, 19 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. Dimitri Nikitas Kessaris scored 0 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 0 out of 100 for Dr. Kessaris for performance year 2024, reported individually. Dr. Kessaris accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kessaris as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Kessaris' MIPS scores, performance year 2024
- 0of 100Final score
- 0of 100Quality
- 0of 100Promoting Interoperability
- 0of 100Improvement Activities
- 0of 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. Dimitri Nikitas Kessaris received $5,462 in industry payments from 2016 to 2025
CMS Open Payments shows 158 general payments to Dr. Kessaris from 28 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 55% of the total. NxThera, Inc. paid the most, $1,994.
General payments to Dr. Kessaris by program year, 2016 to 2025
General payments to Dr. Kessaris by kind, 2016 to 2025
- Food and beverage$2,97955%
- Gifts$2,24941%
- Education$2334%
Companies that paid Dr. Kessaris 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. Dimitri Nikitas Kessaris graduated from Stony Brook University Health Sciences Center School of Medicine
Dr. Kessaris graduated from Stony Brook University Health Sciences Center School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Dimitri Nikitas Kessaris'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 |
| 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. Dimitri Nikitas Kessaris
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. Dimitri Nikitas Kessaris' NPI number?
Dr. Dimitri Nikitas Kessaris' NPI number is 1427022649. It was assigned on February 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Dimitri Nikitas Kessaris?
Dr. Dimitri Nikitas Kessaris is a urologist in Ridge, New York. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Dimitri Nikitas Kessaris practice?
Dr. Kessaris practices at 1 Research Rd, Ridge, NY 11961. Dr. Kessaris' primary practice is Port Jefferson Station Medical Oncology in Ridge, New York. Dmand AI also links Dr. Kessaris to 2 physician offices, 2 group practices and clinics and 1 medical group.
What is Dr. Dimitri Nikitas Kessaris' office phone number?
The practice phone on file for Dr. Kessaris is (631) 751-3000.
What is Dr. Dimitri Nikitas Kessaris' medical license number?
Dr. Kessaris holds New York license 1944221.
What medical group is Dr. Dimitri Nikitas Kessaris part of?
Dr. Kessaris is linked to New York Cancer & Blood Specialists. Dmand AI links Dr. Kessaris to 1 more medical group.
Does Dr. Dimitri Nikitas Kessaris accept Medicare?
Yes. CMS data shows Dr. Kessaris billed Medicare for 5,847 services in 2024, and Dr. Kessaris accepts Medicare assignment.
Does Dr. Dimitri Nikitas Kessaris offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kessaris as offering telehealth services.
What is Dr. Dimitri Nikitas Kessaris' MIPS score?
Dr. Kessaris' MIPS final score for performance year 2024 is 0 out of 100, reported individually.
How many Medicare patients does Dr. Dimitri Nikitas Kessaris see?
CMS counts 569 Medicare patients who saw Dr. Kessaris in 2024, with an average age of 75.
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What services does Dr. Dimitri Nikitas Kessaris bill to Medicare?
In 2024, Dr. Kessaris' most billed Medicare services were office visit, established patient (99214), lab and pathology test (81002) and surgery: urinary system (51741).
Where did Dr. Dimitri Nikitas Kessaris go to medical school?
Dr. Kessaris graduated from Stony Brook University Health Sciences Center School of Medicine in 1990.
What drugs does Dr. Dimitri Nikitas Kessaris prescribe most?
In 2024 Medicare Part D data, Dr. Kessaris' most prescribed drugs by claims were Tamsulosin HCl, Cefuroxime and Finasteride.
Has Dr. Dimitri Nikitas Kessaris received payments from drug or device companies?
CMS Open Payments shows $5,462 in general payments to Dr. Kessaris from 28 companies from 2016 to 2025. The largest total came from NxThera, Inc.
How long has Dr. Dimitri Nikitas Kessaris been practicing?
Dr. Kessaris graduated from medical school in 1990, 36 years ago.
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