Dr. John Kelemen, MD
- Medicare services, 2024
- 6,518
- Medicare patients, 2024
- 294
- Part D claims, 2024
- 510
- Industry payments
- $205,181
- Affiliated sites
- 2
- Practice address
- 6080 Jericho Turnpike, Commack, NY 11725
- Practice phone
- Call (631) 886-4985
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
True North Medical at North Suffolk
Commack, New York
Find Dr. Kelemen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. John Kelemen is a neurologist in Commack, New York
Dr. Kelemen practices at True North Medical at North Suffolk in Commack, New York.
Dr. Kelemen's NPI, 1811973449, was assigned on December 15, 2005. Dr. Kelemen graduated from Georgetown University School Of Medicine in 1974. Dr. Kelemen holds New York license 129480.
- NPI
- 1811973449NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3678583440
- NPI enumeration date
- December 15, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (631) 886-4985
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Kelemen practices at True North Medical at North Suffolk in Commack, New York
Dr. Kelemen's primary practice is True North Medical at North Suffolk, at 6080 Jericho Turnpike, Commack, NY 11725 in Suffolk County. The practice phone is (631) 886-4985.
- True North Medical at North Suffolk6080 Jericho Turnpike, Commack, NY 11725 · Suffolk CountyPhone(631) 886-4985
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Kelemen is affiliated with 3 sites of care and 2 medical groups
Dr. Kelemen's primary practice is True North Medical at North Suffolk in Commack, New York. The medical group on file is True North Neurology. Dmand AI also links Dr. Kelemen to 2 more 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. John Kelemen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kelemen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| True North Medical at North Suffolk | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Kelemen is one of 1,489 neurologists in New York
Neurology is Dr. Kelemen's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Kelemen is licensed in New York.
Specialties and state licenses
- Neurology, New YorkPrimary
Neurologists near Dr. Kelemen
Counts of neurologists 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. John Kelemen billed Medicare for 6,518 services in 2024
CMS data shows 6,518 Medicare services from Dr. Kelemen across 13 procedure codes in 2024, for 294 Medicare patients. Medicare paid $139,889 for them. Every service was in an office.
Dr. Kelemen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 8,1832024: 5,43934%
- Office and hospital visits
- 2023: 6232024: 6132%
- Tests and treatments
- 2023: 5912024: 40931%
- Surgery
- 2023: 602024: 575%
Dr. Kelemen compared with the New York median for neurologists, 2024
- Dr. Kelemen
- New York median
- Medicare services
- 6,518vs 37617.3 times
- Medicare patients
- 294vs 19055% above
- Part D claims
- 431vs 37515% above
Medians across 1,462 neurologists in New York with Dmand AI profiles that report each measure.
Dr. Kelemen's 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.
Need commercial claims for Dr. Kelemen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kelemen and other neurologists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Kelemen treated 294 Medicare patients in 2024, average age 71
CMS counts 294 Medicare patients who saw Dr. Kelemen in 2024. The largest group is 65 to 74, with 128 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 1.48, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kelemen's median patient age at 64, with 51% women.
Dr. Kelemen's Medicare patients by age, 2024
Dr. Kelemen's Medicare patients by sex, 2024
- Women13947%
- Men15553%
Chronic conditions among Dr. Kelemen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis59%
- Ischemic heart disease39%
- Diabetes35%
- Anxiety30%
- Mood disorders27%
- Depression25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kelemen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 64
Patient panel by sex, all payers
- Women51%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Kelemen wrote 510 Medicare Part D claims in 2024
In 2024, Dr. Kelemen wrote 510 Medicare Part D claims for 143 patients. 77% of them were for generic drugs. CMS names the drug for 431 of them, across 13 drugs with 11 or more claims each, at $858,851 in total drug cost. In 2023, CMS named 364 claims across 13 drugs.
Dr. Kelemen's Part D claims by kind of drug, 2024
- Generic391 claims77%
- Brand-name119 claims23%
Dr. Kelemen's 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3642024: 43118%
Drugs named by CMS: 13 in 2024, 13 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. John Kelemen 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. Kelemen for performance year 2024, reported individually. Dr. Kelemen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kelemen as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Kelemen's MIPS scores, performance year 2024
- 0of 100Final score
- 0of 100Quality
- 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. John Kelemen received $205,181 in industry payments from 2016 to 2025
CMS Open Payments shows 865 general payments to Dr. Kelemen from 61 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 77% of the total. Allergan Inc. paid the most, $116,840. It also lists 1 research payment totaling $195 in 2016.
General payments to Dr. Kelemen by program year, 2016 to 2025
General payments to Dr. Kelemen by kind, 2016 to 2025
- Speaker and faculty fees$157,50877%
- Consulting fees$19,80010%
- Food and beverage$19,2999%
- Travel and lodging$8,5434%
- Education$320%
Companies that paid Dr. Kelemen 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. John Kelemen graduated from Georgetown University School Of Medicine
Dr. Kelemen graduated from Georgetown University School Of Medicine in 1974.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Kelemen'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. John Kelemen
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. John Kelemen's NPI number?
Dr. John Kelemen's NPI number is 1811973449. It was assigned on December 15, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John Kelemen?
Dr. John Kelemen is a neurologist in Commack, New York. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. John Kelemen practice?
Dr. Kelemen practices at 6080 Jericho Turnpike, Commack, NY 11725. Dr. Kelemen's primary practice is True North Medical at North Suffolk in Commack, New York. Dmand AI also links Dr. Kelemen to 2 group practices and clinics and 1 medical group.
What is Dr. John Kelemen's office phone number?
The practice phone on file for Dr. Kelemen is (631) 886-4985.
What is Dr. John Kelemen's medical license number?
Dr. Kelemen holds New York license 129480.
What medical group is Dr. John Kelemen part of?
Dr. Kelemen is linked to True North Neurology. Dmand AI links Dr. Kelemen to 1 more medical group.
Does Dr. John Kelemen accept Medicare?
Yes. CMS data shows Dr. Kelemen billed Medicare for 6,518 services in 2024, and Dr. Kelemen accepts Medicare assignment.
Does Dr. John Kelemen offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kelemen as offering telehealth services.
What is Dr. John Kelemen's MIPS score?
Dr. Kelemen's MIPS final score for performance year 2024 is 0 out of 100, reported individually.
How many Medicare patients does Dr. John Kelemen see?
CMS counts 294 Medicare patients who saw Dr. Kelemen in 2024, with an average age of 71.
Show 5 more questionsShow fewer questions
What services does Dr. John Kelemen bill to Medicare?
In 2024, Dr. Kelemen's most billed Medicare services were injected or infused drug (J2919), office visit, established patient (99215) and infusion or chemotherapy administration (96365).
Where did Dr. John Kelemen go to medical school?
Dr. Kelemen graduated from Georgetown University School Of Medicine in 1974.
What drugs does Dr. John Kelemen prescribe most?
In 2024 Medicare Part D data, Dr. Kelemen's most prescribed drugs by claims were Gabapentin, Botox and Prednisone.
Has Dr. John Kelemen received payments from drug or device companies?
CMS Open Payments shows $205,181 in general payments to Dr. Kelemen from 61 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. John Kelemen been practicing?
Dr. Kelemen graduated from medical school in 1974, 52 years ago.
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