Dr. Joel J. Kassimir, MD
- Part D claims, 2024
- 1,901
- Industry payments
- $12,374
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 1468 Madison Ave, New York, NY 10029
- Practice phone
- Call (212) 241-6500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
The Mount Sinai Hospital
New York, New York
Find Dr. Kassimir'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. Joel J. Kassimir is a dermatologist in New York, New York
Dr. Kassimir practices at The Mount Sinai Hospital in New York, New York.
Dr. Kassimir's NPI, 1346338480, was assigned on October 11, 2006. Dr. Kassimir graduated from University of Massachusetts Medical School in 1982. Dr. Kassimir holds New York license 1528481.
- NPI
- 1346338480NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9234177593
- NPI enumeration date
- October 11, 2006
- NPI status
- Active
- Practice phone
- (212) 241-6500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 70
- Medical school graduation
- 1982
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Joel J. Kassimir practices at The Mount Sinai Hospital in New York, New York
Dr. Kassimir's primary practice is The Mount Sinai Hospital, at 1468 Madison Ave, New York, NY 10029 in New York County. The practice phone is (212) 241-6500.
- The Mount Sinai Hospital1468 Madison Ave, New York, NY 10029 · New York CountyPhone(212) 241-6500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Joel J. Kassimir is affiliated with 1 site of care
Dr. Kassimir's primary practice is The Mount Sinai Hospital in New York, New York.
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Joel J. Kassimir's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kassimir practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Mount Sinai Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Joel J. Kassimir is one of 1,038 dermatologists in New York
Dermatology is Dr. Kassimir's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Kassimir is licensed in New York.
Specialties and state licenses
- Dermatology, New YorkPrimary
Dermatologists near Dr. Kassimir
Counts of dermatologists 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. Joel J. Kassimir's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts Dr. Kassimir's median patient age at 40, with 58% women.
Dr. Kassimir's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women58%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Joel J. Kassimir wrote 1,901 Medicare Part D claims in 2024
In 2024, Dr. Kassimir wrote 1,901 Medicare Part D claims for 371 patients. 97% of them were for generic drugs. CMS names the drug for 1,793 of them, across 17 drugs with 11 or more claims each, at $40,566 in total drug cost. In 2023, CMS named 1,617 claims across 16 drugs.
Dr. Kassimir's Part D claims by kind of drug, 2024
- Generic1,843 claims97%
- Brand-name58 claims3%
Dr. Kassimir'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.
Drug classes CMS tracks in Dr. Kassimir's Part D claims, 2024
- Antibiotics2%39 of 1,901 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: 1,6172024: 1,79311%
Drugs named by CMS: 17 in 2024, 16 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
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Dr. Joel J. Kassimir received $12,374 in industry payments from 2016 to 2025
CMS Open Payments shows 376 general payments to Dr. Kassimir from 20 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 53% of the total. Allergan Inc. paid the most, $9,452.
General payments to Dr. Kassimir by program year, 2016 to 2025
General payments to Dr. Kassimir by kind, 2016 to 2025
- Food and beverage$6,51153%
- Consulting fees$5,32543%
- Travel and lodging$5384%
Companies that paid Dr. Kassimir 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. Joel J. Kassimir graduated from University of Massachusetts Medical School
Dr. Kassimir graduated from University of Massachusetts Medical School in 1982.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joel J. Kassimir'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 Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Joel J. Kassimir
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. Joel J. Kassimir's NPI number?
Dr. Joel J. Kassimir's NPI number is 1346338480. It was assigned on October 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joel J. Kassimir?
Dr. Joel J. Kassimir is a dermatologist in New York, New York. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Joel J. Kassimir practice?
Dr. Kassimir practices at 1468 Madison Ave, New York, NY 10029. Dr. Kassimir's primary practice is The Mount Sinai Hospital in New York, New York.
What is Dr. Joel J. Kassimir's office phone number?
The practice phone on file for Dr. Kassimir is (212) 241-6500.
What is Dr. Joel J. Kassimir's medical license number?
Dr. Kassimir holds New York license 1528481.
Where did Dr. Joel J. Kassimir go to medical school?
Dr. Kassimir graduated from University of Massachusetts Medical School in 1982.
What drugs does Dr. Joel J. Kassimir prescribe most?
In 2024 Medicare Part D data, Dr. Kassimir's most prescribed drugs by claims were Finasteride, Spironolactone and Minoxidil.
Has Dr. Joel J. Kassimir received payments from drug or device companies?
CMS Open Payments shows $12,374 in general payments to Dr. Kassimir from 20 companies from 2016 to 2025. The largest total came from Allergan Inc.
How long has Dr. Joel J. Kassimir been practicing?
Dr. Kassimir graduated from medical school in 1982, 44 years ago.
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