Dr. Ron E. Kastner, MD
- Medicare services, 2024
- 3,936
- Medicare patients, 2024
- 465
- Part D claims, 2024
- 5,763
- MIPS score, 2024
- 82
- Hospital affiliations
- 1
- Practice address
- 4045 Hempstead Turnpike, Bethpage, NY 11714
- Practice phone
- Call (914) 241-1050
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Caremount Medical
Bethpage, New York
Find Dr. Kastner'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. Ron E. Kastner is an internist in Bethpage, New York
Dr. Kastner practices at Caremount Medical in Bethpage, New York.
Dr. Kastner's NPI, 1134200058, was assigned on October 18, 2006. Dr. Kastner graduated from New York University Grossman School of Medicine in 1993. Dr. Kastner holds New York license 198283.
- NPI
- 1134200058NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587747555
- NPI enumeration date
- October 18, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (914) 241-1050
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ron E. Kastner practices at Caremount Medical in Bethpage, New York
Dr. Kastner's primary practice is Caremount Medical, at 4045 Hempstead Turnpike, Bethpage, NY 11714 in Nassau County. The practice phone is (914) 241-1050.
- Caremount Medical4045 Hempstead Turnpike, Bethpage, NY 11714 · Nassau CountyPhone(914) 241-1050
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ron E. Kastner is affiliated with 8 sites of care and 2 medical groups
Dr. Kastner's primary practice is Caremount Medical in Bethpage, New York. Dr. Kastner is also affiliated with North Shore University Hospital. The medical group on file is CareMount Medical. Dmand AI also links Dr. Kastner to 4 more home health agencies, 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. Ron E. Kastner's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kastner practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Caremount Medical | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ron E. Kastner is one of 9,643 internists in New York
Internal medicine is Dr. Kastner's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Kastner is licensed in New York.
Specialties and state licenses
- Internal medicine, New YorkPrimary
Internists near Dr. Kastner
Counts of internists 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. Ron E. Kastner billed Medicare for 3,936 services in 2024
CMS data shows 3,936 Medicare services from Dr. Kastner across 36 procedure codes in 2024, for 465 Medicare patients. Medicare paid $178,853 for them. Every service was in an office.
Dr. Kastner's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Lab and pathology
- 2023: 2,1352024: 1,90711%
- Office and hospital visits
- 2023: 7212024: 7616%
- Other services
- 2023: 4902024: 5114%
- Surgery
- 2023: 4582024: 4492%
- Tests and treatments
- 2023: 3492024: 30812%
Dr. Kastner compared with the New York median for internists, 2024
- Dr. Kastner
- New York median
- Medicare services
- 3,936vs 4269.2 times
- Medicare patients
- 465vs 1582.9 times
- Part D claims
- 5,195vs 6228.4 times
Medians across 9,428 internists in New York with Dmand AI profiles that report each measure.
Dr. Kastner'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Kastner and other internists in New York.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ron E. Kastner treated 465 Medicare patients in 2024, average age 76
CMS counts 465 Medicare patients who saw Dr. Kastner in 2024. The largest group is 65 to 74, with 212 patients. 75% of them have high cholesterol, and 66% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Kastner's median patient age at 60, with 36% women.
Dr. Kastner's Medicare patients by age, 2024
Dr. Kastner's Medicare patients by sex, 2024
- Women21346%
- Men25254%
Chronic conditions among Dr. Kastner's Medicare patients, 2024
- High cholesterol75%
- High blood pressure66%
- Arthritis42%
- Ischemic heart disease26%
- Anxiety24%
- Diabetes20%
- Atrial fibrillation17%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Kastner's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 60
Patient panel by sex, all payers
- Women36%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ron E. Kastner wrote 5,763 Medicare Part D claims in 2024
In 2024, Dr. Kastner wrote 5,763 Medicare Part D claims for 606 patients. 91% of them were for generic drugs. CMS names the drug for 5,195 of them, across 86 drugs with 11 or more claims each, at $310,752 in total drug cost. In 2023, CMS named 4,878 claims across 86 drugs.
Dr. Kastner's Part D claims by kind of drug, 2024
- Generic5,252 claims91%
- Brand-name498 claims9%
- Other13 claims0%
Dr. Kastner'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. Kastner's Part D claims, 2024
- Opioids1%45 of 5,763 claims
- Antibiotics3%155 of 5,763 claims
- Antipsychotics, patients 65 and over0%19 of 5,763 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: 4,8782024: 5,1956%
Drugs named by CMS: 86 in 2024, 86 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. Ron E. Kastner scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Kastner for performance year 2024, reported as part of a group. Dr. Kastner accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Kastner as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Kastner's MIPS scores, performance year 2024
- 82of 100Final score
- 72.1of 100Quality
- 91of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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. Ron E. Kastner received $2,535 in industry payments from 2016 to 2025
CMS Open Payments shows 131 general payments to Dr. Kastner from 33 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Pfizer Inc. paid the most, $306.
General payments to Dr. Kastner by program year, 2016 to 2025
Companies that paid Dr. Kastner 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. Ron E. Kastner graduated from New York University Grossman School of Medicine
Dr. Kastner graduated from New York University Grossman School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ron E. Kastner'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. Ron E. Kastner
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. Ron E. Kastner's NPI number?
Dr. Ron E. Kastner's NPI number is 1134200058. It was assigned on October 18, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ron E. Kastner?
Dr. Ron E. Kastner is an internist in Bethpage, New York. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ron E. Kastner practice?
Dr. Kastner practices at 4045 Hempstead Turnpike, Bethpage, NY 11714. Dr. Kastner's primary practice is Caremount Medical in Bethpage, New York. Dmand AI also links Dr. Kastner to 4 home health agencies, 2 group practices and clinics and 1 medical group.
What is Dr. Ron E. Kastner's office phone number?
The practice phone on file for Dr. Kastner is (914) 241-1050.
What is Dr. Ron E. Kastner's medical license number?
Dr. Kastner holds New York license 198283.
Which hospitals is Dr. Ron E. Kastner affiliated with?
Dr. Kastner is affiliated with North Shore University Hospital.
What medical group is Dr. Ron E. Kastner part of?
Dr. Kastner is linked to CareMount Medical. Dmand AI links Dr. Kastner to 1 more medical group.
Does Dr. Ron E. Kastner accept Medicare?
Yes. CMS data shows Dr. Kastner billed Medicare for 3,936 services in 2024, and Dr. Kastner accepts Medicare assignment.
Does Dr. Ron E. Kastner offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Kastner as offering telehealth services.
What is Dr. Ron E. Kastner's MIPS score?
Dr. Kastner's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Ron E. Kastner see?
CMS counts 465 Medicare patients who saw Dr. Kastner in 2024, with an average age of 76.
What services does Dr. Ron E. Kastner bill to Medicare?
In 2024, Dr. Kastner's most billed Medicare services were office visit, established patient (99214), surgery: heart and blood vessels (36415) and lab and pathology test (80053).
Where did Dr. Ron E. Kastner go to medical school?
Dr. Kastner graduated from New York University Grossman School of Medicine in 1993.
What drugs does Dr. Ron E. Kastner prescribe most?
In 2024 Medicare Part D data, Dr. Kastner's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.
Has Dr. Ron E. Kastner received payments from drug or device companies?
CMS Open Payments shows $2,535 in general payments to Dr. Kastner from 33 companies from 2016 to 2025. The largest total came from Pfizer Inc.
How long has Dr. Ron E. Kastner been practicing?
Dr. Kastner graduated from medical school in 1993, 33 years ago.
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