Dr. Mitchell Kleinberg, MD
- Part D claims, 2018
- 14
- Industry payments
- $695
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Practice address
- 1500 State Rte 112, Port Jefferson Station, NY 11776
- Practice phone
- Call (631) 828-3400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Long Island Digestive Endoscopy Center, LLC
Port Jefferson Station, New York
Find Dr. Kleinberg'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. Mitchell Kleinberg is a pediatric adolescent medicine physician in Port Jefferson Station, New York
Dr. Kleinberg practices at Long Island Digestive Endoscopy Center, LLC in Port Jefferson Station, New York.
Dr. Kleinberg's NPI, 1447367537, was assigned on August 24, 2006. Dr. Kleinberg graduated from Icahn School Of Medicine At Mount Sinai in 1980. Dr. Kleinberg holds New York license 154133.
- NPI
- 1447367537NPI Registry (opens in a new tab)
- NPI enumeration date
- August 24, 2006
- NPI status
- Active
- Practice phone
- (631) 828-3400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 72
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Mitchell Kleinberg practices at Long Island Digestive Endoscopy Center, LLC in Port Jefferson Station, New York
Dr. Kleinberg's primary practice is Long Island Digestive Endoscopy Center, LLC, at 1500 State Rte 112, Port Jefferson Station, NY 11776 in Suffolk County. The practice phone is (631) 828-3400.
- Long Island Digestive Endoscopy Center, LLC1500 State Rte 112, Port Jefferson Station, NY 11776 · Suffolk CountyPhone(631) 828-3400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mitchell Kleinberg is affiliated with 3 sites of care and 2 medical groups
Dr. Kleinberg's primary practice is Long Island Digestive Endoscopy Center, LLC in Port Jefferson Station, New York. The medical group on file is CareMount Medical. Dmand AI also links Dr. Kleinberg 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. Mitchell Kleinberg's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Kleinberg practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Long Island Digestive Endoscopy Center, LLC | 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. Mitchell Kleinberg is one of 283 pediatric adolescent medicine physicians in New York
Adolescent medicine is Dr. Kleinberg's primary specialty in the NPI Registry, under taxonomy code 2080A0000X. Dr. Kleinberg is licensed in New York.
Specialties and state licenses
- Pediatric adolescent medicine, New YorkPrimary
Pediatric adolescent medicine physicians near Dr. Kleinberg
Counts of pediatric adolescent medicine physicians 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. Mitchell Kleinberg's patients have a median age of 13
Across all payers, Dmand AI patient panel data puts Dr. Kleinberg's median patient age at 13, with 44% women.
Dr. Kleinberg's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 13
Patient panel by sex, all payers
- Women44%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Mitchell Kleinberg wrote 14 Medicare Part D claims in 2018
In 2018, Dr. Kleinberg wrote 14 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $297 in total drug cost.
Dr. Kleinberg's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
For MedTech and pharma teams
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Dr. Mitchell Kleinberg received $695 in industry payments from 2016 to 2025
CMS Open Payments shows 19 general payments to Dr. Kleinberg from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $175.
General payments to Dr. Kleinberg by program year, 2016 to 2025
Companies that paid Dr. Kleinberg 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. Mitchell Kleinberg graduated from Icahn School Of Medicine At Mount Sinai
Dr. Kleinberg graduated from Icahn School Of Medicine At Mount Sinai in 1980.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mitchell Kleinberg'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 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) |
| 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. Mitchell Kleinberg
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. Mitchell Kleinberg's NPI number?
Dr. Mitchell Kleinberg's NPI number is 1447367537. It was assigned on August 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mitchell Kleinberg?
Dr. Mitchell Kleinberg is a pediatric adolescent medicine physician in Port Jefferson Station, New York. The primary specialty in the NPI Registry is Pediatric Adolescent Medicine Physician (taxonomy code 2080A0000X).
Where does Dr. Mitchell Kleinberg practice?
Dr. Kleinberg practices at 1500 State Rte 112, Port Jefferson Station, NY 11776. Dr. Kleinberg's primary practice is Long Island Digestive Endoscopy Center, LLC in Port Jefferson Station, New York. Dmand AI also links Dr. Kleinberg to 2 group practices and clinics and 1 medical group.
What is Dr. Mitchell Kleinberg's office phone number?
The practice phone on file for Dr. Kleinberg is (631) 828-3400.
What is Dr. Mitchell Kleinberg's medical license number?
Dr. Kleinberg holds New York license 154133.
What medical group is Dr. Mitchell Kleinberg part of?
Dr. Kleinberg is linked to CareMount Medical. Dmand AI links Dr. Kleinberg to 1 more medical group.
Where did Dr. Mitchell Kleinberg go to medical school?
Dr. Kleinberg graduated from Icahn School Of Medicine At Mount Sinai in 1980.
What drugs does Dr. Mitchell Kleinberg prescribe most?
In 2018 Medicare Part D data, Dr. Kleinberg's most prescribed drugs by claims were Polyethylene Glycol 3350.
Has Dr. Mitchell Kleinberg received payments from drug or device companies?
CMS Open Payments shows $695 in general payments to Dr. Kleinberg from 10 companies from 2016 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Mitchell Kleinberg been practicing?
Dr. Kleinberg graduated from medical school in 1980, 46 years ago.
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