Dr. John M. Leventhal, MD
- Industry payments
- $1,686
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2005
- Practice address
- 789 Howard Ave, New Haven, CT 06519-1304
- Practice phone
- Call (203) 688-2471
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Yale Health Center - Primary Care - New Haven (Howard Ave)
Multi-specialty group site · New Haven, Connecticut
Find Dr. Leventhal'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 M. Leventhal is a pediatrician in New Haven, Connecticut
Dr. Leventhal practices at Yale Health Center - Primary Care - New Haven (Howard Ave) in New Haven, Connecticut.
Dr. Leventhal's NPI, 1801879622, was assigned on November 25, 2005. Dr. Leventhal holds Connecticut license 020734.
- NPI
- 1801879622NPI Registry (opens in a new tab)
- NPI enumeration date
- November 25, 2005
- NPI status
- Active
- Practice phone
- (203) 688-2471
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John M. Leventhal practices at 2 locations in New Haven, Connecticut
Dr. Leventhal's primary practice is Yale Health Center - Primary Care - New Haven (Howard Ave), at 789 Howard Ave, New Haven, CT 06519-1304. The practice phone is (203) 688-2471. The NPI Registry lists Dr. Leventhal's practice address as 50 Division St, New Haven, CT 06511.
- Yale Health Center - Primary Care - New Haven (Howard Ave)Primary789 Howard Ave, New Haven, CT 06519-1304Phone(203) 688-2471
- NPI Registry address50 Division St, New Haven, CT 06511 · South Central Ct CountyPhone(203) 688-2468
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. John M. Leventhal is affiliated with 1 site of care and 1 medical group
Dr. Leventhal's primary practice is Yale Health Center - Primary Care - New Haven (Howard Ave) in New Haven, Connecticut. The medical group on file is Yale Health.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. John M. Leventhal's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Leventhal practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Yale Health Center - Primary Care - New Haven (Howard Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John M. Leventhal is one of 788 pediatricians in Connecticut
Pediatrics is Dr. Leventhal's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Leventhal is licensed in Connecticut.
Specialties and state licenses
- Pediatrics, ConnecticutPrimary
Pediatricians near Dr. Leventhal
Counts of pediatricians 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 M. Leventhal's patients have a median age of 86
Across all payers, Dmand AI patient panel data puts Dr. Leventhal's median patient age at 86, with 67% women.
Dr. Leventhal's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 86
Patient panel by sex, all payers
- Women67%
- Men33%
Source: Dmand AI Patient Panel Data
Dr. John M. Leventhal received $1,686 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Leventhal from 1 drug or device company in 2020. Consulting fees make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $1,686.
Companies that paid Dr. Leventhal the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. John M. Leventhal'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 M. Leventhal
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 M. Leventhal's NPI number?
Dr. John M. Leventhal's NPI number is 1801879622. It was assigned on November 25, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John M. Leventhal?
Dr. John M. Leventhal is a pediatrician in New Haven, Connecticut. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. John M. Leventhal practice?
Dr. Leventhal practices at 789 Howard Ave, New Haven, CT 06519-1304. Dr. Leventhal also practices at 50 Division St, New Haven, CT 06511. Dr. Leventhal's primary practice is Yale Health Center - Primary Care - New Haven (Howard Ave) in New Haven, Connecticut.
What is Dr. John M. Leventhal's office phone number?
The practice phone on file for Dr. Leventhal is (203) 688-2471.
What is Dr. John M. Leventhal's medical license number?
Dr. Leventhal holds Connecticut license 020734.
What medical group is Dr. John M. Leventhal part of?
Dr. Leventhal is linked to Yale Health.
Has Dr. John M. Leventhal received payments from drug or device companies?
CMS Open Payments shows $1,686 in general payments to Dr. Leventhal from 1 company from 2020 to 2020. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. John M. Leventhal been practicing?
Dr. Leventhal's NPI was assigned in 2005.
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