Leonard A. Oken, PA
- Part D claims, 2024
- 68
- Hospital affiliations
- 1
- Industry payments
- $122
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 760 Broadway, Brooklyn, NY 11206
- Practice phone
- Call (718) 963-8100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Leonard Oken'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.
Leonard A. Oken is a physician assistant in Brooklyn, New York
Leonard Oken practices at NYC Health + Hospitals/Woodhull in Brooklyn, New York, part of NYC.
Leonard Oken's NPI, 1821162553, was assigned on November 17, 2006. Leonard Oken holds New York license 002620.
- NPI
- 1821162553NPI Registry (opens in a new tab)
- NPI enumeration date
- November 17, 2006
- NPI status
- Active
- Practice phone
- (718) 963-8100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Leonard A. Oken practices at NYC Health + Hospitals/Woodhull in Brooklyn, New York
Leonard Oken's primary practice is NYC Health + Hospitals/Woodhull, at 760 Broadway, Brooklyn, NY 11206 in Kings County. The practice phone is (718) 963-8100.
- NYC Health + Hospitals/Woodhull760 Broadway, Brooklyn, NY 11206 · Kings CountyPhone(718) 963-8100
Source: Dmand AI Affiliation Data
Leonard A. Oken is affiliated with 1 site of care
Leonard Oken's primary practice is NYC Health + Hospitals/Woodhull in Brooklyn, New York, part of NYC. Leonard Oken's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Leonard A. Oken's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Leonard Oken practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| NYC Health + Hospitals/Woodhull | Available with a free account |
Source: Dmand AI Technology Install Data
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Leonard A. Oken is one of 11,456 physician assistants in New York
Physician assistant is Leonard Oken's primary specialty in the NPI Registry, under taxonomy code 363A00000X. Leonard Oken is licensed in New York.
Specialties and state licenses
- Physician assistant, New YorkPrimary
Physician assistants near Leonard Oken
Counts of physician assistants 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
Leonard A. Oken's patients have a median age of 30
Across all payers, Dmand AI patient panel data puts Leonard Oken's median patient age at 30, with 33% women.
Leonard Oken's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 30
Patient panel by sex, all payers
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Leonard A. Oken wrote 68 Medicare Part D claims in 2024
In 2024, Leonard Oken wrote 68 Medicare Part D claims for 21 patients. 87% of them were for generic drugs.
Leonard Oken's Part D claims by kind of drug, 2024
- Generic59 claims87%
- Brand-name and other9 claims13%
Drug classes CMS tracks in Leonard Oken's Part D claims, 2024
- Opioids21%14 of 68 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Leonard A. Oken received $122 in industry payments in 2025
CMS Open Payments shows 1 general payment to Leonard Oken from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Shionogi Inc paid the most, $122.
Companies that paid Leonard Oken the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Leonard A. Oken'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| 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 Leonard A. Oken
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Leonard A. Oken's NPI number?
Leonard A. Oken's NPI number is 1821162553. It was assigned on November 17, 2006, and it is active in the NPI Registry.
What does Leonard A. Oken specialize in?
Leonard A. Oken is a physician assistant in Brooklyn, New York. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does Leonard A. Oken practice?
Leonard Oken practices at 760 Broadway, Brooklyn, NY 11206. Leonard Oken's primary practice is NYC Health + Hospitals/Woodhull in Brooklyn, New York, part of NYC.
What is Leonard A. Oken's office phone number?
The practice phone on file for Leonard Oken is (718) 963-8100.
What is Leonard A. Oken's medical license number?
Leonard Oken holds New York license 002620.
Which hospitals is Leonard A. Oken affiliated with?
Leonard Oken practices at NYC Health + Hospitals/Woodhull in Brooklyn, New York.
Has Leonard A. Oken received payments from drug or device companies?
CMS Open Payments shows $122 in general payments to Leonard Oken from 1 company from 2025 to 2025. The largest total came from Shionogi Inc.
How long has Leonard A. Oken been practicing?
Leonard Oken's NPI was assigned in 2006.
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