Steven Wonseok Jang, DO
Family Medicine Physician · New York, NY
Steven Wonseok Jang, DO is a family medicine physician with a practice address in New York, New York, and NPI 1366139586, issued on Apr 18, 2023. Check the license (New York 342783, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Steven Wonseok Jang
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 342783 NY
Self-reported in NPPES; status is on the state search - Practice location
- 200 W 57TH St Ste 1208, New York, NY 10019
- Phone
- (212) 247-8100
- Enumerated
- Apr 18, 2023
- Record last updated
- Jun 18, 2026
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,417 in New York → Look up another NPI →
Verify Steven Wonseok Jang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 342783Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
22 Medicare Part D claims for 12 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Steven Wonseok Jang among 6,417 family medicine physician records in New York
Steven Wonseok Jang, DO is one of 6,417 family medicine physician records with a practice address in New York. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 96% of them.
- NPI issued2023 · 96% of these records are older, 2% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in New York
There are 6,417 family medicine physician records in New York.
All 6,417 in New York → Every provider in New York → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Lawrence Adler, M.D.New York, NY 100191609898469
- Maggie Bertisch, MDNew York, NY 100191730229303
- Todd Cowdery, MDNew York, NY 100191245561778
- Orin Douglas, MDNew York, NY 100191487810636
- Keith Greenberg, D.O.New York, NY 100191215008339
- Leila Hagshenas, MDNew York, NY 100191487811733
- Gerald Leichman, M.D.New York, NY 100191982701066
- Hosi Padamadan, MDNew York, NY 100191396708657
Common questions
What is Steven Wonseok Jang, DO's NPI number?
Steven Wonseok Jang, DO's National Provider Identifier (NPI) is 1366139586, issued on Apr 18, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Steven Wonseok Jang, DO located?
The NPPES record lists a practice address at 200 W 57TH St Ste 1208, New York, NY, 10019. Phone: (212) 247-8100. Providers update this record themselves, so call before visiting.
How can I verify Steven Wonseok Jang, DO's license?
NPPES lists New York license number 342783, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Steven Wonseok Jang, DO prescribe under Medicare Part D?
In 2024, Steven Wonseok Jang, DO had 22 Medicare Part D claims for 12 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.