Matthew Leiman, DO
Internal Medicine Physician · Woodbury, NY
Matthew Leiman, DO is an internal medicine physician with a practice address in Woodbury, New York, and NPI 1306586185, issued on Mar 30, 2022. Check the license (New York 334871-01, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Matthew Leiman
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 334871-01 NY
Self-reported in NPPES; status is on the state search - Practice location
- 321 Crossways Park Dr, Woodbury, NY 11797
- Phone
- (516) 405-7100
- Enumerated
- Mar 30, 2022
- Record last updated
- Jun 4, 2026
- Fax
- (718) 830-1015
- Medicare enrollment
- Enrolled (PECOS I20250819000892); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 12,067 in New York → Look up another NPI →
Also registered at 321 Crossways Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Matthew Leiman 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 334871-01Check 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 internal medicine physician in 2024
29 Medicare Part D claims for 17 beneficiaries, against an average of 3,176 among the 108,855 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.
Bills Medicare through one group practice
- North Shore-Lij Medical PCManhasset, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew Leiman among 12,067 internal medicine physician records in New York
Matthew Leiman, DO is one of 12,067 internal medicine physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2002 among the 7,221 with a school on file
- Record last updated2026 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 internal medicine physician records list a practice address in Woodbury
They are 8 of the 453 NPPES records with a practice address in Woodbury, and 12,067 internal medicine physician records in New York.
All 12,067 in New York → Every provider in Woodbury → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Shirley Goodman, MDWoodbury, NY 117971184667750
- Siddiqi Haque, MDWoodbury, NY 117971689207888
- Huy Hoang, MDWoodbury, NY 117971477828630
- Jeanine Huysman, MDWoodbury, NY 117971447207634
- Syed Kamal, M.D.Woodbury, NY 117971013232396
- Marjorie Mombeleur, M.D.,Woodbury, NY 117971831154889
- Brian Wetchler, D.O.Woodbury, NY 117971710253158
- Arthur Liclican, MDWyandanch, NY 117981255435665
Common questions
What is Matthew Leiman, DO's NPI number?
Matthew Leiman, DO's National Provider Identifier (NPI) is 1306586185, issued on Mar 30, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Leiman, DO located?
The NPPES record lists a practice address at 321 Crossways Park Dr, Woodbury, NY, 11797. Phone: (516) 405-7100. Providers update this record themselves, so call before visiting.
How can I verify Matthew Leiman, DO's license?
NPPES lists New York license number 334871-01, 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 Matthew Leiman, DO prescribe under Medicare Part D?
In 2024, Matthew Leiman, DO had 29 Medicare Part D claims for 17 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.