Matthew Leiman, DO
NPI 1306586185 · Internal Medicine Physician · Woodbury, NY
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Leiman, DO is a Internal Medicine Physician provider in Woodbury, NY (NPI 1306586185).
Provider details
- NPI number
- 1306586185
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 334871-01 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-03-30
- Last updated
- 2026-06-04
- Certified
- 2026-06-04
Frequently asked questions
- What is Matthew Leiman's NPI number?
- Matthew Leiman's National Provider Identifier (NPI) is 1306586185, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Leiman's specialty?
- Matthew Leiman is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Leiman located?
- Matthew Leiman's practice location on file with NPPES is 321 Crossways Park Dr, Woodbury, NY 11797-2013.
- What is Matthew Leiman's phone number?
- The practice phone number listed in the NPPES registry for Matthew Leiman is (516) 405-7100.
- Does Matthew Leiman accept Medicare?
- Matthew Leiman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Leiman's NPI active?
- Yes — Matthew Leiman's NPI (1306586185) is active in the NPPES registry as of the last update on 2026-06-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.