Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Lee S Fleischer, MD
Surgery Physician in West Nyack, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275541021
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Registry record
Entity type Individual (Type 1)
Name Lee S Fleischer
Credential MD
Sex Male
Practice address 1 Crosfield Ave, Suite 105, West Nyack, NY, 10994
Phone (845) 535-3362
Fax (845) 535-3368
Enumeration date Aug 4, 2006
Last updated in NPPES Jul 6, 2011
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 14184 | Other | - | GHI HMO |
| 35L751 | Other | - | EMPIRE BLUE CROSS |
| 0101614 | Other | - | GHI |
| 0119191 | Other | - | AETNA HMO |
| 175057 | Other | - | HIP OF NY |
| 0D3803 | Other | - | HEALTHNET NE |
| 4414421 | Other | - | AETNA TRADITIONAL |
| 01366292 | Medicaid | NY | - |
| RS366 | Other | - | OXFORD |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Lee Fleischer practice?
The practice location on file with NPPES is in West Nyack, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lee Fleischer?
The National Provider Identifier (NPI) for Lee Fleischer is 1275541021, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-06.