Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marc Elliott Finkelstein, M.D.
Specialist in Bay Shore, NY · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1801892906
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Registry record
Entity type Individual (Type 1)
Name Dr. Marc Elliott Finkelstein
Credential M.D.
Sex Male
Practice address 10 Brentwood Rd, Bay Shore, NY, 11706
Phone (631) 665-8200
Fax (631) 665-8914
Enumeration date Jun 23, 2005
Last updated in NPPES Dec 18, 2013
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 |
|---|---|---|---|
| 01075992 | Medicaid | NY | - |
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
What is the NPI number for Marc Finkelstein?
The National Provider Identifier (NPI) for Marc Finkelstein is 1801892906, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marc Finkelstein practice?
The practice location on file with NPPES is in Bay Shore, NY. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Robert Turoff Specialist · Bay Shore, NY NPI 1316943459 Nelson Giraldo Family Medicine Physician · Bay Shore, NY NPI 1902996093 New York Crh Surgeon & Associates, PC Surgery Physician · Bay Shore, NY NPI 1437335726 Suffolk Surgical Associates PC Specialist · Bay Shore, NY NPI 1922265354 Marinel Ardeljan Surgery Physician · Bay Shore, NY NPI 1710121108 H. Tad Troutman, Ph.D., Psychologist, Pllc Clinical Psychologist · Bay Shore, NY NPI 1033434782
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-18.