Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Geoffrey Gresser, DPM
Podiatrist in Mt Sinai, NY · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326056508
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Registry record
Entity type Individual (Type 1)
Name Mark Geoffrey Gresser
Credential DPM
Sex Male
Practice address 626 Canal Rd, Mt Sinai, NY, 11766
Phone (631) 331-3338
Fax (631) 331-0014
Enumeration date Aug 4, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DPM · Doctor of Podiatric Medicine: A physician specializing in medical and surgical care of the foot and ankle.
About the DPM credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 00886888 | 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
How do I verify Mark Gresser's NPI record?
Cross-check NPI 1326056508 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326056508 active?
Yes, as of the latest NPPES snapshot, NPI 1326056508 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.