Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Diogenes Fermin Mercedes, M.D.
Surgical Assistant in New York, NY · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1316335326
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Registry record
Entity type Individual (Type 1)
Name Diogenes Fermin Mercedes
Credential M.D.
Sex Male
Practice address 521 W 168th St Apt 4, New York, NY, 10032
Phone (917) 403-9220
Enumeration date Dec 27, 2014
Last updated in NPPES Dec 27, 2014
Taxonomy & licenses
246ZC0007X Surgical Assistant Technologists, Technicians & Other Technical Service Providers · License 14-208 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
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 specialty is Diogenes Fermin Mercedes?
Diogenes Fermin Mercedes is registered in NPPES with the primary taxonomy of Surgical Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-12-27.