NPI Portal NPI Lookup & Verification

Dr. Eric Allen Diamond, M.D.

Dr. Eric Allen Diamond is a Urology Physician provider (Urology) practicing in Plainview, NY, registered in the NPPES registry with NPI 1831118389 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1831118389
Entity type Individual (Type 1)
Name Dr. Eric Allen Diamond
Credential M.D.
Sex Male
Practice address Plainview, NY, 11803
Phone 5169333323
Fax 5169387718
Enumeration date 2006-07-18
Last updated in NPPES 2010-10-31

Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208800000X Urology Physician Primary 141261 NY

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
00797360 Medicaid NY
Copy-ready billing details
Provider: Eric Diamond, M.D.
NPI: 1831118389
Taxonomy: 208800000X (Urology Physician)
Address: Plainview, NY, 11803

Other providers at this practice address

NPI Name Type Specialty Location
1174534143 Sylvia Freed Individual Clinical Social Worker Plainview, NY
1154428738 Francesco Tenti Individual Vascular Surgery Physician Plainview, NY
1558455873 Gary Andrews Individual Psychiatry Physician Plainview, NY
1245324565 Eugene Gerardi Individual Allergy Physician Plainview, NY
1548348766 Thomas Capilupi Individual Legal Medicine Plainview, NY
1043375082 Brad Fell Individual Pediatric Adolescent Medicine Physician Plainview, NY
1376608323 Joel Kahan Individual Pediatrics Physician Plainview, NY
1952466914 Timothy Hogan Individual Pediatrics Physician Plainview, NY

Verify this record

Cross-check NPI 1831118389 against the authoritative CMS record: view Dr. Eric Allen Diamond on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

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.
What specialty is Eric Diamond?
Eric Diamond is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-10-31.