Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Laurence Eric Mermelstein, M.D.

Orthopaedic Surgery of the Spine Physician in Commack, NY · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1326062332

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Laurence Eric Mermelstein

Credential M.D.

Sex Male

Practice address 763 Larkfield Rd, 2nd Floor, Commack, NY, 11725

Phone (631) 462-2225

Fax (631) 462-2240

Enumeration date Jul 26, 2006

Last updated in NPPES Feb 28, 2008

Taxonomy & licenses

207XS0117X Orthopaedic Surgery of the Spine Physician Allopathic & Osteopathic Physicians · License 203037 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Laurence Mermelstein?

Laurence Mermelstein is registered in NPPES with the primary taxonomy of Orthopaedic Surgery of the Spine Physician. 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.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-28.