Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Dr. Jeffrey H. Markowtiz, D.D.S., P.C.

Prosthodontics in Manhasset, NY · enumerated 2014 · authorized official Vanessa Martinez, Office Manager.

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

National Provider Identifier

1720482755

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Registry record

Entity type Organization (Type 2)

Legal business name Dr. Jeffrey H. Markowtiz, D.D.S., P.C.

Parent organization Dr. Jeffrey H. Markowtiz, D.D.S., P.C.

Practice address 1129 Northern Blvd, Suite #401, Manhasset, NY, 11030

Phone (516) 365-3535

Fax (516) 365-3748

Enumeration date Oct 20, 2014

Last updated in NPPES Oct 20, 2014

Taxonomy & classification

1223P0700X Prosthodontics Dental Providers · License 035133-1 (NY) Primary

Authorized official

Name Vanessa Martinez

Title Office Manager

Phone (516) 365-3535

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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-10-20. Verify at npiregistry.cms.hhs.gov.

Where is Dr. Jeffrey H. Markowtiz, D.D.S., P.C. located?

The practice location on file with NPPES is in Manhasset, NY.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-10-20.