Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Andrew Witrock, D.M.D.

Prosthodontics in Port Jefferson Station, NY · enumerated 2013.

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

National Provider Identifier

1235479924

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Registry record

Entity type Individual (Type 1)

Name Dr. Andrew Witrock

Credential D.M.D.

Sex Male

Practice address 5225 Nesconset Hwy Ste 40, Port Jefferson Station, NY, 11776

Phone (631) 928-2830

Enumeration date Feb 18, 2013

Last updated in NPPES Feb 18, 2013

Taxonomy & licenses

1223P0700X Prosthodontics Dental Providers · License 040514 (NY) Primary

DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD 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 is the NPI number for Andrew Witrock?

The National Provider Identifier (NPI) for Andrew Witrock is 1235479924, a Type 1 (individual) record in the CMS NPPES registry.

Where does Andrew Witrock practice?

The practice location on file with NPPES is in Port Jefferson Station, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Drs. Witrock & Axelrod, LLP Prosthodontics · Port Jefferson Station, NY NPI 1033231295 Diane Axelrod General Practice Dentistry · Port Jefferson Station, NY NPI 1316280571 Walter Homayoon DDS, PC Prosthodontics · Port Jefferson Station, NY NPI 1447115316

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-18.