Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. ROBERT I. ORENSTEIN D.M.D.
NPI 1871596437
Dentist - General Practice in Yarmouth Port, MA

Q: What is Robert Orenstein's NPI number?

The NPI number for Robert Orenstein is 1871596437. It was assigned to this individual provider in the NPPES registry on May 27, 2005.

Q: What is Robert Orenstein's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

Q: When was this NPI record last updated?

The NPPES record for Robert Orenstein was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 27, 2005

SUNFLOWER MARKET PLACE RT 6A, YARMOUTH PORT, MA 02675(508) 362-8188(508) 362-8217 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. Robert I. Orenstein D.m.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. ROBERT I. ORENSTEIN D.M.D. (NPI 1871596437) is an individual general practice provider in Yarmouth Port, Massachusetts, licensed in Massachusetts (13108) and active in the NPI registry since May 2005.

NPPES Registry Identity

NPI1871596437

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. ROBERT I. ORENSTEINCredential: D.M.D.

Location AddressSUNFLOWER MARKET PLACE RT 6AYarmouth Port, MA 02675

Mailing AddressSunflower Market Place Rt 6aYarmouth Port, MA 02675 · (508) 362-8188 · Fax (508) 362-8217

Phone(508) 362-8188

Fax(508) 362-8217

Sole ProprietorNo

Enumeration DateMay 27, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1871596437 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in MA · 13108

Definition

A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs.

SUNFLOWER MARKET PLACE RT 6A, Yarmouth Port, MA 02675

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Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Robert Orenstein's NPI number?

The NPI number for Robert Orenstein is 1871596437. It was assigned to this individual provider in the NPPES registry on May 27, 2005.

Where is Robert Orenstein located?

Robert Orenstein practices at Sunflower Market Place Rt 6A, Yarmouth Port, MA 02675. The listed phone number is (508) 362-8188.

What is Robert Orenstein's specialty?

The primary specialty registered for this NPI is Dentist, specializing in General Practice, with taxonomy code 1223G0001X.

When was this NPI record last updated?

The NPPES record for Robert Orenstein was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 42 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.