DR. MARC A GREER DMD
NPI 1467476499
Dentist - General Practice in Portsmouth, NH

Q: What is Marc Greer's NPI number?

The NPI number for Marc Greer is 1467476499. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Q: What is Marc Greer'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 Marc Greer was last updated on December 19, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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 July 26, 2006

85 MERRIMAC ST, PORTSMOUTH, NH 03801(603) 436-6922 Get Directions Write a Review

NPPES record last updated: December 19, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Marc A Greer Dmd NPPES

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

DR. MARC A GREER DMD (NPI 1467476499) is an individual general practice provider in Portsmouth, New Hampshire, licensed in New Hampshire (2326) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1467476499

Entity TypeIndividualMale

Primary Taxonomy1223G0001X

Provider Legal NameDR. MARC A GREERCredential: DMD

Location Address85 MERRIMAC STPortsmouth, NH 03801-5124

Mailing Address85 Merrimac StPortsmouth, NH 03801-5124 · (603) 436-6922

Phone(603) 436-6922

Sole ProprietorYes

Enumeration DateJuly 26, 2006

Last NPPES UpdateDecember 19, 2007

✔ NPI 1467476499 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDentist · General PracticeDental Providers

Taxonomy Code1223G0001X

License✔ Licensed in NH · 2326

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.

85 MERRIMAC ST, Portsmouth, NH 03801

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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HOMETOWN DENTAL

Clinic/Center (Dental)

85 MERRIMAC ST
PORTSMOUTH, NH 03801

Rockingham County (603) 436-6922

MARC A. GREER DMD

Dentist (General Practice)

85 MERRIMAC ST
PORTSMOUTH, NH 03801

Rockingham County (603) 436-6922

DR. BENJAMIN IRZYK DMD

Dentist

85 MERRIMAC ST
PORTSMOUTH, NH 03801

Rockingham County (603) 436-6922

DR. JANET ALLAIRE DMD

Dentist (General Practice)

85 MERRIMAC ST
PORTSMOUTH, NH 03801

Rockingham County (603) 436-6922

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 Marc Greer's NPI number?

The NPI number for Marc Greer is 1467476499. It was assigned to this individual provider in the NPPES registry on July 26, 2006.

Where is Marc Greer located?

Marc Greer practices at 85 Merrimac St, Portsmouth, NH 03801. The listed phone number is (603) 436-6922.

What is Marc Greer'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 Marc Greer was last updated on December 19, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.