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MARC A. GREER DMD
NPI 1205011046
Dentist - General Practice in Portsmouth, NH

Active since December 28, 2007
85 MERRIMAC ST, PORTSMOUTH, NH 03801(603) 436-6922 Get Directions Write a Review

NPPES record last updated: December 28, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Marc A. Greer Dmd NPPES

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

MARC A. GREER DMD (NPI 1205011046) is a healthcare organization registered as a general practice in Portsmouth, New Hampshire and active in the NPI registry since December 2007. The organization lists Marc A. Greer, Owner, as its authorized official.

NPPES Registry Identity

NPI1205011046
Entity TypeOrganization
Primary Taxonomy1223G0001X
Legal Business NameMARC A. GREER DMD
Location Address85 MERRIMAC STPortsmouth, NH 03801-5124
Mailing Address85 Merrimac StreetPortsmouth, NH 03801-5124 · (603) 436-6922
Phone(603) 436-6922
Organization SubpartNo
Authorized OfficialMarc A. GreerOwner · (603) 436-6922
Enumeration DateDecember 28, 2007
✔ NPI 1205011046 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 · 2328
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 Identifiers 1

Other1223G0001XNH · Dental

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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
DR. 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 A. Greer Dmd's NPI number?

The NPI number for Marc A. Greer Dmd is 1205011046. It was assigned to this organization in the NPPES registry on December 28, 2007.

Where is Marc A. Greer Dmd located?

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

What is Marc A. Greer Dmd'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 A. Greer Dmd was last updated on December 28, 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.