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

DR. WARREN BRUCE DALWIN D. M. D.
NPI 1306896055
Dentist - General Practice in Harvard, MA

Active since May 12, 2006
325 AYER RD, HARVARD, MA 01451(978) 772-6658(978) 772-0122 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Warren Bruce Dalwin D. M. D. NPPES

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

DR. WARREN BRUCE DALWIN D. M. D. (NPI 1306896055) is an individual general practice provider in Harvard, Massachusetts, licensed in Massachusetts (14533) and active in the NPI registry since May 2006.

NPPES Registry Identity

NPI1306896055
Entity TypeIndividualMale
Primary Taxonomy1223G0001X
Provider Legal NameDR. WARREN BRUCE DALWINCredential: D. M. D.
Location Address325 AYER RDHarvard, MA 01451-1132
Mailing Address325 Ayer RdHarvard, MA 01451-1132
Fax(978) 772-0122
Sole ProprietorNo
Enumeration DateMay 12, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1306896055 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 · 14533
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.
325 AYER RD, Harvard, MA 01451

Accepted Insurance

Other Providers at the Same Location NPPES 14

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

Physical Therapist
325 AYER RD
HARVARD, MA 01451
Dentist
325 AYER RD
HARVARD, MA 01451
Family Medicine
325 AYER RD
HARVARD, MA 01451
Physical Therapist
325 AYER RD
HARVARD, MA 01451
Physical Therapist (Orthopedic)
325 AYER RD
HARVARD, MA 01451
Physical Therapist (Orthopedic)
325 AYER RD
HARVARD, MA 01451
Physical Therapist
325 AYER RD
HARVARD, MA 01451
Physical Therapist
325 AYER RD
HARVARD, MA 01451

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 Warren Dalwin's NPI number?

The NPI number for Warren Dalwin is 1306896055. It was assigned to this individual provider in the NPPES registry on May 12, 2006.

Where is Warren Dalwin located?

Warren Dalwin practices at 325 Ayer Rd, Harvard, MA 01451. The listed phone number is (978) 772-6658.

What is Warren Dalwin's specialty?

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

What insurance does Warren Dalwin accept?

Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Humana list Warren Dalwin as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Warren Dalwin 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 28 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.