What is Dennis Berg's NPI number?

Dennis Berg's National Provider Identifier (NPI) is 1881782324, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Dennis Berg's specialty?

Dennis Berg is listed in the NPPES registry with a primary specialty of Periodontics (Dental Providers).

Where is Dennis Berg located?

Dennis Berg's practice location on file with NPPES is 1 Suffolk Sq., Islandia, NY 11749.

What is Dennis Berg's phone number?

The practice phone number listed in the NPPES registry for Dennis Berg is (631) 348-7777.

Is Dennis Berg's NPI active?

Yes — Dennis Berg's NPI (1881782324) is active in the NPPES registry as of the last update on 2025-09-11.

IndividualActive

Dennis Berg, DDS

NPI 1881782324 · Periodontics · Islandia, NY

Dennis Berg, DDS is a Periodontics provider in Islandia, NY (NPI 1881782324).

Provider details

NPI number: 1881782324
Entity type: Individual
Primary specialty: PeriodonticsDental Providers
Credential: DDS
Sex: Male
Sole proprietor: No
License: 46370 (NY)

Specialties & taxonomies

PeriodonticsPrimary1223P0300XLicense 48592 (NY)
Dental Providers
Dentist122300000XLicense 46370 (NY)
Dental Providers

Profile Score

Detailed profile(90/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
19 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

1 Suffolk Sq.

Ste 200

Islandia, NY 11749

Phone: (631) 348-7777

Fax: (631) 348-7794

Approximate (ZIP-level) locationGet directions

More NY providers

Mailing address

1601 Veterans Memmorial Hwy