What is William Warren's NPI number?

William Warren's National Provider Identifier (NPI) is 1578677571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Warren's specialty?

William Warren is listed in the NPPES registry with a primary specialty of Pediatric Dentistry (Dental Providers).

Where is William Warren located?

William Warren's practice location on file with NPPES is 127 Pine St, Montclair, NJ 07042-4855.

What is William Warren's phone number?

The practice phone number listed in the NPPES registry for William Warren is (973) 655-8075.

Is William Warren's NPI active?

Yes — William Warren's NPI (1578677571) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

William Warren, D.D.S.

NPI 1578677571 · Pediatric Dentistry · Montclair, NJ

William Warren, D.D.S. is a Pediatric Dentistry provider in Montclair, NJ (NPI 1578677571).

Provider details

NPI number: 1578677571
Entity type: Individual
Primary specialty: Pediatric DentistryDental Providers
Credential: D.D.S.
Sex: Male
Sole proprietor: No
License: 22DI00904400 (NJ)

Practice location

127 Pine St

Suite 3

Montclair, NJ 07042-4855

Phone: (973) 655-8075

Fax: (973) 655-8073

Street-level locationGet directions

More NJ providers

Mailing address

127 Pine St

Montclair, NJ 07042-4855

Specialties & taxonomies

Pediatric DentistryPrimary1223P0221XLicense 22DI00904400 (NJ)
Dental Providers

Profile Score

Detailed profile(91/100 index)

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

Registry tenure38% of score
20 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.

Enumerated: 2006-08-18
Last updated: 2007-07-08

Frequently asked questions

What is William Warren's NPI number?: William Warren's National Provider Identifier (NPI) is 1578677571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Warren's specialty?: William Warren is listed in the NPPES registry with a primary specialty of Pediatric Dentistry (Dental Providers).
Where is William Warren located?: William Warren's practice location on file with NPPES is 127 Pine St, Montclair, NJ 07042-4855.
What is William Warren's phone number?: The practice phone number listed in the NPPES registry for William Warren is (973) 655-8075.
Is William Warren's NPI active?: Yes — William Warren's NPI (1578677571) is active in the NPPES registry as of the last update on 2007-07-08.

Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.

Provider details

Practice location

Mailing address

Specialties & taxonomies

Profile Score

Registry dates

Frequently asked questions

Specialties & taxonomies

Profile Score

Frequently asked questions