What is Willem Ouw's NPI number?

Willem Ouw's National Provider Identifier (NPI) is 1174671317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Willem Ouw's specialty?

Willem Ouw is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).

Where is Willem Ouw located?

Willem Ouw's practice location on file with NPPES is 40 Broadway, Newark, NJ 07104-2530.

What is Willem Ouw's phone number?

The practice phone number listed in the NPPES registry for Willem Ouw is (973) 481-6057.

Is Willem Ouw's NPI active?

Yes — Willem Ouw's NPI (1174671317) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

Willem Ouw, MD

NPI 1174671317 · Specialist · Newark, NJ

Willem Ouw, MD is a Specialist provider in Newark, NJ (NPI 1174671317).

Provider details

NPI number: 1174671317
Entity type: Individual
Primary specialty: SpecialistOther Service Providers
Credential: MD
Sex: Male
Sole proprietor: Yes
License: MA043595 (NJ)

Practice location

40 Broadway

Newark, NJ 07104-2530

Phone: (973) 481-6057

Fax: (973) 481-0106

Street-level locationGet directions

More NJ providers

Mailing address

40 Broadway

Newark, NJ 07104-2530

Specialties & taxonomies

SpecialistPrimary174400000XLicense MA043595 (NJ)
Other Service 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.

Enumerated: 2007-01-06
Last updated: 2007-07-08

Frequently asked questions

What is Willem Ouw's NPI number?: Willem Ouw's National Provider Identifier (NPI) is 1174671317, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is Willem Ouw's specialty?: Willem Ouw is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
Where is Willem Ouw located?: Willem Ouw's practice location on file with NPPES is 40 Broadway, Newark, NJ 07104-2530.
What is Willem Ouw's phone number?: The practice phone number listed in the NPPES registry for Willem Ouw is (973) 481-6057.
Is Willem Ouw's NPI active?: Yes — Willem Ouw's NPI (1174671317) 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