What is William Slavin's NPI number?

William Slavin's National Provider Identifier (NPI) is 1801019609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is William Slavin's specialty?

William Slavin is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).

Where is William Slavin located?

William Slavin's practice location on file with NPPES is 20200 Ashland Ave, Chicago Heights, IL 60411-1671.

What is William Slavin's phone number?

The practice phone number listed in the NPPES registry for William Slavin is (708) 755-1333.

Is William Slavin's NPI active?

Yes — William Slavin's NPI (1801019609) is active in the NPPES registry as of the last update on 2007-07-08.

IndividualActive

William Slavin, D.D.S.

NPI 1801019609 · General Practice Dentistry · Chicago Heights, IL

William Slavin, D.D.S. is a General Practice Dentistry provider in Chicago Heights, IL (NPI 1801019609).

Provider details

NPI number: 1801019609
Entity type: Individual
Primary specialty: General Practice DentistryDental Providers
Credential: D.D.S.
Sex: Male
Sole proprietor: No
License: 19-011551 (IL)

Practice location

20200 Ashland Ave

Chicago Heights, IL 60411-1671

Phone: (708) 755-1333

Approximate (ZIP-level) locationGet directions

More IL providers

Mailing address

20200 Ashland Ave

Chicago Heights, IL 60411-1671

Specialties & taxonomies

General Practice DentistryPrimary1223G0001XLicense 19-011551 (IL)
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.

Enumerated: 2007-04-10
Last updated: 2007-07-08

Frequently asked questions

What is William Slavin's NPI number?: William Slavin's National Provider Identifier (NPI) is 1801019609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
What is William Slavin's specialty?: William Slavin is listed in the NPPES registry with a primary specialty of General Practice Dentistry (Dental Providers).
Where is William Slavin located?: William Slavin's practice location on file with NPPES is 20200 Ashland Ave, Chicago Heights, IL 60411-1671.
What is William Slavin's phone number?: The practice phone number listed in the NPPES registry for William Slavin is (708) 755-1333.
Is William Slavin's NPI active?: Yes — William Slavin's NPI (1801019609) 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