OrganizationActive
William A. Seper, D.D.S., P.C.
NPI 1700968450 · General Practice Dentistry · Orland Park, IL
William A. Seper, D.D.S., P.C. is a General Practice Dentistry organization in Orland Park, IL (NPI 1700968450).
Provider details
- NPI number
- 1700968450
- Entity type
- Organization
- Primary specialty
- General Practice DentistryDental Providers
- Organization subpart
- No
- Authorized official
- William Seper, President(708) 403-0100
Specialties & taxonomies
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
9661 W 143rd St
Suite 100
Orland Park, IL 60462-2088
Phone: (708) 403-0100
Fax: (708) 403-8657
Street-level locationGet directions
Mailing address
9661 W 143rd St
Orland Park, IL 60462-2088
Other names (DBA / former)
- Doing business as
- Orland Dental Center
Registry dates
- Enumerated
- 2006-10-20
- Last updated
- 2020-08-22
Frequently asked questions
- What is William A. Seper, D.D.S., P.C.'s NPI number?
- William A. Seper, D.D.S., P.C.'s National Provider Identifier (NPI) is 1700968450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William A. Seper, D.D.S., P.C.?
- William A. Seper, D.D.S., P.C. is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
- Where is William A. Seper, D.D.S., P.C. located?
- William A. Seper, D.D.S., P.C.'s practice location on file with NPPES is 9661 W 143rd St, Orland Park, IL 60462-2088.
- What is William A. Seper, D.D.S., P.C.'s phone number?
- The practice phone number listed in the NPPES registry for William A. Seper, D.D.S., P.C. is (708) 403-0100.
- Who is the authorized official for William A. Seper, D.D.S., P.C.?
- The authorized official listed on William A. Seper, D.D.S., P.C.'s NPPES record is William Seper, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William A. Seper, D.D.S., P.C.'s NPI active?
- Yes — William A. Seper, D.D.S., P.C.'s NPI (1700968450) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.