OrganizationActive
William J Frericks, DDS, Ltd
NPI 1790204386 · Dentist · Chicago, IL
William J Frericks, DDS, Ltd is a Dentist organization in Chicago, IL (NPI 1790204386).
Provider details
- NPI number
- 1790204386
- Entity type
- Organization
- Primary specialty
- DentistDental Providers
- Organization subpart
- No
- Authorized official
- William Frericks, Owner(312) 337-4424
Specialties & taxonomies
Dental Providers
Profile Score
Established profile(69/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 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
500 N Michigan Ave Ste 520
Chicago, IL 60611-3755
Phone: (312) 337-4424
Fax: (312) 822-0876
Street-level locationGet directions
Mailing address
500 N Michigan Ave Ste 520
Chicago, IL 60611-3755
Other names (DBA / former)
- Doing business as
- The Magnificent Smile
Registry dates
- Enumerated
- 2017-09-14
- Last updated
- 2022-07-21
Frequently asked questions
- What is William J Frericks, DDS, Ltd's NPI number?
- William J Frericks, DDS, Ltd's National Provider Identifier (NPI) is 1790204386, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is William J Frericks, DDS, Ltd?
- William J Frericks, DDS, Ltd is classified in the NPPES registry as Dentist (Dental Providers).
- Where is William J Frericks, DDS, Ltd located?
- William J Frericks, DDS, Ltd's practice location on file with NPPES is 500 N Michigan Ave Ste 520, Chicago, IL 60611-3755.
- What is William J Frericks, DDS, Ltd's phone number?
- The practice phone number listed in the NPPES registry for William J Frericks, DDS, Ltd is (312) 337-4424.
- Who is the authorized official for William J Frericks, DDS, Ltd?
- The authorized official listed on William J Frericks, DDS, Ltd's NPPES record is William Frericks, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is William J Frericks, DDS, Ltd's NPI active?
- Yes — William J Frericks, DDS, Ltd's NPI (1790204386) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.