OrganizationActive
Drs. Kreuz and Duffner, DDS, Ltd.
NPI 1235283821 · General Practice Dentistry · Homewood, IL
Drs. Kreuz and Duffner, DDS, Ltd. is a General Practice Dentistry organization in Homewood, IL (NPI 1235283821).
Provider details
- NPI number
- 1235283821
- Entity type
- Organization
- Primary specialty
- General Practice DentistryDental Providers
- Organization subpart
- No
- Authorized official
- Gregory Duffner, Dentist(708) 798-6868
- License
- 019019782 (IL)
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
18040 Park Ave
Homewood, IL 60430-1606
Phone: (708) 798-6868
Fax: (708) 798-6988
Street-level locationGet directions
Mailing address
18040 Park Ave
Homewood, IL 60430-1606
Registry dates
- Enumerated
- 2007-01-22
- Last updated
- 2008-09-23
Frequently asked questions
- What is Drs. Kreuz and Duffner, DDS, Ltd.'s NPI number?
- Drs. Kreuz and Duffner, DDS, Ltd.'s National Provider Identifier (NPI) is 1235283821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Drs. Kreuz and Duffner, DDS, Ltd.?
- Drs. Kreuz and Duffner, DDS, Ltd. is classified in the NPPES registry as General Practice Dentistry (Dental Providers).
- Where is Drs. Kreuz and Duffner, DDS, Ltd. located?
- Drs. Kreuz and Duffner, DDS, Ltd.'s practice location on file with NPPES is 18040 Park Ave, Homewood, IL 60430-1606.
- What is Drs. Kreuz and Duffner, DDS, Ltd.'s phone number?
- The practice phone number listed in the NPPES registry for Drs. Kreuz and Duffner, DDS, Ltd. is (708) 798-6868.
- Who is the authorized official for Drs. Kreuz and Duffner, DDS, Ltd.?
- The authorized official listed on Drs. Kreuz and Duffner, DDS, Ltd.'s NPPES record is Gregory Duffner, Dentist. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Drs. Kreuz and Duffner, DDS, Ltd.'s NPI active?
- Yes — Drs. Kreuz and Duffner, DDS, Ltd.'s NPI (1235283821) is active in the NPPES registry as of the last update on 2008-09-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.