William Heintz, DMD
NPI 1366525404 · Orthodontics and Dentofacial Orthopedics Dentistry · Alton, IL
William Heintz, DMD is a Orthodontics and Dentofacial Orthopedics Dentistry provider in Alton, IL (NPI 1366525404).
Provider details
- NPI number
- 1366525404
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- DMD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Dental Providers
Profile Score
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
83% 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
Mailing address
Registry dates
- Enumerated
- 2006-10-23
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Heintz's NPI number?
- William Heintz's National Provider Identifier (NPI) is 1366525404, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Heintz's specialty?
- William Heintz is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is William Heintz located?
- William Heintz's practice location on file with NPPES is 2828 Homer M Adams Pkwy, Alton, IL 62002-4855.
- What is William Heintz's phone number?
- The practice phone number listed in the NPPES registry for William Heintz is (618) 465-7423.
- Is William Heintz's NPI active?
- Yes — William Heintz's NPI (1366525404) 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.