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John Walkonis, DDS
NPI 1194762138 · Dentist · Saint Charles, MO
John Walkonis, DDS is a Dentist provider in Saint Charles, MO (NPI 1194762138).
Provider details
- NPI number
- 1194762138
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- DDS
- Sex
- Male
- License
- 012877 (MO)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
300 1st Capitol Dr
Saint Charles, MO 63301-2844
Phone: (636) 947-5000
Fax: (636) 947-5090
Street-level locationGet directions
Mailing address
1836 Lackland Hill Pkwy
Saint Louis, MO 63146-3572
Registry dates
- Enumerated
- 2006-05-31
- Last updated
- 2007-07-08
Frequently asked questions
- What is John Walkonis's NPI number?
- John Walkonis's National Provider Identifier (NPI) is 1194762138, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Walkonis's specialty?
- John Walkonis is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is John Walkonis located?
- John Walkonis's practice location on file with NPPES is 300 1st Capitol Dr, Saint Charles, MO 63301-2844.
- What is John Walkonis's phone number?
- The practice phone number listed in the NPPES registry for John Walkonis is (636) 947-5000.
- Is John Walkonis's NPI active?
- Yes — John Walkonis's NPI (1194762138) 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.