Stephen W. Hiatt DDS and Maryann L. Udy DMD PC
NPI 1336314079 · Oral and Maxillofacial Surgery (Dentist) · O Fallon, MO
Stephen W. Hiatt DDS and Maryann L. Udy DMD PC is a Oral and Maxillofacial Surgery (Dentist) organization in O Fallon, MO (NPI 1336314079).
Provider details
- NPI number
- 1336314079
- Entity type
- Organization
- Primary specialty
- Oral and Maxillofacial Surgery (Dentist)Dental Providers
- Organization subpart
- No
- Authorized official
- Lana Wisniewski, Business Manager(636) 978-6967
- License
- 011813 (MO)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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
Mailing address
Other names (DBA / former)
- Former legal business name
- George T. Shuert DDS and Stephen W. Hiatt DDS PC
Registry dates
- Enumerated
- 2008-04-24
- Last updated
- 2019-06-28
Frequently asked questions
- What is Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's NPI number?
- Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's National Provider Identifier (NPI) is 1336314079, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stephen W. Hiatt DDS and Maryann L. Udy DMD PC?
- Stephen W. Hiatt DDS and Maryann L. Udy DMD PC is classified in the NPPES registry as Oral and Maxillofacial Surgery (Dentist) (Dental Providers).
- Where is Stephen W. Hiatt DDS and Maryann L. Udy DMD PC located?
- Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's practice location on file with NPPES is 2992 Highway K, O Fallon, MO 63368-7861.
- What is Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's phone number?
- The practice phone number listed in the NPPES registry for Stephen W. Hiatt DDS and Maryann L. Udy DMD PC is (636) 978-6967.
- Who is the authorized official for Stephen W. Hiatt DDS and Maryann L. Udy DMD PC?
- The authorized official listed on Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's NPPES record is Lana Wisniewski, Business Manager. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's NPI active?
- Yes — Stephen W. Hiatt DDS and Maryann L. Udy DMD PC's NPI (1336314079) is active in the NPPES registry as of the last update on 2019-06-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.