IndividualActive
Nancy Williger, PH D
NPI 1023026655 · Psychologist · Saint Louis, MO
Nancy Williger, PH D is a Psychologist provider in Saint Louis, MO (NPI 1023026655).
Provider details
- NPI number
- 1023026655
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PH D
- Sex
- Female
- Sole proprietor
- Yes
- License
- PYO1336 (MO)
Specialties & taxonomies
Behavioral Health & Social Service 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
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
745 Old Frontenac Sq
Ste 201
Saint Louis, MO 63131-2754
Phone: (314) 993-4001
Fax: (314) 993-5424
Street-level locationGet directions
Mailing address
745 Old Frontenac Sq
Saint Louis, MO 63131-2754
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Nancy Williger's NPI number?
- Nancy Williger's National Provider Identifier (NPI) is 1023026655, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Williger's specialty?
- Nancy Williger is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Nancy Williger located?
- Nancy Williger's practice location on file with NPPES is 745 Old Frontenac Sq, Saint Louis, MO 63131-2754.
- What is Nancy Williger's phone number?
- The practice phone number listed in the NPPES registry for Nancy Williger is (314) 993-4001.
- Is Nancy Williger's NPI active?
- Yes — Nancy Williger's NPI (1023026655) 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.