Heather Sassman, PHD
NPI 1346734951 · Clinical Psychologist · Belleville, IL
Enrolled with Medicare as Order and Referring Only - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Heather Sassman, PHD is a Clinical Psychologist provider in Belleville, IL (NPI 1346734951).
Provider details
- NPI number
- 1346734951
- Entity type
- Individual
- Primary specialty
- Clinical PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 06219 (MD)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
8 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 12680 Olive Blvd Ste 200Saint Louis, MO 63141-6322Phone: (314) 872-3345
Registry dates
- Enumerated
- 2018-06-18
- Last updated
- 2025-06-23
- Certified
- 2025-06-23
Frequently asked questions
- What is Heather Sassman's NPI number?
- Heather Sassman's National Provider Identifier (NPI) is 1346734951, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Heather Sassman's specialty?
- Heather Sassman is listed in the NPPES registry with a primary specialty of Clinical Psychologist (Behavioral Health & Social Service Providers).
- Where is Heather Sassman located?
- Heather Sassman's practice location on file with NPPES is 144 Lincoln Place Ct Ste 3, Belleville, IL 62221-5878.
- What is Heather Sassman's phone number?
- The practice phone number listed in the NPPES registry for Heather Sassman is (618) 671-9283.
- Does Heather Sassman accept Medicare?
- Heather Sassman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Heather Sassman's NPI active?
- Yes — Heather Sassman's NPI (1346734951) is active in the NPPES registry as of the last update on 2025-06-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.