Marie Schaaf, PH.D.
NPI 1811328800 · Clinical Neuropsychologist · Bismarck, ND
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marie Schaaf, PH.D. is a Clinical Neuropsychologist provider in Bismarck, ND (NPI 1811328800).
Provider details
- NPI number
- 1811328800
- Entity type
- Individual
- Primary specialty
- Clinical NeuropsychologistBehavioral Health & Social Service Providers
- Credential
- PH.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- PSY-PSY-LIC 1304 (MT)
Specialties & taxonomies
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 tenure28% of score
12 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
435 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Administration of Psychological Or Neuropsychological Test By Technician, Each Additional 30 Minutes96139 | 211 | $34 |
| Evaluation of Neuropsychological Test, Each Additional Hour96133 | 58 | $73 |
| Exam of Neurobehavioral Status, First Hour96116 | 55 | $76 |
| Evaluation of Neuropsychological Test, First Hour96132 | 52 | $101 |
| Administration of Psychological Or Neuropsychological Test By Technician, First 30 Minutes96138 | 29 | $33 |
| Exam of Neurobehavioral Status, First Hour96116 | 18 | $77 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-12-02
- Last updated
- 2025-02-26
- Certified
- 2025-02-26
Frequently asked questions
- What is Marie Schaaf's NPI number?
- Marie Schaaf's National Provider Identifier (NPI) is 1811328800, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marie Schaaf's specialty?
- Marie Schaaf is listed in the NPPES registry with a primary specialty of Clinical Neuropsychologist (Behavioral Health & Social Service Providers).
- Where is Marie Schaaf located?
- Marie Schaaf's practice location on file with NPPES is 4535 Northern Sky Dr, Bismarck, ND 58503-8538.
- What is Marie Schaaf's phone number?
- The practice phone number listed in the NPPES registry for Marie Schaaf is (701) 323-8700.
- Does Marie Schaaf accept Medicare?
- Marie Schaaf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marie Schaaf's NPI active?
- Yes — Marie Schaaf's NPI (1811328800) is active in the NPPES registry as of the last update on 2025-02-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.