Madeleine Hardt, PHD
NPI 1598413056 · Psychologist · Stony Brook, NY
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Madeleine Hardt, PHD is a Psychologist provider in Stony Brook, NY (NPI 1598413056).
Provider details
- NPI number
- 1598413056
- Entity type
- Individual
- Primary specialty
- PsychologistBehavioral Health & Social Service Providers
- Credential
- PHD
- Sex
- Female
- Sole proprietor
- No
- License
- 026958-01 (NY)
Specialties & taxonomies
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
4 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
Registry dates
- Enumerated
- 2022-03-14
- Last updated
- 2025-08-08
- Certified
- 2025-08-08
Frequently asked questions
- What is Madeleine Hardt's NPI number?
- Madeleine Hardt's National Provider Identifier (NPI) is 1598413056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Madeleine Hardt's specialty?
- Madeleine Hardt is listed in the NPPES registry with a primary specialty of Psychologist (Behavioral Health & Social Service Providers).
- Where is Madeleine Hardt located?
- Madeleine Hardt's practice location on file with NPPES is 101 Nicolls Rd, Stony Brook, NY 11794-2222.
- What is Madeleine Hardt's phone number?
- The practice phone number listed in the NPPES registry for Madeleine Hardt is (631) 444-2990.
- Does Madeleine Hardt accept Medicare?
- Madeleine Hardt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Madeleine Hardt's NPI active?
- Yes — Madeleine Hardt's NPI (1598413056) is active in the NPPES registry as of the last update on 2025-08-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.