Katherine Niedt, MD
NPI 1639666043 · Psychiatry Physician · Hackensack, NJ
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Niedt, MD is a Psychiatry Physician provider in Hackensack, NJ (NPI 1639666043).
Provider details
- NPI number
- 1639666043
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 25MA11811500 (NJ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
- 2018-04-20
- Last updated
- 2023-10-02
- Certified
- 2023-10-02
Frequently asked questions
- What is Katherine Niedt's NPI number?
- Katherine Niedt's National Provider Identifier (NPI) is 1639666043, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Niedt's specialty?
- Katherine Niedt is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Niedt located?
- Katherine Niedt's practice location on file with NPPES is 211 Essex St Ste 204, Hackensack, NJ 07601-3245.
- What is Katherine Niedt's phone number?
- The practice phone number listed in the NPPES registry for Katherine Niedt is (201) 487-1240.
- Does Katherine Niedt accept Medicare?
- Katherine Niedt is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Niedt's NPI active?
- Yes — Katherine Niedt's NPI (1639666043) is active in the NPPES registry as of the last update on 2023-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.