Matthew Niedzwiecki, MD
NPI 1174859284 · Psychiatry Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Niedzwiecki, MD is a Psychiatry Physician provider in Loma Linda, CA (NPI 1174859284).
Provider details
- NPI number
- 1174859284
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 22784 (NH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 500 W Court StKankakee, IL 60901-3661Phone: (281) 836-4735
- 4810 Riverstone Blvd Ste 100Missouri City, TX 77459-4092Phone: (281) 836-4735
Registry dates
- Enumerated
- 2009-10-23
- Last updated
- 2026-01-12
- Certified
- 2026-01-12
Frequently asked questions
- What is Matthew Niedzwiecki's NPI number?
- Matthew Niedzwiecki's National Provider Identifier (NPI) is 1174859284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Niedzwiecki's specialty?
- Matthew Niedzwiecki is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Niedzwiecki located?
- Matthew Niedzwiecki's practice location on file with NPPES is 11332 Mountain View Ave Ste C, Loma Linda, CA 92354-3854.
- What is Matthew Niedzwiecki's phone number?
- The practice phone number listed in the NPPES registry for Matthew Niedzwiecki is (401) 390-6297.
- Does Matthew Niedzwiecki accept Medicare?
- Matthew Niedzwiecki is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Niedzwiecki's NPI active?
- Yes — Matthew Niedzwiecki's NPI (1174859284) is active in the NPPES registry as of the last update on 2026-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.