Matthew J. Niedzwiecki, MD
Psychiatry Physician · Loma Linda, CA
Matthew J. Niedzwiecki, MD is a psychiatry physician with a practice address in Loma Linda, California, and NPI 1174859284, issued on Oct 23, 2009. Check the license (California C156972, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Matthew J. Niedzwiecki
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License numbers
- C156972 CA
036.130526 IL
2017-01279 NC
22784 NH
25MA10564100 NJ
and 2 more
Self-reported in NPPES; status is on the state search - Practice location
- 11332 Mountain View Ave Ste C, Loma Linda, CA 92354
- Phone
- (401) 390-6297
- Enumerated
- Oct 23, 2009
- Record last updated
- Jan 12, 2026
- Medicare enrollment
- Enrolled (PECOS I20250603003813); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 11332 Mountain View Ave Ste C
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Stephanie Fluitt, PA-CPhysician Assistant1952142556
- Priscilla Galindo-SalazarStudent in an Organized Health Care Education/Training Program1417811639
- Sridevi KorandAddiction Medicine (Family Medicine) Physician1700345709
- Christina KwonFamily Medicine Physician1073297842
- Charles Maddux, M.D.Ophthalmology Physician1346603974
Verify Matthew J. Niedzwiecki in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C156972Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 3 group practices
- Burke CenterLufkin, TX
- Heart OF Texas Region Mhmr CenterWaco, TX
- Texana CenterRosenberg, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Matthew J. Niedzwiecki among 8,673 psychiatry physician records in California
Matthew J. Niedzwiecki, MD is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 57% of them.
- NPI issued2009 · 57% of these records are older, 40% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 38% of these records are
- Graduated2009 · median 2005 among the 3,295 with a school on file
- Record last updated2026 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
47 psychiatry physician records list a practice address in Loma Linda
They are 47 of the 4,863 NPPES records with a practice address in Loma Linda, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Loma Linda → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Michael Christensen, M.D.Loma Linda, CA 923541518081967
- George Christison, M.D.Loma Linda, CA 923541174548135
- Jennifer FerrerLoma Linda, CA 923541821299660
- Teresa Frausto, M.D.Loma Linda, CA 923541992737068
- Leia Gill, M.D.Loma Linda, CA 923541396922605
- Carmen Gonzales-Nate, M.D.Loma Linda, CA 923541063578607
- Lauren Grawert, MDLoma Linda, CA 923541508093543
- Serafin Lalas, M.D.Loma Linda, CA 923541700050515
Common questions
What is Matthew J. Niedzwiecki, MD's NPI number?
Matthew J. Niedzwiecki, MD's National Provider Identifier (NPI) is 1174859284, issued on Oct 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Matthew J. Niedzwiecki, MD located?
The NPPES record lists a practice address at 11332 Mountain View Ave Ste C, Loma Linda, CA, 92354. Phone: (401) 390-6297. Providers update this record themselves, so call before visiting.
How can I verify Matthew J. Niedzwiecki, MD's license?
NPPES lists California license number C156972, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.