CLIA lab
CLIA 05D1018990: Robert J Wielenga MD
Downey, CA. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 05D1018990 belongs to Robert J Wielenga MD in Downey, CA.
Certificate of Waiver, effective November 6, 2025, expires November 5, 2027.
Active in the CMS Provider of Services file posted October 16, 2026.
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Run it in Rivvi
Map your lab's test names to LOINC codes
Open in RivviFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Certificate
- Certificate type
- Certificate of Waiver
- Certificate effective
- November 6, 2025
- Certificate expiration
- November 5, 2027
- Status in the CMS file
- Active (termination code 00)
- Original participation date
- November 6, 2003
- Facility type
- Physician office
- Ownership (control type)
- Proprietary
- Lab classification
- CLIA laboratory
Source: CMS Provider of Services File, Clinical Laboratories (CLIA), as of October 16, 2026. Publisher page
Lab and contact
- CLIA number
- 05D1018990
- Lab name
- Robert J Wielenga MD
- Address
- 10835 New St, Downey, CA 90241
- Phone
- (562) 923-9100
- Fax
- (562) 923-9103
Annual test volume the lab reported
- Waived tests
- 960
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
Other labs in Downey, CA
- A Care Med GPCertificate of Waiver, Pharmacy05D2212490
- Alignment Healthcare CenterCertificate of Waiver, Physician office05D2091627
- Allsafe Medical GroupCertificate of Waiver, Physician office05D2016100
- Ame Medical Group IncCertificate of Waiver, Physician office05D2153545
- Ame Medical Group, IncCertificate of Waiver, Physician office05D2329708
- Ame Medical Group, Inc.Certificate of Waiver, Physician office05D2136148
- Brookshire Home TrainingCertificate of Waiver, End stage renal disease dialysis facility05D2260015
- Caremore Medical Group IncCertificate for Provider-Performed Microscopy Procedures, Physician office05D0552495
- Caremore Medical Group IncCertificate of Waiver, Physician office05D1050410
- Caremore Medical Group, IncCertificate of Waiver, Physician office05D2332648
Related
Questions
What is the CLIA number for Robert J Wielenga MD in Downey?
05D1018990, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does Robert J Wielenga MD hold?
A Certificate of Waiver, according to the CMS file.
When does CLIA 05D1018990 expire?
The CMS file lists November 5, 2027 as the certificate expiration date; the certificate took effect November 6, 2025.