CLIA lab
CLIA 21D0988836: Gateway Medical Center/Sisom Osia MD
Upper Marlboro, MD. Certificate and address details from the CMS Provider of Services file for clinical laboratories.
CLIA number 21D0988836 belongs to Gateway Medical Center/Sisom Osia MD in Upper Marlboro, MD.
Certificate of Waiver, effective July 10, 2025, expires July 9, 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
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Certificate
- Certificate type
- Certificate of Waiver
- Certificate effective
- July 10, 2025
- Certificate expiration
- July 9, 2027
- Status in the CMS file
- Active (termination code 00)
- Original participation date
- July 10, 2001
- 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
- 21D0988836
- Lab name
- Gateway Medical Center/Sisom Osia MD
- Address
- 9628 Marlbor Pike, Upper Marlboro, MD 20772
- Phone
- (301) 599-7010
- Fax
- (301) 599-7010
Annual test volume the lab reported
- Waived tests
- 40
Volumes are what the lab reported to CMS on its CMS-116 application, as carried in the file.
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- Children's National Pediatricians & Associates LLCCertificate of Waiver, Physician office21D0210181
- Dare To Care Too LLCCertificate of Waiver, Other practitioner21D2322429
- Dimensions Hlth Corp DBA CAP Region Medical CenterCertificate of Accreditation, Hospital21D0649650
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Related
Questions
What is the CLIA number for Gateway Medical Center/Sisom Osia MD in Upper Marlboro?
21D0988836, per the CMS Provider of Services file posted October 16, 2026.
What CLIA certificate does Gateway Medical Center/Sisom Osia MD hold?
A Certificate of Waiver, according to the CMS file.
When does CLIA 21D0988836 expire?
The CMS file lists July 9, 2027 as the certificate expiration date; the certificate took effect July 10, 2025.