SOUTHGATE MEDICAL CLINIC, P.S.
NPI 1285751990
Clinic/Center - Primary Care in Seattle, WA

Active since March 26, 2007CLIA 50D0934866 · Waiver
6044 MARTIN LUTHER KING JR WAY S STE 104, SEATTLE, WA 98118(206) 723-9853 Get Directions Write a Review

NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Southgate Medical Clinic, P.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

SOUTHGATE MEDICAL CLINIC, P.S. (NPI 1285751990) is a healthcare organization registered as a primary care in Seattle, Washington and active in the NPI registry since March 2007. The organization holds a CLIA Waiver certificate valid through April 4, 2028 and lists Robert Alfiler Velasco, Owner, as its authorized official.

NPPES Registry Identity

NPI1285751990
Entity TypeOrganization
Primary Taxonomy261QP2300X
Legal Business NameSOUTHGATE MEDICAL CLINIC, P.S.
Location Address6044 MARTIN LUTHER KING JR WAY S STE 104Seattle, WA 98118-3179
Mailing Address6044 Martin Luther King Jr Way S Ste 104Seattle, WA 98118-3179 · (206) 723-9853
Organization SubpartNo
Authorized OfficialRobert Alfiler VelascoOwner · (206) 723-9853
Enumeration DateMarch 26, 2007
Last NPPES UpdateAugust 22, 2020
✔ NPI 1285751990 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Primary CareAmbulatory Health Care Facilities
Taxonomy Code261QP2300X
6044 MARTIN LUTHER KING JR WAY S STE 104, Seattle, WA 98118

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Southgate Medical Clinic, P.s. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Southgate Medical Clinic, P.S., which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Family Practice
NPI 1548376791
6044 MARTIN LUTHER KING JR WAY S STE 104
Seattle, WA 98118
(206) 723-9853
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1710199427
800 5TH AVE STE 900
Seattle, WA 98104
(855) 229-6460
✔ PECOS✔ Accepts Medicare4.5 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 50D0934866

Southgate Medical Clinic Ps · Seattle, WA
Active · expires Apr 4, 2028
CLIA Number50D0934866
Laboratory TypePhysician Office
Certificate Effective DateAugust 4, 2002
Certificate Expiration DateApril 4, 2028
Laboratory DirectorRobert Velasco
Laboratory Phone(206) 723-9853
Laboratory LocationSouthgate Medical Clinic Ps6044 Martin Luther King Jr Way S Ste 104, Seattle, WA 98118
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory to perform only waived tests.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Southgate Medical Clinic, P.S.'s NPI number?

The NPI number for Southgate Medical Clinic, P.S. is 1285751990. It was assigned to this organization in the NPPES registry on March 26, 2007.

Where is Southgate Medical Clinic, P.S. located?

Southgate Medical Clinic, P.S. is located at 6044 Martin Luther King Jr Way S Ste 104, Seattle, WA 98118. The listed phone number is (206) 723-9853.

What is Southgate Medical Clinic, P.S.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Primary Care, with taxonomy code 261QP2300X.

Is Southgate Medical Clinic, P.S. enrolled in Medicare?

Yes. Southgate Medical Clinic, P.S. is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Southgate Medical Clinic, P.S.?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Southgate Medical Clinic, P.S., in Family Practice and Nurse Practitioner. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Southgate Medical Clinic, P.S. hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 50D0934866) is associated with this NPI, valid through April 4, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

What insurance does Southgate Medical Clinic, P.S. accept?

Health plans from Ambetter Health and Premera Blue Cross Blue Shield of Alaska list Southgate Medical Clinic, P.S. as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Southgate Medical Clinic, P.S. was last updated on August 22, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.