Matthew Siow, MD, MBA
Orthopedic Surgery · Los Angeles, CA
At a glance
6801 Park Ter # 140400, Los Angeles, CA 90045-1543
Published activity: Lower limb (leg) arthroscopy (minimally invasive joint repair) · Removal of tissue. View counts and coverage
NPPES record updated Jul 22, 2024. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
6801 Park Ter # 140400Los Angeles, CA 90045-1543
Additional reported practice locations
200 W Arbor DrSan Diego, CA 921039000
Phone: 6195436222
Education & affiliations
- Medical / professional school
- New York University School Of Medicine
- Graduation year
- 2018
- CMS specialties
- Orthopedic Surgery · Sports Medicine
Practice groups
Reported hospital affiliations
- Grossmont Hospital La Mesa, CA
- Scripps Memorial Hospital - Encinitas Encinitas, CA
- Sharp Coronado Hospital And Hlthcr Ctr Coronado, CA
- Tri-City Medical Center Oceanside, CA
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Lower limb (leg) arthroscopy (minimally invasive joint repair) | 1-10 |
| Removal of tissue | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Service-mix comparison is unavailable for this NPI in the imported Medicare service file.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $3,712.99 |
| Travel and lodging | $3,458.29 |
| Grant | $2,916.67 |
| Gift | $23.85 |
Reporting companies
| Company | Amount |
|---|---|
| SMITH+NEPHEW, INC. | $6,936.72 |
| STRYKER CORPORATION | $2,416.51 |
| SHOULDER INNOVATIONS, INC. | $522.47 |
| DEPUY SYNTHES SALES INC. | $139.83 |
| ELEVATE SURGICAL CO | $96.27 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Orthopedic Surgery
- Taxonomy code
- 207X00000X
- Enumeration date
- Jul 3, 2018
- Record updated
- Jul 22, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD, MBA
Reported taxonomies and licenses
390200000X
207X00000X · Primary
License reported: A164959 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
6801 Park Ter # 140400Los Angeles, CA 90045-1543
- Phone
- (310) 665-7200
Mailing address
6865 E GEORGETOWN CIRANAHEIM, CA 928075107
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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