Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Ryder P Gwinn, MD

Individual provider Neurological Surgery Physician · NPI 1700945607

Ryder P Gwinn, MD practises Neurosurgery in Seattle, Washington. Graduated from Un of California, Irvine, College of Medicine in 1996, 30 years ago. Practices with Overlake Medical Clinics LLC, a 426-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
30
Trained at
Un of California, Irvine, College of Medicine
Licensed in
WA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

801 Broadway Ste 901
Seattle, WA 98122-4396
Phone: (206) 386-3880
Fax: (206) 386-3882
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 550 17th Ave Ste 540, Seattle, WA 98122-4470 — (206) 320-4145

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence MD00043991 (WA)

Record details

NPI number1700945607
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 6, 2006
Last updated in NPPESMay 25, 2021
Certification dateMay 25, 2021

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNEUROSURGERY
Medical schoolUN OF CALIFORNIA, IRVINE, COLLEGE OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Overlake Medical Clinics Llc — 426 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Spinal fusion 52 times · 56th percentile
Laminectomy or laminotomy (partial removal of spine bones) 18 times · 46th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients131
Services billed 308 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Compensation for services other than consulting , including serving as faculty or as a speaker at a venue other than a continuing education program $5,850 6 payments
Food and Beverage $653 13 payments · a meal or drink at a meeting or visit, not a fee
Education $36 1 payment · educational material or training, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Overlake Medical Clinics LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 426 clinicians in the practice; 12 are shown here.

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