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

Dr. Derek Samuel Weaver, DO

Individual provider Family Medicine Physician · NPI 1962660704

Dr. Derek Samuel Weaver, DO is registered under Family Practice in Sunnyside, Washington. Graduated from Michigan State University College of Osteopathic Medicine in 2007, 19 years ago. Practices with Derek S Weaver DO PLLC, a 7-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
19
Trained at
Michigan State University College of Osteopathic Medicine
Licensed in
WA
In the registry since
2008
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

2935 Allen Rd
Sunnyside, WA 98944-8931
Phone: (509) 837-0070
Fax: (509) 837-0690
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence OP60139736 (WA)

Record details

NPI number1962660704
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 29, 2008
Last updated in NPPESApril 15, 2026
Certification dateApril 15, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMICHIGAN STATE UNIVERSITY COLLEGE OF OSTEOPATHIC MEDICINE
Graduated 2007 (19 years in practice)
Group practice Derek S Weaver Do Pllc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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.

Food and Beverage $36 2 payments · a meal or drink at a meeting or visit, 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.

  • Prosser Memorial Hospital Hospital · Prosser, WA

Colleagues at Derek S Weaver DO PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Sunnyside