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

Gregory Doornink, DO

Individual provider Physical Medicine & Rehabilitation Physician · NPI 1598343436

Gregory Doornink, DO is registered under Physical Medicine and Rehabilitation in Spokane, Washington. Graduated from Pacific NW Un of Hs, Col of Osteopathic Medicine in 2021, 5 years ago. Practices with Michael Decker DO, Inc, a 23-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
5
Trained at
Pacific NW Un of Hs, Col of Osteopathic Medicine
Licensed in
WA
In the registry since
2021
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

715 S Cowley St Ste 228
Spokane, WA 99202-1383
Phone: (509) 473-6706
Fax: (509) 626-9917
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Medicine & Rehabilitation Physician (primary) Taxonomy 208100000X · Licence OP61434610 (WA)

Record details

NPI number1598343436
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedMarch 31, 2021
Last updated in NPPESJune 29, 2025
Certification dateJune 29, 2025

Medicare enrollment

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

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolPACIFIC NW UN OF HS, COL OF OSTEOPATHIC MEDICINE
Graduated 2021 (5 years in practice)
Group practice Michael Decker Do, Inc. — 23 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 $20 1 payment · 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.

  • Prov Sacred Hrt Med Ctr & Childs Hosp. Hospital · Spokane, WA

Colleagues at Michael Decker DO, Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 23 clinicians in the practice; 12 are shown here.

Other providers in Spokane