Quick answers
- Does Hendrik S. Kok Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Hendrik S. Kok Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Hendrik S. Kok Iii see?
- In 2024, CMS data shows 170 Original Medicare patients and 392 services for Hendrik S. Kok Iii. This counts Original Medicare only and measures volume, not quality.
- What is Hendrik S. Kok Iii's NPI number?
- 1235321183. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Hendrik S. Kok Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 170 |
|---|---|
| Services billed to Medicare | 392 |
| Different services or procedures | 55 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Partial removal of spine bone with release of lower spinal cord and/or nerves, 1 segment (63047)70 services
- Insertion of cage or mesh device to spine bone and disc space during spine fusion (22853)37 services
- Fusion of additional segment of spine (22614)33 services
- Partial removal of spine bone with release of spinal cord and/or nerves, each additional segment (63048)31 services
- Fusion of spine in lower back (22612)24 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- Arthritis75%
- High blood pressure71%
- High cholesterol64%
- Anxiety28%
- Depression26%
- Diabetes24%
Hospitals where Hendrik S. Kok Iii works
Medicare's Facility Affiliation Data lists Hendrik S. Kok Iii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- PeaceHealth St Joseph Medical CenterBellingham, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 500030
Practice locations
Addresses where Hendrik S. Kok Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 710 Birchwood Ave, Suite 101Bellingham, WA 98225 (360) 676‑0922
Group practices
Medicare enrollment lists Hendrik S. Kok Iii as a member of this group (CMS data updated October 2, 2026).
- Fourth Corner Neurosurgical Associates Inc PS9 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Bellingham
Clinicians with the same Medicare primary specialty in Bellingham, WA — not a recommendation.
Other clinicians in Fourth Corner Neurosurgical Associates Inc PS
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| School | Arizona College Of Osteopathic Medicine Mid Western University |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235321183 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians