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

John R Hiemstra, DO

Individual provider Family Medicine Physician · NPI 1639102502

John R Hiemstra, DO is registered under Family Practice in Lynden, Washington. Qualified in 2002, 24 years ago. Practices with Family Care Network, PLLC, a 124-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
24
Licensed in
WA
In the registry since
2006
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.

See every abbreviation used in this directory →

Practice location Address checks out

1610 Grover St Ste D1
Lynden, WA 98264-1539
Phone: (360) 354-1333
Fax: (360) 354-5399
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence OP00002028 (WA)

Record details

NPI number1639102502
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 7, 2006
Last updated in NPPESApril 27, 2026
Certification dateApril 27, 2026

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Family Care Network, Pllc — 124 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

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 patients489
Services billed 3,396 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Family Care Network, PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 124 clinicians in the practice; 12 are shown here.

Other providers in Lynden