Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Mr. Brent Joseph Landkammer, PMHNP-BC, ARNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1275535866

Mr. Brent Joseph Landkammer, PMHNP-BC, ARNP is a Nurse Practitioner in Kennewick, Washington. Qualified in 2018, 8 years ago. Practices with Columbia Basin Health Association, a 43-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
8
Licensed in
WA
In the registry since
2005
What do these letters mean?
PMHNP-BC — Psychiatric-Mental Health Nurse Practitioner, Board Certified
A board-certified psychiatric nurse practitioner.
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

See every abbreviation used in this directory →

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Practice location Address checks out

1030 N Center Pkwy Ste N197
Kennewick, WA 99336-7160
Phone: (509) 957-2130
Fax: (509) 957-2096
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 450 Thain Rd Ste F, Lewiston, ID 83501-5300 — (509) 957-2130

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence AP60966969 (WA)

Record details

NPI number1275535866
Entity typeIndividual (Type 1)
GenderMale
Credentials PMHNP-BC , ARNP
Sole proprietorYes
NPI enumeratedAugust 12, 2005
Last updated in NPPESJanuary 14, 2022
Certification dateJanuary 12, 2022

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2018 (8 years in practice)
Group practice Columbia Basin Health Association — 43 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 $41 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.

Colleagues at Columbia Basin Health Association

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 43 clinicians in the practice; 12 are shown here.

Other providers in Kennewick