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

Duncan Lahtinen, DO

Individual provider Family Medicine Physician · NPI 1407877491

Duncan Lahtinen, DO is registered under Family Practice in Spokane, Washington. Graduated from College of Osteo Med of the Pacific at Pomona in 1989, 37 years ago. Practices with Doctors Clinic of Spokane, a 9-clinician group and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
37
Trained at
College of Osteo Med of the Pacific at Pomona
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.

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Practice location Address checks out

220 E Rowan St Ste 300
Spokane, WA 99207
Phone: (509) 489-3554
Fax: (509) 489-3558
Show map & directions

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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 OP0001367 (WA)

Record details

NPI number1407877491
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 22, 2006
Last updated in NPPESFebruary 21, 2022
Certification dateFebruary 21, 2022

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolCOLLEGE OF OSTEO MED OF THE PACIFIC AT POMONA
Graduated 1989 (37 years in practice)
Group practice Doctors Clinic Of Spokane — 9 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of nail tissue 1–10 times
Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients283
Services billed 1,966 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

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 $4,165 220 payments · a meal or drink at a meeting or visit, not a fee
Gift $300 1 payment
Education $87 1 payment · educational material or training, 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
  • Providence Holy Family Hospital Hospital · Spokane, WA
  • Assured Home Health Home health agency · Spokane Valley, WA
  • Assured Home Health Home health agency · Spokane, WA
  • Centerwell Health Services Home health agency · Spokane, WA
  • Eden Home Health Home health agency · Spokane Valley, WA
  • Providence At Home With Compassus Home Health, Inwa Home health agency · Spokane Valley, WA

Colleagues at Doctors Clinic of Spokane

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

Other providers in Spokane