Mark W. Lahtinen, DO
Family Medicine Physician · Spokane, WA
Mark W. Lahtinen, DO is a family medicine physician with a practice address in Spokane, Washington, and NPI 1285291740, issued on May 21, 2019. Check the license (Washington OP61086567, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Mark W. Lahtinen
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- OP61086567 WA
Self-reported in NPPES; status is on the state search - Practice location
- 220 E Rowan Ave Ste 300, Spokane, WA 99207
- Phone
- (509) 498-3554
- Enumerated
- May 21, 2019
- Record last updated
- Jul 1, 2022
- Fax
- (509) 489-3558
- Medicare enrollment
- Enrolled (PECOS I20220928002169); accepts Medicare assignment
- Medical or professional school
- Rocky Vista University College Of Osteopathic Med, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 220 E Rowan Ave Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Bayless, ARNPFamily Nurse Practitioner1306555826
- Katherine Blume, ARNPFamily Nurse Practitioner1497562052
- Dusan Dordevic, ARNPFamily Nurse Practitioner1477364636
- Leigh Gilliver, PAMedical Physician Assistant1588012538
- Brian HaberbushFamily Nurse Practitioner1861727356
- Kristin Pope, ARNPFamily Nurse Practitioner1174416044
Verify Mark W. Lahtinen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP61086567Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
78% more Medicare Part D claims than the average family medicine physician in 2024
6,306 Medicare Part D claims for 502 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 465 claims were for opioids.
Most prescribed
- Atorvastatin Calcium261 claims
- Hydrocodone-Acetaminophen239 claims
- Levothyroxine Sodium195 claims
- Lisinopril194 claims
- Losartan Potassium191 claims
- Albuterol Sulfate Hfa155 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $3,057.45
153 payments; by number, the most common kind was food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Doctors Clinic OF SpokaneSpokane, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark W. Lahtinen among 5,534 family medicine physician records in Washington
Mark W. Lahtinen, DO is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 85% of them.
- NPI issued2019 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2019 · median 2009 among the 3,294 with a school on file
- Record last updated2022 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
283 family medicine physician records list a practice address in Spokane
They are 283 of the 14,049 NPPES records with a practice address in Spokane, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Spokane → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Philip Henry, DOSpokane, WA 992071023097946
- Duncan Lahtinen, DOSpokane, WA 992071407877491
- Sun Lee, MDSpokane, WA 992071770552986
- Adam Newborn, DOSpokane, WA 992071295297521
- Paul Piper, MDSpokane, WA 992071336160316
- Heather Quinn, MDSpokane, WA 992071386698744
- Olivia RedlineSpokane, WA 992071760838544
- Matthew Roberts, ARNPSpokane, WA 992071942903141
Common questions
What is Mark W. Lahtinen, DO's NPI number?
Mark W. Lahtinen, DO's National Provider Identifier (NPI) is 1285291740, issued on May 21, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Mark W. Lahtinen, DO located?
The NPPES record lists a practice address at 220 E Rowan Ave Ste 300, Spokane, WA, 99207. Phone: (509) 498-3554. Providers update this record themselves, so call before visiting.
How can I verify Mark W. Lahtinen, DO's license?
NPPES lists Washington license number OP61086567, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark W. Lahtinen, DO prescribe under Medicare Part D?
In 2024, Mark W. Lahtinen, DO had 6,306 Medicare Part D claims for 502 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mark W. Lahtinen, DO's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.