Jason Duwayne Townzen, DO
Emergency Medicine Physician · Lacey, WA
Jason Duwayne Townzen, DO is an emergency medicine physician with a practice address in Lacey, Washington, and NPI 1811370281, issued on Jul 3, 2015. Check the license (Washington OP60913630, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Jason Duwayne Townzen
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- OP60913630 WA
Self-reported in NPPES; status is on the state search - Practice location
- 2555 Marvin RD NE, Lacey, WA 98516
- Phone
- (360) 493-4450
- Enumerated
- Jul 3, 2015
- Record last updated
- Nov 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190813003055); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,459 in Washington → Look up another NPI →
Also registered at 2555 Marvin RD NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chiante Amato, D.OFamily Medicine Physician1245545854
- Hillary BrodinCommunity Health Worker1063913242
- Jessica Cassady, FNP-BCFamily Nurse Practitioner1811326242
- Man Wah Mackie Chan, MDFamily Medicine Physician1598408742
- Emily Clay, M.D.Family Medicine Physician1700887361
- Meghan Duffie, M.D.Family Medicine Physician1649487182
Verify Jason Duwayne Townzen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license OP60913630Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% more Medicare Part D claims than the average emergency medicine physician in 2024
422 Medicare Part D claims for 300 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Cephalexin56 claims
- Amoxicillin-Clavulanate Potass48 claims
- Sulfamethoxazole-Trimethoprim29 claims
- Azithromycin23 claims
- Albuterol Sulfate Hfa21 claims
- Prednisone21 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.
Bills Medicare through one group practice
- Providence Health And Services WashingtonLacey, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jason Duwayne Townzen among 1,459 emergency medicine physician records in Washington
Jason Duwayne Townzen, DO is one of 1,459 emergency medicine physician records with a practice address in Washington. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 78% of them.
- NPI issued2015 · 78% of these records are older, 19% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2016 · median 2010 among the 851 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Washington
There are 1,459 emergency medicine physician records in Washington.
All 1,459 in Washington → Every provider in Lacey → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Joshua Sahara, MDOlympia, WA 985161073777876
- David Jester, D.O.Aberdeen, WA 985201013957182
- Nicholas Koch, M.D.Aberdeen, WA 985201912326836
- Amy Larson, M.D.Tumwater, WA 985121043356819
- Bessie McCann, MDAberdeen, WA 985201770701963
- Robert McCauley, MDAberdeen, WA 985201811937444
- David Melville, MDAberdeen, WA 985201245270339
- Ravikumar Singh, MDAberdeen, WA 985201497877377
Common questions
What is Jason Duwayne Townzen, DO's NPI number?
Jason Duwayne Townzen, DO's National Provider Identifier (NPI) is 1811370281, issued on Jul 3, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Jason Duwayne Townzen, DO located?
The NPPES record lists a practice address at 2555 Marvin RD NE, Lacey, WA, 98516. Phone: (360) 493-4450. Providers update this record themselves, so call before visiting.
How can I verify Jason Duwayne Townzen, DO's license?
NPPES lists Washington license number OP60913630, 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 Jason Duwayne Townzen, DO prescribe under Medicare Part D?
In 2024, Jason Duwayne Townzen, DO had 422 Medicare Part D claims for 300 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.