Po-Shen Chang, M.D.
Family Medicine Physician · Longview, WA
Po-Shen Chang, M.D. is a family medicine physician with a practice address in Longview, Washington, and NPI 1609889062, issued on Aug 15, 2006. Check the license (Washington MD00034489, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Po-Shen Chang
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD00034489 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1230 7TH Ave, Longview, WA 98632
- Phone
- (360) 636-2400
- Enumerated
- Aug 15, 2006
- Record last updated
- Feb 4, 2022
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 1230 7TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sara Ardren, P.A.-C.Physician Assistant1992817225
- Paul Rhoniel Barbaza, M.D.Family Medicine Physician1972843787
- Jennifer Bard, MDFamily Medicine Physician1346348596
- Mackenzie BeckerDental Assistant1629866520
- Rebecca Becker, M.D.Internal Medicine Physician1881670768
- Shanna Behrendsen, D.A.Dental Assistant1669681284
Verify Po-Shen Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00034489Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.2 times the Medicare Part D claims of the average family medicine physician in 2024
11,460 Medicare Part D claims for 767 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 892 claims were for opioids.
Most prescribed
- Atorvastatin Calcium775 claims
- Lisinopril502 claims
- Losartan Potassium455 claims
- Amlodipine Besylate407 claims
- Hydrocodone-Acetaminophen347 claims
- Simvastatin346 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.
Po-Shen Chang among 5,534 family medicine physician records in Washington
Po-Shen Chang, M.D. 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 58% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- 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).
56 family medicine physician records list a practice address in Longview
They are 56 of the 1,933 NPPES records with a practice address in Longview, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Longview → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shawn Aaron, MDLongview, WA 986321578560710
- Michael Bartlett, MDLongview, WA 986321356348502
- John Boucher, M.D.Longview, WA 986321558374538
- Lance Brigman, M.D.Longview, WA 986321235131590
- Tresha Carroll, DOLongview, WA 986321932132552
- Gail Conway, DOLongview, WA 986321386669711
- James Crider, MDLongview, WA 986321669479689
- Marlene Dicristina, M.D.Longview, WA 986321558368597
Common questions
What is Po-Shen Chang, M.D.'s NPI number?
Po-Shen Chang, M.D.'s National Provider Identifier (NPI) is 1609889062, issued on Aug 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Po-Shen Chang, M.D. located?
The NPPES record lists a practice address at 1230 7TH Ave, Longview, WA, 98632. Phone: (360) 636-2400. Providers update this record themselves, so call before visiting.
How can I verify Po-Shen Chang, M.D.'s license?
NPPES lists Washington license number MD00034489, 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 Po-Shen Chang, M.D. prescribe under Medicare Part D?
In 2024, Po-Shen Chang, M.D. had 11,460 Medicare Part D claims for 767 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.