Stephen Chandler, MD
Medical Oncology Physician · Vancouver, WA
Stephen Chandler, MD is a medical oncology physician with a practice address in Vancouver, Washington, and NPI 1043437098, issued on Apr 19, 2007. Check the license (Washington MD00029452, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Stephen Chandler
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License numbers
- MD00029452 WA
MD07754 OR
Self-reported in NPPES; status is on the state search - Practice location
- 505 NE 87TH Ave Ste 320, Vancouver, WA 98664
- Phone
- (360) 214-2550
- Enumerated
- Apr 19, 2007
- Record last updated
- Jul 24, 2023
- Medicaid ID
- 2000464 WA
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 183 in Washington → Look up another NPI →
Also registered at 505 NE 87TH Ave Ste 320
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Bigler, M.DHematology (Internal Medicine) Physician1689777583
- Gary Cecchi, M.D.Hematology & Oncology Physician1861480857
- Siting Chen, MDHematology & Oncology Physician1689662587
- Aliakbar Dadla, M.D.Hematology & Oncology Physician1134474976
- Katerina Erokhina, D.O.Medical Oncology Physician1437404571
- Teresa Lord, MDHematology & Oncology Physician1598885550
Verify Stephen Chandler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00029452Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
72% fewer Medicare Part D claims than the average medical oncology physician in 2024
198 Medicare Part D claims for 71 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 25 claims were for opioids.
Most prescribed
- Anastrozole29 claims
- Oxycodone Hcl18 claims
- Abiraterone Acetate17 claims
- Prochlorperazine Maleate16 claims
- Tamoxifen Citrate16 claims
- Prednisone13 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.
Industry payments in 2024: $355.56
13 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 3,343 providers of this specialty with any payment received $11,773.47 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.
Stephen Chandler among 183 medical oncology physician records in Washington
Stephen Chandler, MD is one of 183 medical oncology physician records with a practice address in Washington. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 60% of them.
- NPI issued2007 · 60% of these records are older, 29% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileNo · 61% of these records are
- Record last updated2023 · 70% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in Washington
There are 183 medical oncology physician records in Washington.
All 183 in Washington → Every provider in Vancouver → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Katerina Erokhina, D.O.Vancouver, WA 986641437404571
- Gang Ye, MDVancouver, WA 986641245229137
- Marcus Braun, M.D.Vancouver, WA 986841235132309
- David Cosgrove, M.D.Vancouver, WA 986841861567562
- Willard Andes, MDLongview, WA 986321639215932
- Helen Goldberg, MDLongview, WA 986321790723666
- Jonathan Polikoff, MDLongview, WA 986321497822332
- Zafer Yildirim, MD,PHDLongview, WA 986321508858812
Common questions
What is Stephen Chandler, MD's NPI number?
Stephen Chandler, MD's National Provider Identifier (NPI) is 1043437098, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen Chandler, MD located?
The NPPES record lists a practice address at 505 NE 87TH Ave Ste 320, Vancouver, WA, 98664. Phone: (360) 214-2550. Providers update this record themselves, so call before visiting.
How can I verify Stephen Chandler, MD's license?
NPPES lists Washington license number MD00029452, 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 Stephen Chandler, MD prescribe under Medicare Part D?
In 2024, Stephen Chandler, MD had 198 Medicare Part D claims for 71 beneficiaries; the average among medical oncology physician prescribers was 703. 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.