Michael John Koczarski, DDS
General Practice Dentistry · Woodinville, WA
Michael John Koczarski, DDS is a general practice dentistry with a practice address in Woodinville, Washington, and NPI 1104931369, issued on Aug 20, 2006. Check the license (Washington DE00006370, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael John Koczarski
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DE00006370 WA
Self-reported in NPPES; status is on the state search - Practice location
- 17000 140TH Ave NE, Woodinville, WA 98072
- Phone
- (425) 486-2200
- Enumerated
- Aug 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (425) 481-8561
- Entity
- Type 1 · individual
8 nearest general practice dentistry records → All 3,196 in Washington → Look up another NPI →
Also registered at 17000 140TH Ave NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Whitney Anderson, MDPediatrics Physician1568547735
- Emlyn Baker, ARNPRegistered Nurse1801971064
- David Baus, PTPhysical Therapist1023133840
- Marie Bilger, MDPediatrics Physician1134204399
- Barbara Cummings, MDPediatrics Physician1740365998
- Grace Dy, MDEmergency Medicine Physician1295792109
Verify Michael John Koczarski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license DE00006370Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average general practice dentistry in 2024
61 Medicare Part D claims for 46 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin47 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.
Michael John Koczarski among 3,196 general practice dentistry records in Washington
Michael John Koczarski, DDS is one of 3,196 general practice dentistry records with a practice address in Washington. 57% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 59% newer
- In a Medicare fileYes · 57% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2007 · 72% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223G0001X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
17 general practice dentistry records list a practice address in Woodinville
They are 17 of the 548 NPPES records with a practice address in Woodinville, and 3,196 general practice dentistry records in Washington.
All 3,196 in Washington → Every provider in Woodinville → General Practice Dentistry nationwide →
The 8 general practice dentistry records with the nearest ZIP codes
- Jing-Chu Cao, DDSWoodinville, WA 980721154855245
- Lynn Cheney, DDSWoodinville, WA 980721700884962
- Emily ChowWoodinville, WA 980721902359409
- Juliette Dennis, DDSWoodinville, WA 980721558854455
- Cristin Dowd, DDSWoodinville, WA 980721316027840
- Daryl Eckland, D.D.S.Woodinville, WA 980721770583825
- Keagan Eckland, D.D.S.Woodinville, WA 980721164622320
- Yogesh Goel, DMDWoodinville, WA 980721689800096
Common questions
What is Michael John Koczarski, DDS's NPI number?
Michael John Koczarski, DDS's National Provider Identifier (NPI) is 1104931369, issued on Aug 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Michael John Koczarski, DDS located?
The NPPES record lists a practice address at 17000 140TH Ave NE, Woodinville, WA, 98072. Phone: (425) 486-2200. Providers update this record themselves, so call before visiting.
How can I verify Michael John Koczarski, DDS's license?
NPPES lists Washington license number DE00006370, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Michael John Koczarski, DDS prescribe under Medicare Part D?
In 2024, Michael John Koczarski, DDS had 61 Medicare Part D claims for 46 beneficiaries; the average among general practice dentistry prescribers was 83. 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.