Thomas Oliver Marxen, D.D.S, M.S.D.
Prosthodontics · Woodinville, WA
Thomas Oliver Marxen, D.D.S, M.S.D. is a prosthodontics with a practice address in Woodinville, Washington, and NPI 1639249899, issued on Nov 8, 2006. Check the license (Washington 6009, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas Oliver Marxen
- Credential
- D.D.S, M.S.D.
- Primary taxonomy
- Prosthodontics 1223P0700X
- License number
- 6009 WA
Self-reported in NPPES; status is on the state search - Practice location
- 13515 NE 175TH St Ste B, Woodinville, WA 98072
- Phone
- (425) 483-2442
- Enumerated
- Nov 8, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (425) 485-0764
- Entity
- Type 1 · individual
8 nearest prosthodontics records → All 95 in Washington → Look up another NPI →
Also registered at 13515 NE 175TH St Ste B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sean Hwang, DDSPeriodontics1356902217
Verify Thomas Oliver Marxen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license 6009Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% more Medicare Part D claims than the average prosthodontics in 2024
111 Medicare Part D claims for 51 beneficiaries, against an average of 90 among the 1,779 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Cephalexin27 claims
- Dexamethasone20 claims
- Amoxicillin16 claims
- Hydrocodone-Acetaminophen15 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: $60.44
3 payments; by number, the most common kind was food and beverage; the largest payer was Dentsply Sirona Inc. The 1,408 providers of this specialty with any payment received $3,465.28 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.
Thomas Oliver Marxen among 95 prosthodontics records in Washington
Thomas Oliver Marxen, D.D.S, M.S.D. is one of 95 prosthodontics records with a practice address in Washington. 54% 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 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileYes · 54% of these records are
- In the CMS Doctors and Clinicians fileNo · 2% of these records are
- Record last updated2007 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0700X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Prosthodontics providers in Washington
There are 95 prosthodontics records in Washington.
All 95 in Washington → Every provider in Woodinville → Prosthodontics nationwide →
The 8 prosthodontics records with the nearest ZIP codes
- Timothy Butson, DMD, MSD, PLLCSeattle, WA 981011194865162
- Eunku Chung, D.D.S., M.S.D.Seattle, WA 981011659498111
- Roger Harper, DDS MSDSeattle, WA 981011689604092
- Pi-Yu Hsu, DDS, MSDSeattle, WA 981011275184459
- Thomas Junge, DDS,MSDSeattle, WA 981011427179068
- Takafumi Otani, DDS, PH.D, MSDSeattle, WA 981011063817054
- John Townsend, D.D.S.Seattle, WA 981011649438631
- Alexander Shor, DMD MSDSeattle, WA 981021700967544
Common questions
What is Thomas Oliver Marxen, D.D.S, M.S.D.'s NPI number?
Thomas Oliver Marxen, D.D.S, M.S.D.'s National Provider Identifier (NPI) is 1639249899, issued on Nov 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas Oliver Marxen, D.D.S, M.S.D. located?
The NPPES record lists a practice address at 13515 NE 175TH St Ste B, Woodinville, WA, 98072. Phone: (425) 483-2442. Providers update this record themselves, so call before visiting.
How can I verify Thomas Oliver Marxen, D.D.S, M.S.D.'s license?
NPPES lists Washington license number 6009, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Thomas Oliver Marxen, D.D.S, M.S.D. prescribe under Medicare Part D?
In 2024, Thomas Oliver Marxen, D.D.S, M.S.D. had 111 Medicare Part D claims for 51 beneficiaries; the average among prosthodontics prescribers was 90. 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.