Curtis R. Maslen
Anesthesiology Physician · Renton, WA
Curtis R. Maslen is an anesthesiology physician with a practice address in Renton, Washington, and NPI 1780795088, issued on Aug 31, 2006. Check the license (Washington MD00023933, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Curtis R. Maslen
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- MD00023933 WA
Self-reported in NPPES; status is on the state search - Practice location
- 400 S 43RD St, Renton, WA 98055
- Phone
- (425) 353-3788
- Enumerated
- Aug 31, 2006
- Record last updated
- Nov 19, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (425) 353-8041
- Medicaid ID
- 8202434 WA
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,701 in Washington → Look up another NPI →
Also registered at 400 S 43RD St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Meghna Agarwal, MDHospitalist Physician1649859182
- Makeda Agonafer, M.D.Neurology Physician1215371935
- Jenny Alden, SLPSpeech-Language Pathologist1659691186
- Anjella Ysabel Alejo, PTPhysical Therapist1477378115
Verify Curtis R. Maslen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD00023933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Curtis R. Maslen among 1,701 anesthesiology physician records in Washington
Curtis R. Maslen is one of 1,701 anesthesiology physician records with a practice address in Washington. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 55% newer
- In a Medicare fileNo · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2007 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Anesthesiology Physician providers in Washington
There are 1,701 anesthesiology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 1,701 in Washington → Every provider in Renton → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Steven Bice, MDRenton, WA 980551184735516
- R Isner, MDRenton, WA 980551508977968
- Cara Lukin-Williams, MDRenton, WA 980551629182456
- Gregory Maurer, MDRenton, WA 980551851492375
- John Nardella, MDRenton, WA 980551417908591
- Manh Nguyen, MDRenton, WA 980551376654681
- Ichiro Otsu, MDRenton, WA 980551053422378
- Robert Paek, MDRenton, WA 980551457462780
Common questions
What is Curtis R. Maslen's NPI number?
Curtis R. Maslen's National Provider Identifier (NPI) is 1780795088, issued on Aug 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Curtis R. Maslen located?
The NPPES record lists a practice address at 400 S 43RD St, Renton, WA, 98055. Phone: (425) 353-3788. Providers update this record themselves, so call before visiting.
How can I verify Curtis R. Maslen's license?
NPPES lists Washington license number MD00023933, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.