Marcella Theresia Mascher Denen, MD
Neonatal-Perinatal Medicine Physician · Seattle, WA
Marcella Theresia Mascher Denen, MD is a neonatal-perinatal medicine physician with a practice address in Seattle, Washington, and NPI 1003925827, issued on Aug 29, 2006. Check the license (Washington ML20008179, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Marcella Theresia Mascher Denen
- Credential
- MD
- Primary taxonomy
- Neonatal-Perinatal Medicine Physician 2080N0001X
- License number
- ML20008179 WA
Self-reported in NPPES; status is on the state search - Practice location
- 1959 NE Pacific St, Seattle, WA 98195
- Phone
- (206) 543-0065
- Enumerated
- Aug 29, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1959 NE Pacific St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Benjamin AaronsonPsychologist1497108880
- Laith Abandeh, MDPediatric Radiology Physician1609404243
- Rebecca AbayInternal Medicine Physician1528565520
- Gifti Abbo, MDStudent in an Organized Health Care Education/Training Program1316688989
- Nandini AbburiNeurology Physician1730618349
- Mohamed AbdelmotlebDiagnostic Radiology Physician1134892656
Verify Marcella Theresia Mascher Denen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license ML20008179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Neonatal-Perinatal Medicine Physician providers in Washington
There are 128 neonatal-perinatal medicine physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other neonatal-perinatal medicine physician records in Washington
- Somaya Abuelazm, MDSeattle, WA1912514688
- Prem Arora, M.D.Tacoma, WA1346426350
- Richard Badura, M.D.Seattle, WA1497792832
- Michael Barsotti, M.D.Spokane, WA1619930211
- Michelle BartlettSeattle, WA1760018741
- Maneesh Batra, MDSeattle, WA1366454407
- Andrew Beckstrom, MDSeattle, WA1902819733
- Sara Berkelhamer, MDSeattle, WA1972583169
- Zeenia Billimoria, M.D.Seattle, WA1265662191
- Carl Bodenstein, MDSpokane, WA1811960156
Common questions
What is Marcella Theresia Mascher Denen, MD's NPI number?
Marcella Theresia Mascher Denen, MD's National Provider Identifier (NPI) is 1003925827, issued on Aug 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marcella Theresia Mascher Denen, MD located?
The NPPES record lists a practice address at 1959 NE Pacific St, Seattle, WA, 98195. Phone: (206) 543-0065. Providers update this record themselves, so call before visiting.
How can I verify Marcella Theresia Mascher Denen, MD's license?
NPPES lists Washington license number ML20008179, 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.