NPPES file of Aug 9, 2026

Janet Marie Trowbridge, M.D., PH.D.

Dermatology Physician · Longview, WA

Janet Marie Trowbridge, M.D., PH.D. is a dermatology physician with a practice address in Longview, Washington, and NPI 1912017914, issued on Aug 30, 2006. Check the license (Washington MD00047047, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1912017914
Name
Janet Marie Trowbridge
Credential
M.D., PH.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
MD00047047 WA
Self-reported in NPPES; status is on the state search
Practice location
1615 Delaware St, Longview, WA 98632
Phone
(360) 501-3547
Enumerated
Aug 30, 2006
Record last updated
Jul 6, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(360) 578-3355
Medicare enrollment
Enrolled (PECOS I20070511000274); accepts Medicare assignment
Medical or professional school
New York University School Of Medicine, 1999
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1615 Delaware St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Shawn Aaron, MDFamily Medicine Physician1578560710
  2. Basim Ali, M.B.B.SGastroenterology Physician1467081521
  3. Pamela AlwineNurse's Aide1780120089
  4. Lance Amols, M.D.Psychiatry Physician1780978304
  5. Brock Amos, CRNACertified Registered Nurse Anesthetist1295807717
  6. Kurt Anderson, PHARMDGeriatric Pharmacist1790231280

Verify Janet Marie Trowbridge in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00047047
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Providence Health And Services- WashingtonMukilteo, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Janet Marie Trowbridge among 384 dermatology physician records in Washington

Janet Marie Trowbridge, M.D., PH.D. is one of 384 dermatology physician records with a practice address in Washington. 82% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 55% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1999 · median 2009 among the 275 with a school on file
  • Record last updated2020 · 56% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Washington

There are 384 dermatology physician records in Washington.

The 8 dermatology physician records with the nearest ZIP codes

  1. Rebecca Foreman, M.D.Longview, WA 986321962639831
  2. Michael Fong, D.O.Camas, WA 986071437512894
  3. Susan Orchard, M.D.Camas, WA 986071215919386
  4. Henrik Martens, MDVancouver, WA 986601922253319
  5. Joel Datloff, MDVancouver, WA 986641477581817
  6. Elizabeth Dawson, MDVancouver, WA 986641760676910
  7. Theresa Mah, DOVancouver, WA 986641700991148
  8. Karen Vigeland, MDVancouver, WA 986641306874748

Common questions

What is Janet Marie Trowbridge, M.D., PH.D.'s NPI number?

Janet Marie Trowbridge, M.D., PH.D.'s National Provider Identifier (NPI) is 1912017914, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Janet Marie Trowbridge, M.D., PH.D. located?

The NPPES record lists a practice address at 1615 Delaware St, Longview, WA, 98632. Phone: (360) 501-3547. Providers update this record themselves, so call before visiting.

How can I verify Janet Marie Trowbridge, M.D., PH.D.'s license?

NPPES lists Washington license number MD00047047, 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. 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.