NPPES file of Aug 9, 2026

Violeta Geanina Tregoning, DO

Pediatrics Physician · Aberdeen, WA

Violeta Geanina Tregoning, DO is a pediatrics physician with a practice address in Aberdeen, Washington, and NPI 1043714991, issued on Mar 23, 2018. Check the license (Washington OP61166168, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1043714991
Name
Violeta Geanina Tregoning
Credential
DO
Primary taxonomy
Pediatrics Physician 208000000X
License number
OP61166168 WA
Self-reported in NPPES; status is on the state search
Practice location
1813 Sumner Ave, Aberdeen, WA 98520
Phone
(360) 538-1293
Enumerated
Mar 23, 2018
Record last updated
Jul 21, 2026
Fax
(360) 538-3908
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1813 Sumner Ave

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

  1. Mark AndersonAddiction (Substance Use Disorder) Counselor1104329663
  2. Lisa CardozaMental Health Counselor1902291495
  3. Jenna DockterAddiction (Substance Use Disorder) Counselor1225477433
  4. Takeisha EwingFamily Nurse Practitioner1801473509
  5. Douglas FaustDental Hygienist1417353681
  6. Gilberto FernandezCounselor1619206711

Verify Violeta Geanina Tregoning in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP61166168
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

71% fewer Medicare Part D claims than the average pediatrics physician in 2024

107 Medicare Part D claims for 65 beneficiaries, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D. 18 claims were for opioids.

  1. Violeta Tregoning107
  2. Specialty average375

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.

Violeta Geanina Tregoning among 1,753 pediatrics physician records in Washington

Violeta Geanina Tregoning, DO is one of 1,753 pediatrics physician records with a practice address in Washington. 14% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 77% of them.

  • NPI issued2018 · 77% of these records are older, 20% newer
  • In a Medicare fileYes · 14% of these records are
  • In the CMS Doctors and Clinicians fileNo · 7% of these records are
  • Record last updated2026 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 pediatrics physician records list a practice address in Aberdeen

They are 9 of the 649 NPPES records with a practice address in Aberdeen, and 1,753 pediatrics physician records in Washington.

The 8 pediatrics physician records with the nearest ZIP codes

  1. Tiffany Hazel Blankenship, MDAberdeen, WA 985201316435118
  2. Carmen Briones, MDAberdeen, WA 985201700965753
  3. William Hutton, M.D.Aberdeen, WA 985201083721922
  4. Edgardo Magsalay, M.D.Aberdeen, WA 985201700852118
  5. Maria Martinez, D.O.Aberdeen, WA 985201518266170
  6. Hong Nguyen, D.O.Aberdeen, WA 985201023433521
  7. Tracy Russell, MDAberdeen, WA 985201629040894
  8. Kathryn Zeigler, M.D.Aberdeen, WA 985201215132386

Common questions

What is Violeta Geanina Tregoning, DO's NPI number?

Violeta Geanina Tregoning, DO's National Provider Identifier (NPI) is 1043714991, issued on Mar 23, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Violeta Geanina Tregoning, DO located?

The NPPES record lists a practice address at 1813 Sumner Ave, Aberdeen, WA, 98520. Phone: (360) 538-1293. Providers update this record themselves, so call before visiting.

How can I verify Violeta Geanina Tregoning, DO's license?

NPPES lists Washington license number OP61166168, 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.

How much does Violeta Geanina Tregoning, DO prescribe under Medicare Part D?

In 2024, Violeta Geanina Tregoning, DO had 107 Medicare Part D claims for 65 beneficiaries; the average among pediatrics physician prescribers was 375. 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.