NPPES file of Aug 9, 2026

Maria Victoria Cayabyab, D.O.

Obstetrics & Gynecology Physician · Mount Vernon, WA

Maria Victoria Cayabyab, D.O. is an obstetrics & gynecology physician with a practice address in Mount Vernon, Washington, and NPI 1508165804, issued on Mar 25, 2011. Check the license (Washington OP60947453, 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
1508165804
Name
Maria Victoria Cayabyab
Credential
D.O.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
OP60947453 WA
Self-reported in NPPES; status is on the state search
Practice location
1400 E Kincaid St, Mount Vernon, WA 98274
Phone
(360) 428-2575
Enumerated
Mar 25, 2011
Record last updated
Sep 28, 2023
Fax
(360) 428-6471
Medicare enrollment
Enrolled (PECOS I20190827004175); accepts Medicare assignment
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 1400 E Kincaid St

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

  1. Daniela Abreu, DOObstetrics & Gynecology Physician1770169260
  2. Sankar Alagugurusamy, MDGastroenterology Physician1093970576
  3. Aleisha Allen, PA-CSurgical Physician Assistant1700520087
  4. Marshall Anderson, MDOccupational Medicine Physician1417942038
  5. George Ang, MDEndocrinology, Diabetes & Metabolism Physician1396737326
  6. Melissa Ashby, MDFamily Medicine Physician1245226646

Verify Maria Victoria Cayabyab in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license OP60947453
    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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90% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

16 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Maria Cayabyab16
  2. Specialty average165

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.

Bills Medicare through one group practice

  1. Obhg Washington PCSilverdale, WA

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

Maria Victoria Cayabyab among 1,038 obstetrics & gynecology physician records in Washington

Maria Victoria Cayabyab, D.O. is one of 1,038 obstetrics & gynecology physician records with a practice address in Washington. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 69% of them.

  • NPI issued2011 · 69% of these records are older, 27% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2011 · median 2007 among the 582 with a school on file
  • Record last updated2023 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

18 obstetrics & gynecology physician records list a practice address in Mount Vernon

They are 18 of the 1,500 NPPES records with a practice address in Mount Vernon, and 1,038 obstetrics & gynecology physician records in Washington.

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Daniela Abreu, DOMount Vernon, WA 982741770169260
  2. Nichole Baruth, MDMount Vernon, WA 982741558897694
  3. Daniel Bynum, M.D.Mount Vernon, WA 982741871567792
  4. Melissa Chinn, DOMount Vernon, WA 982741336125343
  5. Kathryn Delbello, MDMount Vernon, WA 982741588220081
  6. Jan Delli-Bovi, MDMount Vernon, WA 982741457347585
  7. Trisha Halvorsen, MDMount Vernon, WA 982741245585959
  8. William Hinderstein, MDMount Vernon, WA 982741043207095

Common questions

What is Maria Victoria Cayabyab, D.O.'s NPI number?

Maria Victoria Cayabyab, D.O.'s National Provider Identifier (NPI) is 1508165804, issued on Mar 25, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Maria Victoria Cayabyab, D.O. located?

The NPPES record lists a practice address at 1400 E Kincaid St, Mount Vernon, WA, 98274. Phone: (360) 428-2575. Providers update this record themselves, so call before visiting.

How can I verify Maria Victoria Cayabyab, D.O.'s license?

NPPES lists Washington license number OP60947453, 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 Maria Victoria Cayabyab, D.O. prescribe under Medicare Part D?

In 2024, Maria Victoria Cayabyab, D.O. had 16 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.