Hector Diaz-Otero, MD
Family Medicine Physician · Marysville, WA
Hector Diaz-Otero, MD is a family medicine physician with a practice address in Marysville, Washington, and NPI 1508500810, issued on Apr 22, 2022. Check the license (Washington MD70027777, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Hector Diaz-Otero
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD70027777 WA
Self-reported in NPPES; status is on the state search - Practice location
- 9710 State Ave, Marysville, WA 98270
- Phone
- (606) 531-7423
- Enumerated
- Apr 22, 2022
- Record last updated
- Jul 31, 2025
- Fax
- (360) 657-3095
- Medicare enrollment
- Enrolled (PECOS I20230221001515); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 5,534 in Washington → Look up another NPI →
Also registered at 9710 State Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ruveyda AlbayrakStudent in an Organized Health Care Education/Training Program1669393260
- Hernan Alvarado Orellana, MDStudent in an Organized Health Care Education/Training Program1518895135
- Sandra Aramburu, BS, RDNutrition Education Nutritionist1700913423
- Carlos Aristeguieta, M.D., M.P.H.Family Medicine Physician1578905972
- Adama Barry, ARNPFamily Nurse Practitioner1518839141
- Martha Carriere, BA, RCCounselor1083749980
Verify Hector Diaz-Otero in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD70027777Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average family medicine physician in 2024
332 Medicare Part D claims for 55 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium40 claims
- Metoprolol Succinate23 claims
- Lisinopril19 claims
- Losartan Potassium15 claims
- Pantoprazole Sodium15 claims
- Sertraline Hcl15 claims
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.
Industry payments in 2024: $14.31
1 payment: food and beverage; the largest payer was Dexcom, Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sea Mar Community Health CentersEverett, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Hector Diaz-Otero among 5,534 family medicine physician records in Washington
Hector Diaz-Otero, MD is one of 5,534 family medicine physician records with a practice address in Washington. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.
- NPI issued2022 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2021 · median 2009 among the 3,294 with a school on file
- Record last updated2025 · 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 207Q00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
42 family medicine physician records list a practice address in Marysville
They are 42 of the 874 NPPES records with a practice address in Marysville, and 5,534 family medicine physician records in Washington.
All 5,534 in Washington → Every provider in Marysville → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Christopher Beard, MDMarysville, WA 982701144296575
- Barron Brown, MDMarysville, WA 982701922055300
- Kavitha Chunchu, MDMarysville, WA 982701770595019
- Harold Clark, MDMarysville, WA 982701831194745
- Rachel Dawson, MDMarysville, WA 982701356363162
- Evangeline Erskine, MDMarysville, WA 982701801948039
- Susana Escobar, MDMarysville, WA 982701891896262
- Suzanne Fiala, MDMarysville, WA 982701841373818
Common questions
What is Hector Diaz-Otero, MD's NPI number?
Hector Diaz-Otero, MD's National Provider Identifier (NPI) is 1508500810, issued on Apr 22, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Hector Diaz-Otero, MD located?
The NPPES record lists a practice address at 9710 State Ave, Marysville, WA, 98270. Phone: (606) 531-7423. Providers update this record themselves, so call before visiting.
How can I verify Hector Diaz-Otero, MD's license?
NPPES lists Washington license number MD70027777, 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 Hector Diaz-Otero, MD prescribe under Medicare Part D?
In 2024, Hector Diaz-Otero, MD had 332 Medicare Part D claims for 55 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.