Alexander Joseph Diaz, AGACNP-BC
Acute Care Nurse Practitioner · Seattle, WA
Alexander Joseph Diaz, AGACNP-BC is an acute care nurse practitioner with a practice address in Seattle, Washington, and NPI 1790439263, issued on Feb 3, 2022. Check the license (Washington AP61427907, as entered in NPPES) with the Washington board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Alexander Joseph Diaz
- Credential
- AGACNP-BC
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License numbers
- AP61427907 WA
RN60247719 WA
Self-reported in NPPES; status is on the state search - Practice location
- 925 Seneca St, Seattle, WA 98101
- Phone
- (206) 625-7373
- Enumerated
- Feb 3, 2022
- Record last updated
- Jul 25, 2025
- Medicaid ID
- 2258377 WA
- Medicare enrollment
- Enrolled (PECOS I20231006001104); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 283 in Washington → Look up another NPI →
Also registered at 925 Seneca St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jonathan Abe, MDInternal Medicine Physician1346090875
- Katherine Adler, MDInternal Medicine Physician1841418886
- Sanjhavi AgarwalStudent in an Organized Health Care Education/Training Program1902410053
- Jason Agtarap, MDStudent in an Organized Health Care Education/Training Program1194576181
- Shani AharonStudent in an Organized Health Care Education/Training Program1316526650
- Mohammad Ahmed, DOHospitalist Physician1063819381
Verify Alexander Joseph Diaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Washington board licenses this profession
Search for license AP61427907Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
59% fewer Medicare Part D claims than the average acute care nurse practitioner in 2024
242 Medicare Part D claims for 115 beneficiaries, against an average of 594 among the 13,133 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Metoprolol Succinate71 claims
- Pantoprazole Sodium24 claims
- Xarelto24 claims
- Sotalol16 claims
- Amiodarone Hcl15 claims
- Eliquis12 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 90.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $329.45
7 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 10,984 providers of this specialty with any payment received $647.94 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.
One hospital affiliation
- Virginia Mason Medical CenterSeattle, WA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Alexander Joseph Diaz among 283 acute care nurse practitioner records in Washington
Alexander Joseph Diaz, AGACNP-BC is one of 283 acute care nurse practitioner records with a practice address in Washington. 80% 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 72% of them.
- NPI issued2022 · 72% of these records are older, 18% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated2020 · median 2020 among the 207 with a school on file
- Record last updated2025 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Washington
There are 283 acute care nurse practitioner records in Washington.
All 283 in Washington → Every provider in Seattle → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Fabrizio Diana, ACNP-BCSeattle, WA 981011043614605
- Joseph Glahn, ARNPSeattle, WA 981011053976563
- Jennifer Hejtmanek, NPSeattle, WA 981011043610371
- Emily Lariviere, ARNPSeattle, WA 981011578023651
- Kember McGowan, ARNPSeattle, WA 981011619502879
- Westmoreland Melcer, NPSeattle, WA 981011346014917
- Adel Pena-McGrady, ARNP, CMSRN, CVRN-BCSeattle, WA 981011679179709
- Ninotchka Brydges, ARNPSeattle, WA 981041063509701
Common questions
What is Alexander Joseph Diaz, AGACNP-BC's NPI number?
Alexander Joseph Diaz, AGACNP-BC's National Provider Identifier (NPI) is 1790439263, issued on Feb 3, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Joseph Diaz, AGACNP-BC located?
The NPPES record lists a practice address at 925 Seneca St, Seattle, WA, 98101. Phone: (206) 625-7373. Providers update this record themselves, so call before visiting.
How can I verify Alexander Joseph Diaz, AGACNP-BC's license?
NPPES lists Washington license number AP61427907, as entered by the provider. Search the Washington board that licenses this profession; the NPPES record confirms identity only.
How much does Alexander Joseph Diaz, AGACNP-BC prescribe under Medicare Part D?
In 2024, Alexander Joseph Diaz, AGACNP-BC had 242 Medicare Part D claims for 115 beneficiaries; the average among acute care nurse practitioner prescribers was 594. Part D covers Medicare prescriptions only.
What is Alexander Joseph Diaz, AGACNP-BC's MIPS final score?
The 2023 MIPS final score is 90.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.