NPPES file of Aug 9, 2026

Shion Shironishi

Psychiatric/Mental Health Nurse Practitioner · Tamuning, GU

Shion Shironishi is a psychiatric/mental health nurse practitioner with a practice address in Tamuning, Guam, and NPI 1417673393, issued on Oct 13, 2022. Check the license (Guam NP0252, as entered in NPPES) with the Guam board that licenses this profession; 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
1417673393
Name
Shion Shironishi
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
NP0252 GU
Self-reported in NPPES; status is on the state search
Practice location
388 Ypao RD, Tamuning, GU 96913
Phone
(671) 864-7666
Enumerated
Oct 13, 2022
Record last updated
Jan 9, 2023
Medicare enrollment
Enrolled (PECOS I20230214001656); accepts Medicare assignment
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 388 Ypao RD

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

  1. Arnie Lou Baker, NPFamily Nurse Practitioner1487132973
  2. Alison Chong, FNPFamily Nurse Practitioner1073111712
  3. Dae-Eil ChongPhysical Therapist1831474410
  4. Phyllis Collins, C.N.P.Nurse Practitioner1780629378
  5. Angeline David, DRPH, MHS, RDRegistered Dietitian1538586581
  6. Daniel Debardeleben, MDFamily Medicine Physician1598253379

Verify Shion Shironishi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Guam board licenses this profession
    Search for license NP0252
    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
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93% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

60 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.

  1. Shion Shironishi60
  2. Specialty average906

Most prescribed

  1. Quetiapine Fumarate16 claims
  2. Aripiprazole12 claims
  3. Sertraline Hcl12 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.

Bills Medicare through one group practice

  1. General Conference Corp OF SdaTamuning, GU

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

Psychiatric/Mental Health Nurse Practitioner providers in Guam

There are 4 psychiatric/mental health nurse practitioner records in Guam.

The 3 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Shantai McDermott, DNPTamuning, GU 969131093112898
  2. Leonora Urbano, PMHNPTamuning, GU 969131023451762
  3. Ria RiveraAgana Heights, GU 969101225728140

Common questions

What is Shion Shironishi's NPI number?

Shion Shironishi's National Provider Identifier (NPI) is 1417673393, issued on Oct 13, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Shion Shironishi located?

The NPPES record lists a practice address at 388 Ypao RD, Tamuning, GU, 96913. Phone: (671) 864-7666. Providers update this record themselves, so call before visiting.

How can I verify Shion Shironishi's license?

NPPES lists Guam license number NP0252, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.

How much does Shion Shironishi prescribe under Medicare Part D?

In 2024, Shion Shironishi had 60 Medicare Part D claims; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.