NPPES file of Aug 9, 2026

Shishin Miyagi, M.D

Family Medicine Physician · Tamuning, GU

Shishin Miyagi, M.D is a family medicine physician with a practice address in Tamuning, Guam, and NPI 1912226713, issued on May 19, 2010. Check the license (Guam M-1784, 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
1912226713
Name
Shishin Miyagi
Credential
M.D
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
M-1784 GU
Self-reported in NPPES; status is on the state search
Practice location
388 Ypao RD, Tamuning, GU 96913
Phone
(671) 646-8881
Enumerated
May 19, 2010
Record last updated
Jan 26, 2026
Fax
(671) 648-2548
Medicare enrollment
Enrolled (PECOS I20140103000561); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2013
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 Shishin Miyagi 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 M-1784
    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
Find the Guam 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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27% fewer Medicare Part D claims than the average family medicine physician in 2024

2,598 Medicare Part D claims for 162 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 54 claims were for opioids.

  1. Shishin Miyagi2,598
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium260 claims
  2. Amlodipine Besylate250 claims
  3. Losartan Potassium207 claims
  4. Lisinopril109 claims
  5. Metformin Hcl95 claims
  6. Metformin Hcl Er75 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).

Shishin Miyagi among 46 family medicine physician records in Guam

Shishin Miyagi, M.D is one of 46 family medicine physician records with a practice address in Guam. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 46% of them.

  • NPI issued2010 · 46% of these records are older, 50% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2013 · median 2007 among the 24 with a school on file
  • Record last updated2026 · 37% 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 Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

22 family medicine physician records list a practice address in Tamuning

They are 22 of the 411 NPPES records with a practice address in Tamuning, and 46 family medicine physician records in Guam.

The 8 family medicine physician records with the nearest ZIP codes

  1. Vincent Akimoto, MDUpper Tumon, GU 969131396871919
  2. Ugochukwu Akoma, M.D.Tamuning, GU 969131417157397
  3. Mary Beckett, MDTamuning, GU 969131669443024
  4. Jitka Lom, M.D.Tamuning, GU 969131790754679
  5. Gemma Mercado, M.D.Tamuning, GU 969131992844583
  6. Julie Namm, M.D.Tamuning, GU 969131740515030
  7. Hoa Nguyen, MDUpper Tumon, GU 969131215086152
  8. Luan Nguyen, M.D.Tamuning, GU 969131124331160

Common questions

What is Shishin Miyagi, M.D's NPI number?

Shishin Miyagi, M.D's National Provider Identifier (NPI) is 1912226713, issued on May 19, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Shishin Miyagi, M.D located?

The NPPES record lists a practice address at 388 Ypao RD, Tamuning, GU, 96913. Phone: (671) 646-8881. Providers update this record themselves, so call before visiting.

How can I verify Shishin Miyagi, M.D's license?

NPPES lists Guam license number M-1784, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.

How much does Shishin Miyagi, M.D prescribe under Medicare Part D?

In 2024, Shishin Miyagi, M.D had 2,598 Medicare Part D claims for 162 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.