NPPES file of Aug 9, 2026

Brian Wayne Greening, APRN, FNP-BC

Family Nurse Practitioner · Tamuning, GU

Brian Wayne Greening, APRN, FNP-BC is a family nurse practitioner with a practice address in Tamuning, Guam, and NPI 1922523463, issued on Aug 5, 2017. Check the license 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
1922523463
Name
Brian Wayne Greening
Credential
APRN, FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP134667 TX
Self-reported in NPPES; status is on the state search
Practice location
523 Chalan Pasaheru, Tamuning, GU 96913
Phone
(671) 645-5360
Enumerated
Aug 5, 2017
Record last updated
Apr 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(671) 649-3872
Medicare enrollment
Enrolled (PECOS I20240621000312); 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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Verify Brian Wayne Greening in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Guam board licenses this professionCheck 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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97% fewer Medicare Part D claims than the average family nurse practitioner in 2024

42 Medicare Part D claims, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Brian Greening42
  2. Specialty average1,305

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. Pacific Med And NephrologySinajana, GU

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

Brian Wayne Greening among 33 family nurse practitioner records in Guam

Brian Wayne Greening, APRN, FNP-BC is one of 33 family nurse practitioner records with a practice address in Guam. 52% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 27% of them.

  • NPI issued2017 · 27% of these records are older, 64% newer
  • In a Medicare fileYes · 52% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2017 · median 2017 among the 15 with a school on file
  • Record last updated2020 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

13 family nurse practitioner records list a practice address in Tamuning

They are 13 of the 411 NPPES records with a practice address in Tamuning, and 33 family nurse practitioner records in Guam.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Ashley ArteroTamuning, GU 969131427598366
  2. Arnie Lou Baker, NPTamuning, GU 969131487132973
  3. Alison Chong, FNPTamuning, GU 969131073111712
  4. Rhodora Cruz, APRN, FNP-CTamuning, GU 969131770051153
  5. Diane Hiatt, FNPTamuning, GU 969131013068485
  6. Lucy Marie Iona, FNPTamuning, GU 969131427499763
  7. Antoinette Kleiner, FNPMangilao, GU 969131588236624
  8. Margaret Mesa, NPTamuning, GU 969131629745377

Common questions

What is Brian Wayne Greening, APRN, FNP-BC's NPI number?

Brian Wayne Greening, APRN, FNP-BC's National Provider Identifier (NPI) is 1922523463, issued on Aug 5, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Brian Wayne Greening, APRN, FNP-BC located?

The NPPES record lists a practice address at 523 Chalan Pasaheru, Tamuning, GU, 96913. Phone: (671) 645-5360. Providers update this record themselves, so call before visiting.

How can I verify Brian Wayne Greening, APRN, FNP-BC's license?

Search the Guam board that licenses this profession; the NPPES record confirms identity only.

How much does Brian Wayne Greening, APRN, FNP-BC prescribe under Medicare Part D?

In 2024, Brian Wayne Greening, APRN, FNP-BC had 42 Medicare Part D claims; the average among family nurse practitioner prescribers was 1,305. 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.