NPPES file of Aug 9, 2026

Dawn Dee Ostberg, FNP-BC

Nurse Practitioner · Dededo, GU

Dawn Dee Ostberg, FNP-BC is a nurse practitioner with a practice address in Dededo, Guam, and NPI 1376143560, issued on Oct 28, 2020. Check the license (Guam NP0222, 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
1376143560
Name
Dawn Dee Ostberg
Credential
FNP-BC
Primary taxonomy
Nurse Practitioner 363L00000X
License numbers
NP0222 GU
20NP03 GU
Self-reported in NPPES; status is on the state search
Practice location
655 Harmon Loop RD Ste 108, Dededo, GU 96929
Phone
(671) 633-4404
Enumerated
Oct 28, 2020
Record last updated
Apr 8, 2025
Fax
(671) 633-4452
Medicare enrollment
Enrolled (PECOS I20220506000845); 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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Also registered at 655 Harmon Loop RD Ste 108

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

  1. Arania Adolphson, MDFamily Medicine Physician1922023654
  2. Joleen Baza, LPCProfessional Counselor1932739919
  3. Trang Bui, PHARMDPharmacist1760123004
  4. Felix Cabrera, M.D.Hospitalist Physician1164697546
  5. Luis Cruz, M.D.Sports Medicine (Family Medicine) Physician1568649606
  6. Paul DalmacioPharmacist1376198317

Verify Dawn Dee Ostberg 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 NP0222
    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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97% fewer Medicare Part D claims than the average nurse practitioner in 2024

33 Medicare Part D claims for 24 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Dawn Ostberg33
  2. Specialty average1,109

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 2 group practices

  1. Guam Healthcare Development IncorporatedDededo, GU
  2. Takecare Insurance Company IncTamuning, GU

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

7 nurse practitioner records list a practice address in Dededo

They are 7 of the 139 NPPES records with a practice address in Dededo, and 9 nurse practitioner records in Guam.

Other nurse practitioner records in Guam

  1. Phyllis Collins, C.N.P.Tamuning, GU1780629378
  2. Emiliza Cornejo, RN, APRNDededo, GU1306387691
  3. Teofila Maria Cruz, MSN, APRN, FNP-CDededo, GU1548500291
  4. Ann Keenan, AGNP, CCRNDededo, GU1669211405
  5. Kyoungmee Kim, N.P.Dededo, GU1861760654
  6. Lena Leishman, NP-C, RN, BSNDededo, GU1487195053
  7. Elena Taneva-Cholakova, FNP-BCTamuning, GU1417628306
  8. Roseanne Marie Williams, FNP-BCDededo, GU1992634836

Common questions

What is Dawn Dee Ostberg, FNP-BC's NPI number?

Dawn Dee Ostberg, FNP-BC's National Provider Identifier (NPI) is 1376143560, issued on Oct 28, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Dawn Dee Ostberg, FNP-BC located?

The NPPES record lists a practice address at 655 Harmon Loop RD Ste 108, Dededo, GU, 96929. Phone: (671) 633-4404. Providers update this record themselves, so call before visiting.

How can I verify Dawn Dee Ostberg, FNP-BC's license?

NPPES lists Guam license number NP0222, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.

How much does Dawn Dee Ostberg, FNP-BC prescribe under Medicare Part D?

In 2024, Dawn Dee Ostberg, FNP-BC had 33 Medicare Part D claims for 24 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.