Guam Medicare prescriber rankings
178 Guam prescribers billed $9.5 million in Medicare Part D drugs in 2024, the 54th largest of 56 states and territories. Opioids were 1.39 of every 100 of those claims (CMS), below the national 3.52.
- Prescribers178
- Part D drug cost$9.5 million
- Average per prescriber$53,169
- Wrote an opioid (CMS)80 (47.9%)
- Opioid claims per 100 claims (CMS)1.39
Reading the Guam tables
Guam's 178 prescribers wrote 105,248 Part D claims in 2024, about $53,169 in drug cost per prescriber. A high total usually reflects specialty practice, such as cancer, rheumatology or HIV care, or vaccines: 2 of the 50 largest totals are mostly vaccines, which pharmacies often bill under a standing order naming one clinician. These are billing tables, not quality ratings. PlainDoctor does not rank named prescribers by opioid share; the state's opioid figures above come from CMS's own totals.
The 50 highest Part D drug-cost totals
| Prescriber (NPPES taxonomy) | Drug cost | Claims |
|---|---|---|
| 1Dennis BeckworthMedical Oncology Physician | $1.0 million | 194 |
| 2Beatrice PretiHematology & Oncology Physician | $874,708 | 525 |
| 3James NozakiFamily Medicine Physician | $713,738 | 10,784 |
| 4Samir AmbraleHematology & Oncology Physician | $573,267 | 96 |
| 5Erika AlfordEndocrinology, Diabetes & Metabolism Physician | $432,557 | 2,704 |
| 6George MacrisInternal Medicine Physician | $405,239 | 7,578 |
| 7Danny McClurePsychiatry Physician | $292,652 | 896 |
| 8Faraz OuhadiSpecialist | $287,027 | 5,002 |
| 9Yoichi InabaInterventional Cardiology Physician | $236,539 | 800 |
| 10Joel Marc RubioEndocrinology, Diabetes & Metabolism Physician | $233,874 | 1,016 |
| 11Samuel FriedmanHematology & Oncology Physician | $223,974 | 1,009 |
| 12Karlene DrummerFamily Medicine Physician | $222,971 | 5,758 |
| 13Johnny LimInternal Medicine Physician | $210,111 | 4,147 |
| 14John TaitanoInternal Medicine Physician | $201,497 | 3,722 |
| 15Amylie RojasFamily Medicine Physician | $190,640 | 2,244 |
| 16Jonathon ThorpInternal Medicine Physicianmostly vaccines, often billed by pharmacies under a standing order naming this clinician | $186,389 | 2,649 |
| 17Doris LimInternal Medicine Physician | $178,312 | 2,812 |
| 18Edwin SupitInternal Medicine Physician | $160,475 | 2,490 |
| 19Ramsey ChichakliUrology Physician | $156,110 | 1,369 |
| 20Peter Kh GoSurgery Physician | $151,608 | 3,382 |
| 21Hoa NguyenFamily Medicine Physician | $133,173 | 3,163 |
| 22Emiliza CornejoNurse Practitioner | $117,697 | 1,696 |
| 23Dennise SalazarPhysician Assistant | $116,783 | 870 |
| 24Hieu CampusFamily Medicine Physician | $115,273 | 2,479 |
| 25Leopoldo ArcillaInternal Medicine Physician | $107,365 | 2,856 |
| 26Young ChangInternal Medicine Physician | $87,750 | 2,666 |
| 27Alix ChenetInternal Medicine Physician | $84,590 | 2,212 |
| 28Florencio LizamaInternal Medicine Physician | $78,099 | 982 |
| 29Michael AgustinPulmonary Disease Physician | $68,155 | 222 |
| 30Marvin NogoyFamily Nurse Practitioner | $67,329 | 186 |
| 31Ugochukwu AkomaFamily Medicine Physician | $63,895 | 433 |
| 32Vincent DuenasInternal Medicine Physician | $61,927 | 1,628 |
| 33Lisa FloresSports Medicine (Neuromusculoskeletal Medicine) Physician | $60,517 | 1,589 |
| 34Daniel DebardelebenFamily Medicine Physician | $56,800 | 935 |
| 35Edmund SchroederGeriatric Medicine (Family Medicine) Physician | $52,595 | 1,162 |
| 36Carla HaddockFamily Nurse Practitioner | $50,527 | 457 |
| 37Rhodora CruzFamily Nurse Practitioner | $50,280 | 311 |
| 38Ricardo TerlajeFamily Medicine Physician | $42,049 | 845 |
| 39Ramel CarlosNeurology Physician | $41,005 | 1,135 |
| 40Delores LeeFamily Medicine Physician | $40,344 | 668 |
| 41Ashley ArteroFamily Nurse Practitioner | $39,291 | 56 |
| 42Gregory WarnerPharmacistmostly vaccines, often billed by pharmacies under a standing order naming this clinician | $38,661 | 177 |
| 43Vincent AkimotoFamily Medicine Physician | $38,430 | 763 |
| 44Jeremy RaabFamily Medicine Physician | $37,526 | 492 |
| 45Elizabeth SantosAdult Health Nurse Practitioner | $36,189 | 318 |
| 46Brian CreghanMedical Physician Assistant | $34,439 | 888 |
| 47Arania AdolphsonFamily Medicine Physician | $29,792 | 396 |
| 48Denise Taitano-RitterFamily Medicine Physician | $29,362 | 443 |
| 49Sarita StovallGerontology Nurse Practitioner | $28,701 | 530 |
| 50Bethany HelmPhysician Assistant | $27,476 | 256 |
Source: CMS Medicare Part D Prescribers by Provider, 2024 (data.cms.gov), matched to CMS NPPES by NPI; vaccine share from the prescriber's top drugs in the CMS by-provider-and-drug file. Specialty is the taxonomy the clinician reported to NPPES.
Common questions
How many Medicare prescribers are in Guam?
Guam has 178 Medicare Part D prescribers who filed 105,248 claims totaling $9.5 million in drug costs.
What is the opioid prescribing rate in Guam?
Opioids were 1.39 of every 100 Medicare Part D claims written by Guam prescribers in 2024, against 3.52 nationally (CMS). 80 of the state's 167 Part D prescribers in CMS's geography file (47.9%) wrote at least one opioid.
Checking a prescriber
Open the prescriber's record for the full NPI entry and prescribing detail, then confirm the license on the state board search. The Part D file covers Medicare Part D only; commercial, Medicaid, VA and cash prescriptions are not in it.
Prescriber rankings in other states
- Alabama
- Alaska
- American Samoa
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Guam
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Northern Mariana Islands
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Puerto Rico
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virgin Islands
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
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 Medicare Part D data year 2024 (CMS).