Jonathon M. Thorp, M.D.
Internal Medicine Physician · Tamuning, GU
Jonathon M. Thorp, M.D. is an internal medicine physician with a practice address in Tamuning, Guam, and NPI 1720344732, issued on Apr 3, 2012. Check the license (Guam M-2218, as entered in NPPES) with the Guam board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jonathon M. Thorp
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- M-2218 GU
M84011 MD
MD176634 OR
Self-reported in NPPES; status is on the state search - Practice location
- 388 Ypao RD, Tamuning, GU 96913
- Phone
- (671) 646-8881
- Enumerated
- Apr 3, 2012
- Record last updated
- Sep 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160927000426); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2012
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 24 in Guam → Look up another NPI →
Also registered at 388 Ypao RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Arnie Lou Baker, NPFamily Nurse Practitioner1487132973
- Alison Chong, FNPFamily Nurse Practitioner1073111712
- Dae-Eil ChongPhysical Therapist1831474410
- Phyllis Collins, C.N.P.Nurse Practitioner1780629378
- Angeline David, DRPH, MHS, RDRegistered Dietitian1538586581
- Daniel Debardeleben, MDFamily Medicine Physician1598253379
Verify Jonathon M. Thorp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Guam board licenses this profession
Search for license M-2218Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 54% of the cost of the top drugs
2,649 Medicare Part D claims for 215 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 23 claims were for opioids.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Atorvastatin Calcium199 claims
- Losartan Potassium186 claims
- Amlodipine Besylate170 claims
- Simvastatin127 claims
- Levothyroxine Sodium105 claims
- Metoprolol Succinate103 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 2 group practices
- General Conference Corp OF SdaTamuning, GU
- Portland Adventist Medical CenterClackamas, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jonathon M. Thorp among 24 internal medicine physician records in Guam
Jonathon M. Thorp, M.D. is one of 24 internal medicine physician records with a practice address in Guam. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 71% of them.
- NPI issued2012 · 71% of these records are older, 25% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2012 · median 1993 among the 16 with a school on file
- Record last updated2021 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Guam practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 internal medicine physician records list a practice address in Tamuning
They are 12 of the 411 NPPES records with a practice address in Tamuning, and 24 internal medicine physician records in Guam.
All 24 in Guam → Every provider in Tamuning → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Leopoldo Arcilla, MDMangilao, GU 969131144364753
- Ellen Bez, MDTamuning, GU 969131649484197
- Young Chang, MDTamuning, GU 969131639218290
- Alix Chenet, MDOka Tamuning, GU 969131669530507
- Vincent Duenas, MDTamuning, GU 969131831244888
- Pablo Guzman, M.D.Tamuning, GU 969131023081304
- Johnny Lim, M.D.Tamuning, GU 969131265494868
- Doris Lim, M.D.Tamuning, GU 969131295790178
Common questions
What is Jonathon M. Thorp, M.D.'s NPI number?
Jonathon M. Thorp, M.D.'s National Provider Identifier (NPI) is 1720344732, issued on Apr 3, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Jonathon M. Thorp, 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 Jonathon M. Thorp, M.D.'s license?
NPPES lists Guam license number M-2218, as entered by the provider. Search the Guam board that licenses this profession; the NPPES record confirms identity only.
How much does Jonathon M. Thorp, M.D. prescribe under Medicare Part D?
In 2024, Jonathon M. Thorp, M.D. had 2,649 Medicare Part D claims for 215 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.