Geoffrey Robert Hamilton, MD
Internal Medicine Physician · Bristol, RI
Geoffrey Robert Hamilton, MD is an internal medicine physician with a practice address in Bristol, Rhode Island, and NPI 1467453431, issued on Aug 2, 2005. Check the license (Rhode Island MD 10625, as entered in NPPES) on the Rhode Island Board of Medical Licensure and Discipline; the Medicare figures below come from public CMS files.
- Name
- Geoffrey Robert Hamilton
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD 10625 RI
Self-reported in NPPES; status is on the state search - Practice location
- 1180 Hope St, Bristol, RI 02809
- Phone
- (404) 253-8900
- Enumerated
- Aug 2, 2005
- Record last updated
- Apr 17, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (401) 253-3131
- Medicaid ID
- 9025999 RI
- Medicare enrollment
- Enrolled (PECOS I20050218000002); accepts Medicare assignment
- Medical or professional school
- Albany Medical College Of Union University, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,033 in Rhode Island → Look up another NPI →
Also registered at 1180 Hope St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Diane Deuschle, RNPFamily Nurse Practitioner1326285289
- Raquel Diaz, MDInternal Medicine Physician1073216974
Verify Geoffrey Robert Hamilton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersRhode Island Board of Medical Licensure and Discipline
Search for license MD 10625Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.4 times the Medicare Part D claims of the average internal medicine physician in 2024
7,530 Medicare Part D claims for 647 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 154 claims were for opioids.
Most prescribed
- Atorvastatin Calcium530 claims
- Lisinopril400 claims
- Amlodipine Besylate315 claims
- Omeprazole274 claims
- Levothyroxine Sodium273 claims
- Losartan Potassium261 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.
Industry payments in 2024: $150.00
1 payment: food and beverage; the largest payer was Madrigal Pharmaceuticals. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Medical Associates OF RI, Inc.Bristol, RI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Geoffrey Robert Hamilton among 1,033 internal medicine physician records in Rhode Island
Geoffrey Robert Hamilton, MD is one of 1,033 internal medicine physician records with a practice address in Rhode Island. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated1997 · median 2006 among the 590 with a school on file
- Record last updated2008 · 48% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
16 internal medicine physician records list a practice address in Bristol
They are 16 of the 202 NPPES records with a practice address in Bristol, and 1,033 internal medicine physician records in Rhode Island.
All 1,033 in Rhode Island → Every provider in Bristol → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Paul Agatiello, M.D.Bristol, RI 028091407961196
- Michael Baaklini, MDBristol, RI 028091922119411
- Kathryn Banner, MDBristol, RI 028091417094061
- Cassandra Constantino, MDBristol, RI 028091598766537
- Bruce Fischer, MDBristol, RI 028091598766552
- Margaret Furtado, MDBristol, RI 028091831141498
- Pamela Harrop, MDBristol, RI 028091437150422
- Leslie Mohlman, MDBristol, RI 028091265433262
Common questions
What is Geoffrey Robert Hamilton, MD's NPI number?
Geoffrey Robert Hamilton, MD's National Provider Identifier (NPI) is 1467453431, issued on Aug 2, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Geoffrey Robert Hamilton, MD located?
The NPPES record lists a practice address at 1180 Hope St, Bristol, RI, 02809. Phone: (404) 253-8900. Providers update this record themselves, so call before visiting.
How can I verify Geoffrey Robert Hamilton, MD's license?
NPPES lists Rhode Island license number MD 10625, as entered by the provider. Search the Rhode Island Board of Medical Licensure and Discipline at https://healthri.mylicense.com/Verification/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Geoffrey Robert Hamilton, MD prescribe under Medicare Part D?
In 2024, Geoffrey Robert Hamilton, MD had 7,530 Medicare Part D claims for 647 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.