Graeme Dennis Marquez, MBBS
Internal Medicine Physician · Springfield, OR
Graeme Dennis Marquez, MBBS is an internal medicine physician with a practice address in Springfield, Oregon, and NPI 1245801588, issued on Jul 7, 2021. Check the license (Oregon MD224142, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Graeme Dennis Marquez
- Credential
- MBBS
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- MD224142 OR
57.251427 OH
Self-reported in NPPES; status is on the state search - Practice location
- 147 S 52ND Place, Springfield, OR 97478
- Phone
- (541) 746-1166
- Enumerated
- Jul 7, 2021
- Record last updated
- Jul 23, 2026
- Fax
- (541) 393-1607
- Medicare enrollment
- Enrolled (PECOS I20250519003082); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 147 S 52ND Place
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Siva Kamal GuntupalliFamily Medicine Physician1619602711
- Margot Underwood, PA-CMedical Physician Assistant1508859968
Verify Graeme Dennis Marquez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD224142Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average internal medicine physician in 2024
183 Medicare Part D claims for 61 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.
Most prescribed
- Amlodipine Besylate35 claims
- Lisinopril23 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 one group practice
- Praxis Health PCSpringfield, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Graeme Dennis Marquez among 2,116 internal medicine physician records in Oregon
Graeme Dennis Marquez, MBBS is one of 2,116 internal medicine physician records with a practice address in Oregon. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 91% of them.
- NPI issued2021 · 91% of these records are older, 7% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2014 · median 2008 among the 1,232 with a school on file
- Record last updated2026 · 58% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 internal medicine physician records list a practice address in Springfield
They are 35 of the 2,209 NPPES records with a practice address in Springfield, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Springfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Magha Dissanayake, MDSpringfield, OR 974781578545182
- Kathleen Jackson, M.D.Springfield, OR 974781548236029
- Joanna Marie Aquino-Laban, M.D.Springfield, OR 974771336435536
- Kevin Brown, M.D.Springfield, OR 974771558757922
- Marion DiermayerSpringfield, OR 974771548777170
- Brian Fields, D.O.Springfield, OR 974771245541580
- Peter Fox, DOSpringfield, OR 974771326435504
- Swati Gobhil, M.D.Springfield, OR 974771679952105
Common questions
What is Graeme Dennis Marquez, MBBS's NPI number?
Graeme Dennis Marquez, MBBS's National Provider Identifier (NPI) is 1245801588, issued on Jul 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Graeme Dennis Marquez, MBBS located?
The NPPES record lists a practice address at 147 S 52ND Place, Springfield, OR, 97478. Phone: (541) 746-1166. Providers update this record themselves, so call before visiting.
How can I verify Graeme Dennis Marquez, MBBS's license?
NPPES lists Oregon license number MD224142, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Graeme Dennis Marquez, MBBS prescribe under Medicare Part D?
In 2024, Graeme Dennis Marquez, MBBS had 183 Medicare Part D claims for 61 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.