John Michael Malleis, MD
Internal Medicine Physician · Medford, OR
John Michael Malleis, MD is an internal medicine physician with a practice address in Medford, Oregon, and NPI 1144511643, issued on May 2, 2011. Check the license (Oregon MD174285, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Michael Malleis
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD174285 OR
Self-reported in NPPES; status is on the state search - Practice location
- 2859 State St Ste 102, Medford, OR 97504
- Phone
- (248) 459-5290
- Enumerated
- May 2, 2011
- Record last updated
- Dec 3, 2015 (not updated in 11 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151223000525); accepts Medicare assignment
- Medical or professional school
- Wayne State University School Of Medicine, 2011
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Verify John Michael Malleis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD174285Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3.0 times the Medicare Part D claims of the average internal medicine physician in 2024
9,679 Medicare Part D claims for 577 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 880 claims were for opioids.
Most prescribed
- Atorvastatin Calcium391 claims
- Lisinopril306 claims
- Hydrocodone-Acetaminophen287 claims
- Levothyroxine Sodium275 claims
- Eliquis244 claims
- Amlodipine Besylate226 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
- PeacehealthFlorence, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Michael Malleis among 2,116 internal medicine physician records in Oregon
John Michael Malleis, MD 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 2011, is newer than 65% of them.
- NPI issued2011 · 65% of these records are older, 32% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated2011 · median 2008 among the 1,232 with a school on file
- Record last updated2015 · 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).
56 internal medicine physician records list a practice address in Medford
They are 56 of the 4,542 NPPES records with a practice address in Medford, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Medford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Edward Cullen, MDMedford, OR 975041447257308
- Thomas Detweiler, M.D.Medford, OR 975041659310704
- Jon Gell, MDMedford, OR 975041982694873
- Patrick GilletteMedford, OR 975041578594008
- Andrean Gurov, MDMedford, OR 975041972551703
- Rebecca Hills, MDMedford, OR 975041942259833
- Ruth Lowengart, MDMedford, OR 975041528009370
- Susan Mackinnon, M.D.Medford, OR 975041104806140
Common questions
What is John Michael Malleis, MD's NPI number?
John Michael Malleis, MD's National Provider Identifier (NPI) is 1144511643, issued on May 2, 2011. An NPI identifies a provider in billing; it is not a license.
Where is John Michael Malleis, MD located?
The NPPES record lists a practice address at 2859 State St Ste 102, Medford, OR, 97504. Phone: (248) 459-5290. Providers update this record themselves, so call before visiting.
How can I verify John Michael Malleis, MD's license?
NPPES lists Oregon license number MD174285, 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 John Michael Malleis, MD prescribe under Medicare Part D?
In 2024, John Michael Malleis, MD had 9,679 Medicare Part D claims for 577 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.