Mark Gardner Bates, MD
Internal Medicine Physician · Beaverton, OR
Mark Gardner Bates, MD is an internal medicine physician with a practice address in Beaverton, Oregon, and NPI 1558453696, issued on Sep 28, 2006. Check the license (Oregon MD24179, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Gardner Bates
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD24179 OR
Self-reported in NPPES; status is on the state search - Practice location
- 15950 SW Millikan Way, Beaverton, OR 97006
- Phone
- (503) 646-0161
- Enumerated
- Sep 28, 2006
- Record last updated
- Oct 19, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (503) 643-7459
- Medicaid ID
- 227373 OR
- Medicare enrollment
- Enrolled (PECOS I20040305000227); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,116 in Oregon → Look up another NPI →
Also registered at 15950 SW Millikan Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Reewen D'Souza-Kamath, M.D.Internal Medicine Physician1831192756
- Maria Cristina Duran, M.D.Family Medicine Physician1710195508
- Marni Foley, MDInternal Medicine Physician1467544502
- Mary Horrall, MDPediatrics Physician1790876274
Verify Mark Gardner Bates in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD24179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average internal medicine physician in 2024
7,397 Medicare Part D claims for 686 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. 68 claims were for opioids.
Most prescribed
- Losartan Potassium463 claims
- Amlodipine Besylate429 claims
- Atorvastatin Calcium380 claims
- Lovastatin349 claims
- Levothyroxine Sodium279 claims
- Lisinopril262 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
- Portland ClinicBeaverton, OR
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Gardner Bates among 2,116 internal medicine physician records in Oregon
Mark Gardner Bates, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 54% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1992 · median 2008 among the 1,232 with a school on file
- Record last updated2020 · 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).
46 internal medicine physician records list a practice address in Beaverton
They are 46 of the 3,604 NPPES records with a practice address in Beaverton, and 2,116 internal medicine physician records in Oregon.
All 2,116 in Oregon → Every provider in Beaverton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Reewen D'Souza-Kamath, M.D.Beaverton, OR 970061831192756
- Lawrence Elzinga, MDBeaverton, OR 970061518026962
- Marni Foley, MDBeaverton, OR 970061467544502
- Thomas Gilberts, MDBeaverton, OR 970061841214236
- James Iwaniec, MDHillsboro, OR 970061356427215
- Gary Kim, M.D.Beaverton, OR 970061306820667
- Roger Leverette, MDBeaverton, OR 970061700925054
- David Mihelic, MDAloha, OR 970061053596189
Common questions
What is Mark Gardner Bates, MD's NPI number?
Mark Gardner Bates, MD's National Provider Identifier (NPI) is 1558453696, issued on Sep 28, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Gardner Bates, MD located?
The NPPES record lists a practice address at 15950 SW Millikan Way, Beaverton, OR, 97006. Phone: (503) 646-0161. Providers update this record themselves, so call before visiting.
How can I verify Mark Gardner Bates, MD's license?
NPPES lists Oregon license number MD24179, 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 Mark Gardner Bates, MD prescribe under Medicare Part D?
In 2024, Mark Gardner Bates, MD had 7,397 Medicare Part D claims for 686 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.