Registry data as of Aug 27, 2026

Mark Bates, MD

Internal Medicine Physician · Beaverton, OR

Mark 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.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1558453696
Name
Mark 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
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 15950 SW Millikan Way

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Lauren Burke, PAPhysician Assistant1073006565
  2. Prasanna ChandranFamily Medicine Physician1861567729
  3. Bryan Chitwood, MDFamily Medicine Physician1619197480
  4. Ashley Crabb, NPAdult Health Nurse Practitioner1295596492
  5. Reewen D'Souza-Kamath, M.D.Internal Medicine Physician1831192756
  6. Maria Cristina Duran, M.D.Family Medicine Physician1710195508

Verify Mark Bates in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD24179
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Oregon license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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.

  1. Mark Bates7,397
  2. Specialty average3,176

Most prescribed

  1. Losartan Potassium463 claims
  2. Amlodipine Besylate429 claims
  3. Atorvastatin Calcium380 claims
  4. Lovastatin349 claims
  5. Levothyroxine Sodium279 claims
  6. 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

  1. Portland ClinicBeaverton, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

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.

Other internal medicine physician records in Oregon

  1. Charmaine Clarisse Abalos, M.D.Medford, OR1700376050
  2. Soraya Abbassian, M.D.Portland, OR1225029184
  3. Mohamed Abdel Khalek, M.DRoseburg, OR1972687390
  4. Rand AbedalweliPortland, OR1265019996
  5. Robert Abernathy, M.D.Bend, OR1063433449
  6. Rebecca Abney, D.O.Portland, OR1881984748
  7. Mohamed Aboukhashan, MDMedford, OR1932350782
  8. Allison Abraham, D.O.Portland, OR1831488444
  9. Heidi Abreu Pacheco, M.DMount Angel, OR1669691721
  10. Hennie Abrio, MDRoseburg, OR1891925129

Common questions

What is Mark Bates, MD's NPI number?

Mark 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 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 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 Bates, MD prescribe under Medicare Part D?

In 2024, Mark 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), loaded Aug 27, 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) 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 27, 2026.