NPPES file of Aug 9, 2026

Gary D. Marks, DO

Emergency Medicine Physician · Medford, OR

Gary D. Marks, DO is an emergency medicine physician with a practice address in Medford, Oregon, and NPI 1861569212, issued on Nov 29, 2006. Check the license (Oregon DO21010, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861569212
Name
Gary D. Marks
Credential
DO
Primary taxonomy
Emergency Medicine Physician 207P00000X
License number
DO21010 OR
Self-reported in NPPES; status is on the state search
Practice location
2825 E Barnett RD, Medford, OR 97504
Phone
(541) 789-7000
Enumerated
Nov 29, 2006
Record last updated
Apr 2, 2013 (not updated in 13 years: call before relying on the address or phone)
Medicaid ID
151272 OR
Medicare enrollment
Enrolled (PECOS I20041123000410); accepts Medicare assignment
Medical or professional school
College Of Osteo Med Of The Pacific At Pomona, 1994
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest emergency medicine physician records → All 1,079 in Oregon → Look up another NPI →

Also registered at 2825 E Barnett RD

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

  1. Miran Abdulhadi, M.D.Hospitalist Physician1205185600
  2. Mohamed Aboukhashan, MDInternal Medicine Physician1932350782
  3. Anshu Aery, MDHospitalist Physician1295388387
  4. Zainab Aina-Shittu, MDHospitalist Physician1497399117
  5. Chukwubuikem Akanegbu, PHARMDPharmacist1396626859
  6. Raya Al Ghalayini, MDPediatrics Physician1255990735

Verify Gary D. Marks in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license DO21010    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.

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Bills Medicare through one group practice

  1. AsanteMedford, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gary D. Marks among 1,079 emergency medicine physician records in Oregon

Gary D. Marks, DO is one of 1,079 emergency medicine physician records with a practice address in Oregon. 77% 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 3% of them.

  • NPI issued2006 · 3% of these records are older, 59% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated1994 · median 2013 among the 557 with a school on file
  • Record last updated2013 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

54 emergency medicine physician records list a practice address in Medford

They are 54 of the 4,542 NPPES records with a practice address in Medford, and 1,079 emergency medicine physician records in Oregon.

All 1,079 in Oregon → Every provider in Medford → Emergency Medicine Physician nationwide →

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Kenneth Brown, M.D.Medford, OR 975041457570178
  2. Joshua Cott, MDMedford, OR 975041629051669
  3. Ronald Crowell, MDMedford, OR 975041689705220
  4. Robert Evans, MDMedford, OR 975041730134404
  5. Eileen Killackey-Bobek, MDMedford, OR 975041710016811
  6. Mona McArdle, M.D.Medford, OR 975041972656395
  7. Julie Phillips, MDMedford, OR 975041316074446
  8. Christel Steffen, D.O.Medford, OR 975041982605689

Common questions

What is Gary D. Marks, DO's NPI number?

Gary D. Marks, DO's National Provider Identifier (NPI) is 1861569212, issued on Nov 29, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gary D. Marks, DO located?

The NPPES record lists a practice address at 2825 E Barnett RD, Medford, OR, 97504. Phone: (541) 789-7000. Providers update this record themselves, so call before visiting.

How can I verify Gary D. Marks, DO's license?

NPPES lists Oregon license number DO21010, 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.

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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.