Xem Ma Bui, MD
Neurology Physician · Medford, OR
Xem Ma Bui, MD is a neurology physician with a practice address in Medford, Oregon, and NPI 1194390187, issued on May 23, 2021. Check the license (Oregon MD227589, as entered in NPPES) on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Xem Ma Bui
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License numbers
- MD227589 OR
2025-01217 NC
303378 NC
14231018-1205 UT
Self-reported in NPPES; status is on the state search - Practice location
- 2900 State St, Medford, OR 97504
- Phone
- (541) 789-5790
- Enumerated
- May 23, 2021
- Record last updated
- Nov 12, 2025
- Medicare enrollment
- Enrolled (PECOS I20250813003305); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 287 in Oregon → Look up another NPI →
Also registered at 2900 State St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Miroslav Bobek, M.D.Neurological Surgery Physician1881693133
- Jared Brougham, MDNeurological Surgery Physician1124482815
- Sarah Crawford, NPNurse Practitioner1982953113
- Corrie Crump, ACNPC-AGNurse Practitioner1992524201
- Timothy Hall, P.A.-CPhysician Assistant1851319917
- Brett Klezmer, PA-CSurgical Physician Assistant1336034438
Verify Xem Ma Bui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical Board
Search for license MD227589Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average neurology physician in 2024
120 Medicare Part D claims for 26 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Pregabalin12 claims
- Atorvastatin Calcium11 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 2 group practices
- Asante Physician PartnersMedford, OR
- Moses Cone Physician Services, IncGreensboro, NC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Xem Ma Bui among 287 neurology physician records in Oregon
Xem Ma Bui, MD is one of 287 neurology 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 94% of them.
- NPI issued2021 · 94% of these records are older, 3% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2021 · median 2007 among the 176 with a school on file
- Record last updated2025 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Oregon
There are 287 neurology physician records in Oregon.
All 287 in Oregon → Every provider in Medford → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Walter Carlini, MDMedford, OR 975041770583338
- Christopher Dardis, MDMedford, OR 975041528217460
- Curtis Delplanche, O.D., M.D.Medford, OR 975041609986108
- Robert Egan, MDMedford, OR 975041396771358
- Minji Kim, M.D.Medford, OR 975041720424591
- Sulagshan Mahendrarajah, MDMedford, OR 975041043508070
- Jose Rodriguez Moreno, M.D.Medford, OR 975041891148854
- Pawani Sachar, M.D.Medford, OR 975041689955536
Common questions
What is Xem Ma Bui, MD's NPI number?
Xem Ma Bui, MD's National Provider Identifier (NPI) is 1194390187, issued on May 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Xem Ma Bui, MD located?
The NPPES record lists a practice address at 2900 State St, Medford, OR, 97504. Phone: (541) 789-5790. Providers update this record themselves, so call before visiting.
How can I verify Xem Ma Bui, MD's license?
NPPES lists Oregon license number MD227589, 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 Xem Ma Bui, MD prescribe under Medicare Part D?
In 2024, Xem Ma Bui, MD had 120 Medicare Part D claims for 26 beneficiaries; the average among neurology physician prescribers was 1,370. 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.