Rex Baker, MD
Family Medicine Physician · Salem, OR
Rex Baker, MD is a family medicine physician with a practice address in Salem, Oregon, and NPI 1891834891, issued on Feb 6, 2007. Check the license on the Oregon Medical Board; the Medicare figures below come from public CMS files.
- Name
- Rex Baker
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- DR.0067328 CO
MD2008-0191 NM
Self-reported in NPPES; status is on the state search - Practice location
- 2400 Lancaster Dr NE, Salem, OR 97305
- Phone
- (503) 361-5400
- Enumerated
- Feb 6, 2007
- Entity
- Type 1 · individual
Also registered at 2400 Lancaster Dr NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellany Adams, LCSWClinical Social Worker1083005748
- Nghia BanhPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1689083073
- James Barger, M.S.N., A.N.P.Occupational Health Nurse Practitioner1114144193
- Elizabeth Bjornskov, M.D.Neurology Physician1265528012
- Lucy BollingerPediatrics Physician1669904660
- Francine Boullosa, PHYSICIAN ASSISTANTPhysician Assistant1275645715
Verify Rex Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOregon Medical BoardCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
92% fewer Medicare Part D claims than the average family medicine physician in 2024
282 Medicare Part D claims for 210 beneficiaries, against an average of 3,519 among the 111,126 providers of this specialty who prescribed in Part D. 16 claims were for opioids.
Most prescribed
- Doxycycline Monohydrate26 claims
- Cefadroxil19 claims
- Nitrofurantoin Mono-Macro18 claims
- Prednisone17 claims
- Albuterol Sulfate Hfa12 claims
- Paxlovid12 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.
One hospital or facility affiliation
- Kaiser Foundation Health Plan OF The NorthwestClackamas, OR
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
153 family medicine physician records list a Salem practice address
They are 153 of the 6,700 NPPES records with a Salem practice address, and 2,711 family medicine physician records in Oregon.
All 153 in Salem → All 2,711 in Oregon → Every provider in Salem →
Other family medicine physician records in Oregon
- Roxana Abbott, DOPortland, OR1275799082
- David Abdun-Nur, M.D.Grants Pass, OR1396737847
- Traci Ackron, D.O.Hillsboro, OR1336588789
- Orlando Acosta, MDHood River, OR1912990375
- Michele Adamcak, D.O.Tigard, OR1114097227
- Standley Adamek, DOTigard, OR1144515230
- Harry Adamo, MDSpringfield, OR1235191412
- Allyson AdamsClackamas, OR1043899537
- Caroline Adams, MDGresham, OR1164840815
- Justin Adams, M.D.Medford, OR1760616866
Common questions
What is Rex Baker, MD's NPI number?
Rex Baker, MD's National Provider Identifier (NPI) is 1891834891, issued on Feb 6, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Rex Baker, MD located?
The NPPES record lists a practice address at 2400 Lancaster Dr NE, Salem, OR, 97305. Phone: (503) 361-5400. Providers update this record themselves, so call before visiting.
How can I verify Rex Baker, MD's license?
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 Rex Baker, MD prescribe under Medicare Part D?
In 2024, Rex Baker, MD had 282 Medicare Part D claims for 210 beneficiaries; the average among family medicine physician prescribers was 3,519. 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.