William B. Baker, M.D.
Emergency Medicine Physician · Jonesboro, AR
William B. Baker, M.D. is an emergency medicine physician with a practice address in Jonesboro, Arkansas, and NPI 1942442900, issued on Apr 6, 2009. Check the license (Arkansas E-6678, as entered in NPPES) on the Arkansas State Medical Board; the Medicare figures below come from public CMS files.
- Name
- William B. Baker
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- E-6678 AR
2012037984 MO
Self-reported in NPPES; status is on the state search - Practice location
- 2417 Sea Island, Jonesboro, AR 72404
- Phone
- (870) 761-4125
- Enumerated
- Apr 6, 2009
- Record last updated
- Nov 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 447 in Arkansas → Look up another NPI →
Verify William B. Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArkansas State Medical Board
Search for license E-6678Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average emergency medicine physician in 2024
131 Medicare Part D claims for 69 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 23 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen16 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.
William B. Baker among 447 emergency medicine physician records in Arkansas
William B. Baker, M.D. is one of 447 emergency medicine physician records with a practice address in Arkansas. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.
- NPI issued2009 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 87% of these records are
- In the CMS Doctors and Clinicians fileNo · 67% of these records are
- Record last updated2012 · 59% 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 Arkansas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Arkansas
There are 447 emergency medicine physician records in Arkansas.
All 447 in Arkansas → Every provider in Jonesboro → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Jason MartinezJonesboro, AR 724051770111619
- Justin Baggs, M.D.Jonesboro, AR 724011063855302
- Michael Belt, M.D.Jonesboro, AR 724011770978199
- Alexander Dunlap, M.D.Jonesboro, AR 724011225142607
- Mattie Erby, MDJonesboro, AR 724011225664378
- Christopher Fallon, M.D.Jonesboro, AR 724011427492610
- James Fletcher, MDJonesboro, AR 724011407880644
- Martin Kosciuk, MDJonesboro, AR 724011477745644
Common questions
What is William B. Baker, M.D.'s NPI number?
William B. Baker, M.D.'s National Provider Identifier (NPI) is 1942442900, issued on Apr 6, 2009. An NPI identifies a provider in billing; it is not a license.
Where is William B. Baker, M.D. located?
The NPPES record lists a practice address at 2417 Sea Island, Jonesboro, AR, 72404. Phone: (870) 761-4125. Providers update this record themselves, so call before visiting.
How can I verify William B. Baker, M.D.'s license?
NPPES lists Arkansas license number E-6678, as entered by the provider. Search the Arkansas State Medical Board at https://armedicalboard.adh.arkansas.gov/public/verify/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William B. Baker, M.D. prescribe under Medicare Part D?
In 2024, William B. Baker, M.D. had 131 Medicare Part D claims for 69 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.