Nathaniel James Baker, MD
Emergency Medicine Physician · Peoria, IL
Nathaniel James Baker, MD is an emergency medicine physician with a practice address in Peoria, Illinois, and NPI 1174187652, issued on Apr 30, 2019. Check the license (Illinois 036159141, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Nathaniel James Baker
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 036159141 IL
Self-reported in NPPES; status is on the state search - Practice location
- 530 NE Glen Oak Ave, Peoria, IL 61637
- Phone
- (309) 655-2109
- Enumerated
- Apr 30, 2019
- Record last updated
- Oct 30, 2024
- Medicare enrollment
- Enrolled (PECOS I20220808002213); accepts Medicare assignment
- Medical or professional school
- University Of South Florida College Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 3,291 in Illinois → Look up another NPI →
Also registered at 530 NE Glen Oak Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Nathaniel James Baker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036159141Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
23% fewer Medicare Part D claims than the average emergency medicine physician in 2024
173 Medicare Part D claims for 125 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 37 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen27 claims
- Ondansetron Odt18 claims
- Prednisone15 claims
- Cephalexin14 claims
- Azithromycin11 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.
Industry payments in 2024: $600.00
1 payment: consulting fee; the largest payer was Abbott Laboratories. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Osf Multi-Specialty GroupPeoria, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nathaniel James Baker among 3,291 emergency medicine physician records in Illinois
Nathaniel James Baker, MD is one of 3,291 emergency medicine physician records with a practice address in Illinois. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 74% of them.
- NPI issued2019 · 74% of these records are older, 22% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 57% of these records are
- Graduated2019 · median 2012 among the 1,867 with a school on file
- Record last updated2024 · 47% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
138 emergency medicine physician records list a practice address in Peoria
They are 138 of the 4,621 NPPES records with a practice address in Peoria, and 3,291 emergency medicine physician records in Illinois.
All 3,291 in Illinois → Every provider in Peoria → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Lisa Barker, M.D.Peoria, IL 616371477580116
- James Brown, M.D.Peoria, IL 616371699704122
- Michael Cruz, M.D.Peoria, IL 616371295763787
- Troy Cutler, M.D.Peoria, IL 616371639108020
- Joanna Gardner, M.D.Peoria, IL 616371104852631
- John Hafner, M.D.Peoria, IL 616371255360715
- James Hubler, M.D.Peoria, IL 616371861428492
- Paul Matthews, M.D.Peoria, IL 616371619906146
Common questions
What is Nathaniel James Baker, MD's NPI number?
Nathaniel James Baker, MD's National Provider Identifier (NPI) is 1174187652, issued on Apr 30, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Nathaniel James Baker, MD located?
The NPPES record lists a practice address at 530 NE Glen Oak Ave, Peoria, IL, 61637. Phone: (309) 655-2109. Providers update this record themselves, so call before visiting.
How can I verify Nathaniel James Baker, MD's license?
NPPES lists Illinois license number 036159141, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nathaniel James Baker, MD prescribe under Medicare Part D?
In 2024, Nathaniel James Baker, MD had 173 Medicare Part D claims for 125 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.