Theodore Ellis, M.D.
Anesthesiology Physician · Naperville, IL
Theodore Ellis, M.D. is an anesthesiology physician with a practice address in Naperville, Illinois, and NPI 1689622599, issued on May 4, 2006. Check the license (Illinois 036088223, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Theodore Ellis
- Credential
- M.D.
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 036088223 IL
Self-reported in NPPES; status is on the state search - Practice location
- 801 S Washington St, Naperville, IL 60540
- Phone
- (630) 355-0450
- Enumerated
- May 4, 2006
- Record last updated
- May 9, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicaid ID
- 036088223 IL
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 2,575 in Illinois → Look up another NPI →
Also registered at 801 S Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sean Adams, M.D.Anesthesiology Physician1598713661
- Saroosh Ahmed, MDEmergency Medicine Physician1639335078
- Faisal Akbari, M.DHospitalist Physician1740598705
- Catherine AlerNurse Practitioner1134584964
- Irfan Ali, DOHospitalist Physician1306427760
- Sivani Aluru, MDObstetrics & Gynecology Physician1275156325
Verify Theodore Ellis 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 036088223Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Theodore Ellis among 2,575 anesthesiology physician records in Illinois
Theodore Ellis, M.D. is one of 2,575 anesthesiology physician records with a practice address in Illinois. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 61% newer
- In a Medicare fileNo · 71% of these records are
- In the CMS Doctors and Clinicians fileNo · 62% of these records are
- Record last updated2017 · 48% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
52 anesthesiology physician records list a practice address in Naperville
They are 52 of the 4,634 NPPES records with a practice address in Naperville, and 2,575 anesthesiology physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2,575 in Illinois → Every provider in Naperville → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Sean Adams, M.D.Naperville, IL 605401598713661
- Gregory Barrett, M.D.Naperville, IL 605401841248069
- Tom Beris, M.D.Naperville, IL 605401568410652
- Shawn Burton, M.D.Naperville, IL 605401174571392
- Victor Dudzik, M.D.Naperville, IL 605401275591133
- Glen Gutzke, M.D.Naperville, IL 605401548228158
- Charles Kim, M.D.Naperville, IL 605401184672016
- Aleksander Mirski, M.D.Naperville, IL 605401316993892
Common questions
What is Theodore Ellis, M.D.'s NPI number?
Theodore Ellis, M.D.'s National Provider Identifier (NPI) is 1689622599, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Theodore Ellis, M.D. located?
The NPPES record lists a practice address at 801 S Washington St, Naperville, IL, 60540. Phone: (630) 355-0450. Providers update this record themselves, so call before visiting.
How can I verify Theodore Ellis, M.D.'s license?
NPPES lists Illinois license number 036088223, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.