Ian Best, M.D.
Pediatrics Physician · Marseilles, IL
Ian Best, M.D. is a pediatrics physician with a practice address in Marseilles, Illinois, and NPI 1659359248, issued on Jan 4, 2006. Check the license (Illinois 036111569, 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
- Ian Best
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 036111569 IL
Self-reported in NPPES; status is on the state search - Practice location
- 580 Sycamore St, Marseilles, IL 61341
- Phone
- (815) 795-2122
- Enumerated
- Jan 4, 2006
- Record last updated
- Feb 25, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (815) 795-3507
- Medicaid ID
- 036111569 IL
- Entity
- Type 1 · individual
Also registered at 580 Sycamore St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lloyd Flatt, M.D.Internal Medicine Physician1295713766
- Dawn Harris, LCSWClinical Social Worker1093324865
Verify Ian Best 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 036111569Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1 pediatrics physician records list a practice address in Marseilles
They are 1 of the 25 NPPES records with a practice address in Marseilles, and 3,176 pediatrics physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other pediatrics physician records in Illinois
- Waleed Abbasi, M.D.Rockford, IL1487941969
- Aiah Abdel-AalChicago, IL1255115846
- Mahmoud Abdel-Ghani, MDSpringfield, IL1487495883
- Boraan Abdulkarim, MDMaywood, IL1700689379
- Lubna Abdullah, MDWheaton, IL1558504142
- Zainab Abdullah, M.D.Chicago, IL1356579650
- Sneha Abichandani, M.DChicago, IL1346505286
- Lynn Ables, MDWheaton, IL1285795989
- Emil Abraham, MDSpringfield, IL1396419768
- Rebecca AbrahamChicago, IL1154174209
Common questions
What is Ian Best, M.D.'s NPI number?
Ian Best, M.D.'s National Provider Identifier (NPI) is 1659359248, issued on Jan 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ian Best, M.D. located?
The NPPES record lists a practice address at 580 Sycamore St, Marseilles, IL, 61341. Phone: (815) 795-2122. Providers update this record themselves, so call before visiting.
How can I verify Ian Best, M.D.'s license?
NPPES lists Illinois license number 036111569, 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.