Jack D. Keller, M.D.
Family Medicine Physician · Marion, IL
Jack D. Keller, M.D. is a family medicine physician with a practice address in Marion, Illinois, and NPI 1467636605, issued on Dec 24, 2007. Check the license (Illinois 036056531, 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
- Jack D. Keller
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036056531 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1008 W. Cherry St., Marion, IL 62959
- Phone
- (618) 997-2919
- Enumerated
- Dec 24, 2007
- Record last updated
- Feb 20, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (618) 997-6851
- Medicaid ID
- 036056531 IL
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Verify Jack D. Keller 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 036056531Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Jack D. Keller among 6,215 family medicine physician records in Illinois
Jack D. Keller, M.D. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 50% newer
- In a Medicare fileNo · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2013 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
19 family medicine physician records list a practice address in Marion
They are 19 of the 1,171 NPPES records with a practice address in Marion, and 6,215 family medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 6,215 in Illinois → Every provider in Marion → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- James Alexander, MDMarion, IL 629591114094851
- Jan Bowman-Marsh, MDMarion, IL 629591992766190
- Douglas Brown, D.O.Marion, IL 629591033364674
- Shobha Dayal, MDMarion, IL 629591396702817
- Jodi Fox, M.D.Marion, IL 629591508848284
- Eric Graham, MDMarion, IL 629591720120462
- Renato Katubig, MDMarion, IL 629591316023898
- Sean McCain, MDMarion, IL 629591629050307
Common questions
What is Jack D. Keller, M.D.'s NPI number?
Jack D. Keller, M.D.'s National Provider Identifier (NPI) is 1467636605, issued on Dec 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Jack D. Keller, M.D. located?
The NPPES record lists a practice address at 1008 W. Cherry St., Marion, IL, 62959. Phone: (618) 997-2919. Providers update this record themselves, so call before visiting.
How can I verify Jack D. Keller, M.D.'s license?
NPPES lists Illinois license number 036056531, 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.