Gregory Paul Kastner, MD
Internal Medicine Physician · Robinson, IL
Gregory Paul Kastner, MD is an internal medicine physician with a practice address in Robinson, Illinois, and NPI 1659361525, issued on Oct 24, 2005. Check the license (Illinois 036068467, 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
- Gregory Paul Kastner
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036068467 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1101 N Allen St Ste 200, Robinson, IL 62454
- Phone
- (618) 546-5464
- Enumerated
- Oct 24, 2005
- Record last updated
- Sep 9, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (618) 546-2634
- Medicaid ID
- 036068467 IL
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Gregory Paul Kastner 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 036068467Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory Paul Kastner among 7,238 internal medicine physician records in Illinois
Gregory Paul Kastner, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileNo · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2020 · 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 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
5 internal medicine physician records list a practice address in Robinson
They are 5 of the 145 NPPES records with a practice address in Robinson, and 7,238 internal medicine physician records in Illinois. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 7,238 in Illinois → Every provider in Robinson → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Abed Alfattah Abu Fares, MDRobinson, IL 624541467947580
- Vickie Becker, MDRobinson, IL 624541396775433
- Mary Loftin, MDRobinson, IL 624541750415741
- Mahmoud Yassin, M.D.Robinson, IL 624541518028281
- Luis Devenecia, MDOlney, IL 624501750495792
- Tanner Miller, M.D.Olney, IL 624501497135065
- Arcot Suresh, MDOlney, IL 624501265440283
- Michael Darmadi, MDVandalia, IL 624711184601577
Common questions
What is Gregory Paul Kastner, MD's NPI number?
Gregory Paul Kastner, MD's National Provider Identifier (NPI) is 1659361525, issued on Oct 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Paul Kastner, MD located?
The NPPES record lists a practice address at 1101 N Allen St Ste 200, Robinson, IL, 62454. Phone: (618) 546-5464. Providers update this record themselves, so call before visiting.
How can I verify Gregory Paul Kastner, MD's license?
NPPES lists Illinois license number 036068467, 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.