Theodore E. Dastych, M.D.
Internal Medicine Physician · Joliet, IL
Theodore E. Dastych, M.D. is an internal medicine physician with a practice address in Joliet, Illinois, and NPI 1205084431, issued on Aug 29, 2008. Check the license (Illinois 036051213, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Theodore E. Dastych
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036051213 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3237 Oakwood Dr, Joliet, IL 60431
- Phone
- (815) 741-1126
- Enumerated
- Aug 29, 2008
- Record last updated
- Aug 29, 2008 (not updated in 18 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Theodore E. Dastych 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 036051213Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
100% fewer Medicare Part D claims than the average internal medicine physician in 2024
13 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
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.
Theodore E. Dastych among 7,238 internal medicine physician records in Illinois
Theodore E. Dastych, M.D. 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. Its NPI, issued in 2008, is newer than 45% of them.
- NPI issued2008 · 45% of these records are older, 51% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2008 · 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).
40 internal medicine physician records list a practice address in Joliet
They are 40 of the 2,047 NPPES records with a practice address in Joliet, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Joliet → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Celeste Kaliski, M.D.Joliet, IL 604311376988238
- Paola Molina, M.DJoliet, IL 604311720248313
- Olufemi Aboyeji, MDHomewood, IL 604301790983690
- Michael Coughlin, MDJoliet, IL 604321881640068
- Ram Gopi, MDHomewood, IL 604301225109044
- Daniel Gutierrez, M.D.Joliet, IL 604321801907548
- Diana Jaime, M.D.Joliet, IL 604321144356213
- Patricia Langehennig, MD, MPHJoliet, IL 604321841382371
Common questions
What is Theodore E. Dastych, M.D.'s NPI number?
Theodore E. Dastych, M.D.'s National Provider Identifier (NPI) is 1205084431, issued on Aug 29, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Theodore E. Dastych, M.D. located?
The NPPES record lists a practice address at 3237 Oakwood Dr, Joliet, IL, 60431. Phone: (815) 741-1126. Providers update this record themselves, so call before visiting.
How can I verify Theodore E. Dastych, M.D.'s license?
NPPES lists Illinois license number 036051213, 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 Theodore E. Dastych, M.D. prescribe under Medicare Part D?
In 2024, Theodore E. Dastych, M.D. had 13 Medicare Part D claims; the average among internal medicine physician prescribers was 3,176. 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.