Chang Hwan Park, MD
Internal Medicine Physician · Peoria, IL
Chang Hwan Park, MD is an internal medicine physician with a practice address in Peoria, Illinois, and NPI 1487390308, issued on May 12, 2022. Check the license (Illinois 036176023, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Chang Hwan Park
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036176023 IL
Self-reported in NPPES; status is on the state search - Practice location
- 221 NE Glen Oak Ave Ste W514, Peoria, IL 61636
- Phone
- (309) 672-5729
- Enumerated
- May 12, 2022
- Record last updated
- Jun 24, 2026
- Fax
- (309) 672-5772
- Medicare enrollment
- Enrolled (PECOS I20250725001288); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 221 NE Glen Oak Ave Ste W514
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kashif Haque, M.D.Internal Medicine Physician1285679704
- Shams Ilahi, MDInternal Medicine Physician1801058409
- Asra Rab, M.D.Internal Medicine Physician1710414438
Verify Chang Hwan Park 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 036176023Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
59 Medicare Part D claims for 27 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
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.
Bills Medicare through 2 group practices
- Carle Health Care IncorporatedPeoria, IL
- Methodist Medical Center OF IllinoisPeoria, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chang Hwan Park among 7,238 internal medicine physician records in Illinois
Chang Hwan Park, 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. Its NPI, issued in 2022, is newer than 78% of them.
- NPI issued2022 · 78% of these records are older, 18% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2019 · median 2003 among the 3,580 with a school on file
- Record last updated2026 · 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).
173 internal medicine physician records list a practice address in Peoria
They are 173 of the 4,621 NPPES records with a practice address in Peoria, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Peoria → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Waqas Ali, MDPeoria, IL 616361023094190
- Syed Bukhari, MDPeoria, IL 616361225052434
- Mohammad Gareeb, MDPeoria, IL 616361750909693
- Azhar GhumraPeoria, IL 616361184373615
- Nicholas GriecoPeoria, IL 616361649657685
- Kashif Haque, M.D.Peoria, IL 616361285679704
- Shams Ilahi, MDPeoria, IL 616361801058409
- Anup Kotadia, MDPeoria, IL 616361134708449
Common questions
What is Chang Hwan Park, MD's NPI number?
Chang Hwan Park, MD's National Provider Identifier (NPI) is 1487390308, issued on May 12, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Chang Hwan Park, MD located?
The NPPES record lists a practice address at 221 NE Glen Oak Ave Ste W514, Peoria, IL, 61636. Phone: (309) 672-5729. Providers update this record themselves, so call before visiting.
How can I verify Chang Hwan Park, MD's license?
NPPES lists Illinois license number 036176023, 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 Chang Hwan Park, MD prescribe under Medicare Part D?
In 2024, Chang Hwan Park, MD had 59 Medicare Part D claims for 27 beneficiaries; 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.