Johara Hassan, MD
Internal Medicine Physician · Naperville, IL
Johara Hassan, MD is an internal medicine physician with a practice address in Naperville, Illinois, and NPI 1568417301, issued on May 23, 2006. Check the license (Illinois 036109970, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Johara Hassan
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036109970 IL
Self-reported in NPPES; status is on the state search - Practice location
- 223 N Whispering Hills Dr, Naperville, IL 60540
- Phone
- (929) 491-1555
- Enumerated
- May 23, 2006
- Record last updated
- Jul 16, 2026
- Medicare enrollment
- Enrolled (PECOS I20221130000137); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Johara Hassan 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 036109970Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
99 Medicare Part D claims for 63 beneficiaries, 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.
Bills Medicare through one group practice
- Good Samaritan Regional Health CenterMount Vernon, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Johara Hassan among 7,238 internal medicine physician records in Illinois
Johara Hassan, 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 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1986 · 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).
75 internal medicine physician records list a practice address in Naperville
They are 75 of the 4,634 NPPES records with a practice address in Naperville, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Naperville → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Tina Bhargava, M.D.Naperville, IL 605401699761783
- Loveena Bouri, MDNaperville, IL 605401700827656
- Cathleen Cregier, APNNaperville, IL 605401245227271
- Jason Dy, MDNaperville, IL 605401396710265
- Naira Hashmi, MDNaperville, IL 605401164418729
- Maleeha Hashmi-Basha, MDNaperville, IL 605401528054483
- Jerome Hong, MDNaperville, IL 605401336115823
- Susan Kim, MDNaperville, IL 605401407822349
Common questions
What is Johara Hassan, MD's NPI number?
Johara Hassan, MD's National Provider Identifier (NPI) is 1568417301, issued on May 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Johara Hassan, MD located?
The NPPES record lists a practice address at 223 N Whispering Hills Dr, Naperville, IL, 60540. Phone: (929) 491-1555. Providers update this record themselves, so call before visiting.
How can I verify Johara Hassan, MD's license?
NPPES lists Illinois license number 036109970, 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 Johara Hassan, MD prescribe under Medicare Part D?
In 2024, Johara Hassan, MD had 99 Medicare Part D claims for 63 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.