Harsha Kaza, MD
Internal Medicine Physician · Zion, IL
Harsha Kaza, MD is an internal medicine physician with a practice address in Zion, Illinois, and NPI 1598786436, issued on Jul 23, 2006. Check the license (Illinois 036-110833, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Harsha Kaza
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036-110833 IL
46268 WI
Self-reported in NPPES; status is on the state search - Practice location
- 3115 Lewis Ave, Zion, IL 60099
- Phone
- (847) 746-3752
- Enumerated
- Jul 23, 2006
- Record last updated
- Jan 13, 2026
- Medicaid ID
- 34466000 WI
- Medicare enrollment
- Enrolled (PECOS I20050518000972); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 3115 Lewis Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Harold Birky, DDSDentist1215153812
- Clarence Engstrom, MDFamily Medicine Physician1356327514
- Jennifer Garland, D.D.S.General Practice Dentistry1356563761
- Rebecca Matteson, LPTPhysical Therapist1457437170
- Dennis McCrearyFamily Medicine Physician1396720694
- Mariel Visconde, RPTPhysical Therapist1629323696
Verify Harsha Kaza 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 036-110833Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
33% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,136 Medicare Part D claims for 259 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Atorvastatin Calcium279 claims
- Amlodipine Besylate123 claims
- Losartan Potassium97 claims
- Lisinopril93 claims
- Levothyroxine Sodium82 claims
- Metformin Hcl74 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 one group practice
- Amg Illinois LtdZion, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harsha Kaza among 7,238 internal medicine physician records in Illinois
Harsha Kaza, 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
- Graduated1997 · 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).
4 internal medicine physician records list a practice address in Zion
They are 4 of the 222 NPPES records with a practice address in Zion, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Zion → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Gopal Bhalala, MDZion, IL 600991669473963
- Mohanad Joudeh, M.D.Zion, IL 600991659546414
- Uday Paul, MDZion, IL 600991982623575
- Erin Davis-Delay, M.D.Woodstock, IL 600981215985387
- Joseph Emmons, M.D.Woodstock, IL 600981407804586
- Karen Judy Thome, MDWoodstock, IL 600981093763120
- Bibiano Ronquillo, MDWoodstock, IL 600981285791228
- Mark Stolar, M.D.Woodstock, IL 600981396784591
Common questions
What is Harsha Kaza, MD's NPI number?
Harsha Kaza, MD's National Provider Identifier (NPI) is 1598786436, issued on Jul 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harsha Kaza, MD located?
The NPPES record lists a practice address at 3115 Lewis Ave, Zion, IL, 60099. Phone: (847) 746-3752. Providers update this record themselves, so call before visiting.
How can I verify Harsha Kaza, MD's license?
NPPES lists Illinois license number 036-110833, 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 Harsha Kaza, MD prescribe under Medicare Part D?
In 2024, Harsha Kaza, MD had 2,136 Medicare Part D claims for 259 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.