Ari J. Kaz, MD
Orthopaedic Surgery Physician · Chicago, IL
Ari J. Kaz, MD is an orthopaedic surgery physician with a practice address in Chicago, Illinois, and NPI 1013940782, issued on Jul 8, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Ari J. Kaz
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- 50626-20 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2923 N California Ave, Chicago, IL 60618
- Phone
- (773) 777-9900
- Enumerated
- Jul 8, 2006
- Record last updated
- Nov 11, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (773) 777-5927
- Medicare enrollment
- Enrolled (PECOS I20110131000486); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 995 in Illinois → Look up another NPI →
Also registered at 2923 N California Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey AckermanOrthopaedic Surgery Physician1861621351
- Nipun Atri, M.D.Infectious Disease Physician1134417553
- Wahab Brobbey, MDInfectious Disease Physician1104812528
- Kevin ChenOrthopaedic Hand Surgery Physician1982862918
- Joseph D'Silva, MDOrthopaedic Surgery Physician1871547224
- Theodore Fisher, M.D.Orthopaedic Surgery Physician1043235781
Verify Ari J. Kaz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average orthopaedic surgery physician in 2024
16 Medicare Part D claims for 13 beneficiaries, against an average of 346 among the 16,516 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 72.7 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17,630.62
5 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Illinois Bone And Joint Institute, LLCBannockburn, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ari J. Kaz among 995 orthopaedic surgery physician records in Illinois
Ari J. Kaz, MD is one of 995 orthopaedic surgery physician records with a practice address in Illinois. 77% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2001 · median 2001 among the 556 with a school on file
- Record last updated2013 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in Illinois
There are 995 orthopaedic surgery physician records in Illinois.
All 995 in Illinois → Every provider in Chicago → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Jeffrey AckermanChicago, IL 606181861621351
- Michael Chioffe, M.D.Chicago, IL 606181457582231
- Peter CirrincioneChicago, IL 606181053014779
- Joseph D'Silva, MDChicago, IL 606181871547224
- Theodore Fisher, M.D.Chicago, IL 606181043235781
- Daniel Newman, MDChicago, IL 606181902850910
- Scott Rubinstein, MDChicago, IL 606181154374809
- Richard Egwele, M.D.Chicago, IL 606171306991310
Common questions
What is Ari J. Kaz, MD's NPI number?
Ari J. Kaz, MD's National Provider Identifier (NPI) is 1013940782, issued on Jul 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ari J. Kaz, MD located?
The NPPES record lists a practice address at 2923 N California Ave, Chicago, IL, 60618. Phone: (773) 777-9900. Providers update this record themselves, so call before visiting.
How can I verify Ari J. Kaz, MD's license?
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 Ari J. Kaz, MD prescribe under Medicare Part D?
In 2024, Ari J. Kaz, MD had 16 Medicare Part D claims for 13 beneficiaries; the average among orthopaedic surgery physician prescribers was 346. Part D covers Medicare prescriptions only.
What is Ari J. Kaz, MD's MIPS final score?
The 2023 MIPS final score is 72.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.