Joseph A. Karas, DO
Family Medicine Physician · Lake Zurich, IL
Joseph A. Karas, DO is a family medicine physician with a practice address in Lake Zurich, Illinois, and NPI 1649629643, issued on Jun 9, 2016. Check the license (Illinois 036-152244, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Joseph A. Karas
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036-152244 IL
036152244 IL
125068101 IL
Self-reported in NPPES; status is on the state search - Practice location
- 350 Surryse RD Ste 100, Lake Zurich, IL 60047
- Phone
- (847) 438-2144
- Enumerated
- Jun 9, 2016
- Record last updated
- Apr 7, 2025
- Fax
- (847) 438-4654
- Medicare enrollment
- Enrolled (PECOS I20200706000432); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 350 Surryse RD Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Joseph A. Karas 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 036-152244Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
26% more Medicare Part D claims than the average family medicine physician in 2024
4,452 Medicare Part D claims for 424 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 50 claims were for opioids.
Most prescribed
- Atorvastatin Calcium438 claims
- Rosuvastatin Calcium190 claims
- Losartan Potassium167 claims
- Lisinopril160 claims
- Levothyroxine Sodium152 claims
- Metoprolol Succinate142 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
- Advocate Health And Hospitals CorporationLake Zurich, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph A. Karas among 6,215 family medicine physician records in Illinois
Joseph A. Karas, DO is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 70% of them.
- NPI issued2016 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2016 · median 2006 among the 3,714 with a school on file
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
12 family medicine physician records list a practice address in Lake Zurich
They are 12 of the 352 NPPES records with a practice address in Lake Zurich, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Lake Zurich → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Shad Ahmad, MDLake Zurich, IL 600471417941725
- Raymond Bianchi, M.D.Lake Zurich, IL 600471114916558
- Daniel Di Iorio, MD, DCLong Grove, IL 600471083662050
- Alison Drumm, MDLake Zurich, IL 600471063406346
- Tiffany Holland, M.D.Lake Zurich, IL 600471154551620
- Simran Kamboj, MDKildeer, IL 600471336473198
- John Kolb, MDLake Zurich, IL 600471326032632
- Vikaruddin Mohammed, M.D.Long Grove, IL 600471568664969
Common questions
What is Joseph A. Karas, DO's NPI number?
Joseph A. Karas, DO's National Provider Identifier (NPI) is 1649629643, issued on Jun 9, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Joseph A. Karas, DO located?
The NPPES record lists a practice address at 350 Surryse RD Ste 100, Lake Zurich, IL, 60047. Phone: (847) 438-2144. Providers update this record themselves, so call before visiting.
How can I verify Joseph A. Karas, DO's license?
NPPES lists Illinois license number 036-152244, 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 Joseph A. Karas, DO prescribe under Medicare Part D?
In 2024, Joseph A. Karas, DO had 4,452 Medicare Part D claims for 424 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.