Peter D. Cladis, M.D.
Family Medicine Physician · Geneva, IL
Peter D. Cladis, M.D. is a family medicine physician with a practice address in Geneva, Illinois, and NPI 1467452755, issued on Jul 28, 2005. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Peter D. Cladis
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- Practice location
- 2425 Fargo Blvd, Geneva, IL 60134
- Phone
- (630) 232-2200
- Enumerated
- Jul 28, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (630) 232-1940
- Medicare enrollment
- Enrolled (PECOS I20100816000265); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 1980
- 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 2425 Fargo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Armbrust, DOFamily Medicine Physician1548623572
- Warren Beeh, M.D.Family Medicine Physician1326048612
- Stacey Brown, PAPhysician Assistant1699940999
- Melissa Buckley, PT, MSPT, DPTPhysical Therapist1578604757
- Katherine Fackler-Chapman, M.D.Family Medicine Physician1528068988
- Michael Fremgen, M.D.Family Medicine Physician1770583072
Verify Peter D. Cladis 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
96% more Medicare Part D claims than the average family medicine physician in 2024
6,940 Medicare Part D claims for 967 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 32 claims were for opioids.
Most prescribed
- Atorvastatin Calcium763 claims
- Levothyroxine Sodium658 claims
- Lisinopril316 claims
- Metoprolol Succinate275 claims
- Omeprazole194 claims
- Hydrochlorothiazide186 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 MIPS final score for 2023 (Medicare payment program): 94.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Central Dupage Physician GroupWheaton, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Peter D. Cladis among 6,215 family medicine physician records in Illinois
Peter D. Cladis, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1980 · median 2006 among the 3,714 with a school on file
- Record last updated2026 · 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).
49 family medicine physician records list a practice address in Geneva
They are 49 of the 1,023 NPPES records with a practice address in Geneva, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Geneva → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Warren Beeh, M.D.Geneva, IL 601341326048612
- Natalie Choi, MDGeneva, IL 601341154375582
- Thomas Eng, D.O.Geneva, IL 601341639277551
- Katherine Fackler-Chapman, M.D.Geneva, IL 601341528068988
- Christopher Fahey, M.D.Geneva, IL 601341306926415
- Michael Fremgen, M.D.Geneva, IL 601341770583072
- Thomas Hazel, M.D.Geneva, IL 601341730189176
- Viquar Khan-Mundozie, MDGeneva, IL 601341972671923
Common questions
What is Peter D. Cladis, M.D.'s NPI number?
Peter D. Cladis, M.D.'s National Provider Identifier (NPI) is 1467452755, issued on Jul 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Peter D. Cladis, M.D. located?
The NPPES record lists a practice address at 2425 Fargo Blvd, Geneva, IL, 60134. Phone: (630) 232-2200. Providers update this record themselves, so call before visiting.
How can I verify Peter D. Cladis, M.D.'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 Peter D. Cladis, M.D. prescribe under Medicare Part D?
In 2024, Peter D. Cladis, M.D. had 6,940 Medicare Part D claims for 967 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Peter D. Cladis, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.1 of 100. 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.