Alec Block
Radiation Oncology Physician · Maywood, IL
Alec Block is a radiation oncology physician with a practice address in Maywood, Illinois, and NPI 1124375274, issued on Aug 8, 2012. Check the license (Illinois 036142638, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Alec Block
- Primary taxonomy
- Radiation Oncology Physician 2085R0001X
- License numbers
- 036142638 IL
125061878 IL
Self-reported in NPPES; status is on the state search - Practice location
- 2160 South First Ave, Maywood, IL 60153
- Phone
- (708) 216-2729
- Enumerated
- Aug 8, 2012
- Record last updated
- Apr 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (708) 216-5924
- Medicare enrollment
- Enrolled (PECOS I20170622000071); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest radiation oncology physician records → All 277 in Illinois → Look up another NPI →
Also registered at 2160 South First Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Colleen Blackburn, APRN, CNPAdult Health Nurse Practitioner1154674380
- Rohit Chappidi, M.D.Hospitalist Physician1487911129
- Michael Diggs, MDAnesthesiology Physician1093976250
- Harrison Le, MDAnesthesiology Physician1538153168
- Kelly Moyer, M.S., C.G.C.Genetic Counselor (M.S.)1609852722
- Kashif RizviDentist1558627075
Verify Alec Block 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 036142638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average radiation oncology physician in 2024
177 Medicare Part D claims for 54 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. 77 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen64 claims
- Lidocaine Hcl Viscous51 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.
One hospital affiliation
- Loyola University Medical CenterMaywood, IL · Acute Care Hospitals2 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Alec Block among 277 radiation oncology physician records in Illinois
Alec Block is one of 277 radiation oncology 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 2012, is newer than 70% of them.
- NPI issued2012 · 70% of these records are older, 27% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2012 · median 2004 among the 184 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Radiation Oncology Physician providers in Illinois
There are 277 radiation oncology physician records in Illinois.
All 277 in Illinois → Every provider in Maywood → Radiation Oncology Physician nationwide →
The 8 radiation oncology physician records with the nearest ZIP codes
- Menal BhandariMaywood, IL 601531134895758
- Dennis Chan, MDMaywood, IL 601531679005243
- Anupama Chundury, M.D., M.S.Maywood, IL 601531407199250
- Bahman Emami, MDMaywood, IL 601531588641450
- Matthew Harkenrider, M.D.Maywood, IL 601531952577967
- Courtney Hentz, MDMaywood, IL 601531629495825
- Samar Khan, MSMaywood, IL 601531588321707
- Nagendra Koneru, M.D.Maywood, IL 601531508989260
Common questions
What is Alec Block's NPI number?
Alec Block's National Provider Identifier (NPI) is 1124375274, issued on Aug 8, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Alec Block located?
The NPPES record lists a practice address at 2160 South First Ave, Maywood, IL, 60153. Phone: (708) 216-2729. Providers update this record themselves, so call before visiting.
How can I verify Alec Block's license?
NPPES lists Illinois license number 036142638, 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 Alec Block prescribe under Medicare Part D?
In 2024, Alec Block had 177 Medicare Part D claims for 54 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.