Cathy Evans Longos, DMD
Endodontics · Glen Carbon, IL
Cathy Evans Longos, DMD is an endodontics with a practice address in Glen Carbon, Illinois, and NPI 1114088812, issued on Dec 13, 2006. Check the license (Illinois 021001620, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cathy Evans Longos
- Credential
- DMD
- Primary taxonomy
- Endodontics 1223E0200X
- License numbers
- 021001620 IL
019021729 IL
Self-reported in NPPES; status is on the state search - Practice location
- 22A Glen ED Professional Park, Glen Carbon, IL 62034
- Phone
- (618) 656-7615
- Enumerated
- Dec 13, 2006
- Record last updated
- Jun 21, 2016 (not updated in 10 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest endodontics records → All 214 in Illinois → Look up another NPI →
Also registered at 22A Glen ED Professional Park
A shared address usually means a shared clinic or building; it does not show who employs whom.
- John Hatton, DMDEndodontics1396755120
Verify Cathy Evans Longos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 021001620Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average endodontics in 2024
87 Medicare Part D claims for 40 beneficiaries, against an average of 121 among the 4,119 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin60 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.
Cathy Evans Longos among 214 endodontics records in Illinois
Cathy Evans Longos, DMD is one of 214 endodontics records with a practice address in Illinois. 64% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 66% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · 0% of these records are
- Record last updated2016 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223E0200X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 endodontics records list a practice address in Glen Carbon
They are 4 of the 379 NPPES records with a practice address in Glen Carbon, and 214 endodontics records in Illinois.
All 214 in Illinois → Every provider in Glen Carbon → Endodontics nationwide →
The 8 endodontics records with the nearest ZIP codes
- Roxanne Benison, DMD MSGlen Carbon, IL 620341285651703
- John Hatton, DMDGlen Carbon, IL 620341396755120
- Kanika RyanGlen Carbon, IL 620341043934433
- Aaron Etcheson, D.M.D., M.S.Jerseyville, IL 620521346478062
- Edward Rose, DMD, MSMaryville, IL 620621992922876
- Vasiliki Kytridou, D.D.S.Alton, IL 620021194380741
- Marvin Speer, DDS MSAlton, IL 620021295724045
- Polymnia Tsotsis, DMDAlton, IL 620021083284160
Common questions
What is Cathy Evans Longos, DMD's NPI number?
Cathy Evans Longos, DMD's National Provider Identifier (NPI) is 1114088812, issued on Dec 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathy Evans Longos, DMD located?
The NPPES record lists a practice address at 22A Glen ED Professional Park, Glen Carbon, IL, 62034. Phone: (618) 656-7615. Providers update this record themselves, so call before visiting.
How can I verify Cathy Evans Longos, DMD's license?
NPPES lists Illinois license number 021001620, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Cathy Evans Longos, DMD prescribe under Medicare Part D?
In 2024, Cathy Evans Longos, DMD had 87 Medicare Part D claims for 40 beneficiaries; the average among endodontics prescribers was 121. 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.