Elsy A. Devassy, M.D.
Specialist · Lockport, IL
Elsy A. Devassy, M.D. is a specialist with a practice address in Lockport, Illinois, and NPI 1417950783, issued on May 31, 2005. Check the license (Illinois 036063297, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Elsy A. Devassy
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- 036063297 IL
Self-reported in NPPES; status is on the state search - Practice location
- 16612 W 159TH St, Lockport, IL 60441
- Phone
- (815) 588-3900
- Enumerated
- May 31, 2005
- Record last updated
- Jan 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (815) 588-1414
- Medicaid ID
- 036063297 IL
- Medicare enrollment
- Enrolled (PECOS I20040609000308); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest specialist records → All 1,154 in Illinois → Look up another NPI →
Verify Elsy A. Devassy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 036063297Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
19% fewer Medicare Part D claims than the average specialist in 2024
1,119 Medicare Part D claims for 101 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.
Most prescribed
- Alprazolam103 claims
- Escitalopram Oxalate87 claims
- Aripiprazole66 claims
- Fluoxetine Hcl65 claims
- Lorazepam64 claims
- Clonazepam63 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
- E A Devassy MD And Associates SCLockport, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Elsy A. Devassy among 1,154 specialist records in Illinois
Elsy A. Devassy, M.D. is one of 1,154 specialist records with a practice address in Illinois. 19% 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, 92% newer
- In a Medicare fileYes · 19% of these records are
- In the CMS Doctors and Clinicians fileYes · 11% of these records are
- Graduated1974 · median 1988 among the 127 with a school on file
- Record last updated2014 · 84% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in Illinois
There are 1,154 specialist records in Illinois.
All 1,154 in Illinois → Every provider in Lockport → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- John Bakouris, ATC, CSCSLockport, IL 604411053383562
- Joseph Jelinek, OTR/LHines, IL 604411710068580
- Stacey Bethune, MS, ATCBolingbrook, IL 604401063823706
- Jessie HansenBolingbrook, IL 604401992179972
- Pamela Heady, MTBolingbrook, IL 604401407027360
- Wallace Vinson, RSABolingbrook, IL 604401235360959
- Dominique ClaiborneMatteson, IL 604431578257218
- Iulia Enacopol, M.D.Lemont, IL 604391447452917
Common questions
What is Elsy A. Devassy, M.D.'s NPI number?
Elsy A. Devassy, M.D.'s National Provider Identifier (NPI) is 1417950783, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Elsy A. Devassy, M.D. located?
The NPPES record lists a practice address at 16612 W 159TH St, Lockport, IL, 60441. Phone: (815) 588-3900. Providers update this record themselves, so call before visiting.
How can I verify Elsy A. Devassy, M.D.'s license?
NPPES lists Illinois license number 036063297, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Elsy A. Devassy, M.D. prescribe under Medicare Part D?
In 2024, Elsy A. Devassy, M.D. had 1,119 Medicare Part D claims for 101 beneficiaries; the average among specialist prescribers was 1,380. 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.