Elsy Devassy, M.D.
NPI 1417950783 · Specialist · Lockport, IL
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Elsy Devassy, M.D. is a Specialist provider in Lockport, IL (NPI 1417950783).
Provider details
- NPI number
- 1417950783
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 036063297 (IL)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
275 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 172 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 56 | $92 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 47 | $186 |
Typical Medicare-allowed amounts for these services range $92–$186 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 26 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Alprazolam | 103 | 20 |
| Escitalopram Oxalate | 87 | 16 |
| Aripiprazole | 66 | 15 |
| Fluoxetine Hcl | 65 | — |
| Lorazepam | 64 | 13 |
| Clonazepam | 63 | 11 |
| Bupropion Hclbrand: Bupropion Xl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-05-31
- Last updated
- 2014-01-22
Frequently asked questions
- What is Elsy Devassy's NPI number?
- Elsy Devassy's National Provider Identifier (NPI) is 1417950783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Elsy Devassy's specialty?
- Elsy Devassy is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Elsy Devassy located?
- Elsy Devassy's practice location on file with NPPES is 16612 W 159th St, Lockport, IL 60441-8006.
- What is Elsy Devassy's phone number?
- The practice phone number listed in the NPPES registry for Elsy Devassy is (815) 588-3900.
- Does Elsy Devassy accept Medicare?
- Elsy Devassy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Elsy Devassy's NPI active?
- Yes — Elsy Devassy's NPI (1417950783) is active in the NPPES registry as of the last update on 2014-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.