Ada Lemus, FNP
NPI 1821695487 · Psychiatric/Mental Health Nurse Practitioner · Berwyn, IL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ada Lemus, FNP is a Psychiatric/Mental Health Nurse Practitioner provider in Berwyn, IL (NPI 1821695487).
Provider details
- NPI number
- 1821695487
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 209021679 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
5 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 43 | 15 |
| Losartan Potassium | 27 | — |
| Metformin Hcl | 25 | — |
| Empagliflozinbrand: Jardiance | 24 | — |
| Lisinopril | 19 | — |
| Hydrochlorothiazide | 15 | — |
| Amlodipine Besylate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$682 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (4)
- 2355 S Western AveChicago, IL 60608-3837Phone: (773) 254-1400Fax: (773) 650-1218
- 1276 N Clybourn AveChicago, IL 60610-2089Phone: (312) 337-1073
- 966 W 21st StChicago, IL 60608-4511Phone: (773) 254-1400Fax: (312) 829-6842
- 371 W Northwest HwyPalatine, IL 60067-2414Phone: (847) 443-5588
Registry dates
- Enumerated
- 2020-10-07
- Last updated
- 2026-04-22
- Certified
- 2026-04-22
Frequently asked questions
- What is Ada Lemus's NPI number?
- Ada Lemus's National Provider Identifier (NPI) is 1821695487, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ada Lemus's specialty?
- Ada Lemus is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ada Lemus located?
- Ada Lemus's practice location on file with NPPES is 6447 Cermak Rd, Berwyn, IL 60402-2311.
- What is Ada Lemus's phone number?
- The practice phone number listed in the NPPES registry for Ada Lemus is (773) 254-1400.
- Does Ada Lemus accept Medicare?
- Ada Lemus is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ada Lemus's NPI active?
- Yes — Ada Lemus's NPI (1821695487) is active in the NPPES registry as of the last update on 2026-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.