Crystal A. Lacy
Family Nurse Practitioner · Willowbrook, IL
Crystal A. Lacy is a family nurse practitioner with a practice address in Willowbrook, Illinois, and NPI 1194494823, issued on Sep 7, 2021. Check the license (Illinois 209023978, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Crystal A. Lacy
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License numbers
- 209023978 IL
209.023978 IL
Self-reported in NPPES; status is on the state search - Practice location
- 40 75TH St, Willowbrook, IL 60527
- Phone
- (630) 581-5372
- Enumerated
- Sep 7, 2021
- Record last updated
- Nov 12, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220127002510); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 7,639 in Illinois → Look up another NPI →
Also registered at 40 75TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Abutaha, APNFamily Nurse Practitioner1093456568
- Amy Altenberger, FNPFamily Nurse Practitioner1881374700
- George Antonopoulos, APRNFamily Nurse Practitioner1326660069
- Nimmy Baby, FNPFamily Nurse Practitioner1508502980
- Elizabeth BarnesNurse Practitioner1639918923
- Kathleen Barter, FNP-BCFamily Nurse Practitioner1225923857
Verify Crystal A. Lacy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 209023978Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average family nurse practitioner in 2024
167 Medicare Part D claims for 35 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Sertraline Hcl30 claims
- Risperidone23 claims
- Donepezil Hcl21 claims
- Escitalopram Oxalate21 claims
- Olanzapine15 claims
- Hydroxyzine Hcl14 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
- Yusuf Salah LLCBridgeview, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Crystal A. Lacy among 7,639 family nurse practitioner records in Illinois
Crystal A. Lacy is one of 7,639 family nurse practitioner 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 2021, is newer than 65% of them.
- NPI issued2021 · 65% of these records are older, 28% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2020 · median 2018 among the 4,778 with a school on file
- Record last updated2021 · 39% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
88 family nurse practitioner records list a practice address in Willowbrook
They are 88 of the 453 NPPES records with a practice address in Willowbrook, and 7,639 family nurse practitioner records in Illinois.
All 7,639 in Illinois → Every provider in Willowbrook → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Krystina Blas, FNPBurr Ridge, IL 605271790137180
- Susy Cherian, DNP,MSN, RN, FNP-BCBurr Ridge, IL 605271962936435
- Dyenina Donnelly, FNP-BCBurr Ridge, IL 605271144687625
- Krista Haun, FNPWillowbrook, IL 605271770902280
- Shannon HoudaWillowbrook, IL 605271811322027
- Tiffany Migon, APNBurr Ridge, IL 605271609225358
- Sheeba Murphy, FNP-BCBurr Ridge, IL 605271750806923
- Gina Neis, APNBurr Ridge, IL 605271558714212
Common questions
What is Crystal A. Lacy's NPI number?
Crystal A. Lacy's National Provider Identifier (NPI) is 1194494823, issued on Sep 7, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Crystal A. Lacy located?
The NPPES record lists a practice address at 40 75TH St, Willowbrook, IL, 60527. Phone: (630) 581-5372. Providers update this record themselves, so call before visiting.
How can I verify Crystal A. Lacy's license?
NPPES lists Illinois license number 209023978, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
How much does Crystal A. Lacy prescribe under Medicare Part D?
In 2024, Crystal A. Lacy had 167 Medicare Part D claims for 35 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.