Dr. Jay D. Willey, MD
- Medicare services, 2017
- 515
- Part D claims, 2018
- 24
- Industry payments
- $224
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 1 Westbrook Corporate Ctr, Westchester, IL 60154
- Practice phone
- Call (309) 527-2700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
El Paso Health Care Center
Westchester, Illinois
Find Dr. Willey's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Jay D. Willey is an internist in Westchester, Illinois
Dr. Willey practices at El Paso Health Care Center in Westchester, Illinois.
Dr. Willey's NPI, 1891714531, was assigned on July 19, 2006. Dr. Willey holds Missouri license 2010018448.
- NPI
- 1891714531NPI Registry (opens in a new tab)
- NPI enumeration date
- July 19, 2006
- NPI status
- Active
- Practice phone
- (309) 527-2700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Jay D. Willey practices at El Paso Health Care Center in Westchester, Illinois
Dr. Willey's primary practice is El Paso Health Care Center, at 1 Westbrook Corporate Ctr, Westchester, IL 60154 in Cook County. The practice phone is (309) 527-2700.
- El Paso Health Care Center1 Westbrook Corporate Ctr, Westchester, IL 60154 · Cook CountyPhone(309) 527-2700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Jay D. Willey is affiliated with 2 sites of care and 1 medical group
Dr. Willey's primary practice is El Paso Health Care Center in Westchester, Illinois. Dmand AI also links Dr. Willey to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jay D. Willey's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Willey practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| El Paso Health Care Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jay D. Willey is one of 5,652 internists in Illinois
Internal medicine is Dr. Willey's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Willey's licenses on file in 2 states: Missouri and Illinois.
Specialties and state licenses
- Internal medicine, MissouriPrimary
- Illinois license
Internists near Dr. Willey
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Jay D. Willey billed Medicare for 515 services in 2017
CMS data shows 515 Medicare services from Dr. Willey across 6 procedure codes in 2017. Medicare paid $26,487 for them. Every service was in an office.
Dr. Willey's Medicare services by type, 2016 to 2017
- 2016
- 2017
- Office and hospital visits
- 2016: 9882017: 45354%
- Other services
- 2016: 1372017: 5064%
- Tests and treatments
- 2016: 822017: 1285%
- Imaging
- 2016: 212017: 0100%
Dr. Willey compared with the Illinois median for internists, 2017
- Dr. Willey
- Illinois median
- Medicare services
- 515vs 5669% below
- Part D claims
- 24vs 28492% below
Medians across 5,192 internists in Illinois with Dmand AI profiles that report each measure.
Dr. Willey's most billed Medicare procedure codes, 2017
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Willey and other internists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jay D. Willey's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Dr. Willey's median patient age at 65, with 63% women.
Dr. Willey's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women63%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Jay D. Willey wrote 24 Medicare Part D claims in 2018
In 2018, Dr. Willey wrote 24 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $1,390 in total drug cost. In 2017, CMS named 4,101 claims across 110 drugs.
Dr. Willey's most prescribed drugs by claims, 2018
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2017 to 2018
- 2017
- 2018
- Claims for drugs CMS names
- 2017: 4,1012018: 2499%
Drugs named by CMS: 2 in 2018, 110 in 2017.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Jay D. Willey received $224 in industry payments from 2016 to 2017
CMS Open Payments shows 15 general payments to Dr. Willey from 7 drug and device companies from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $85.
General payments to Dr. Willey by program year, 2016 to 2017
Companies that paid Dr. Willey the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jay D. Willey's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Jay D. Willey
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Jay D. Willey's NPI number?
Dr. Jay D. Willey's NPI number is 1891714531. It was assigned on July 19, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Jay D. Willey?
Dr. Jay D. Willey is an internist in Westchester, Illinois. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jay D. Willey practice?
Dr. Willey practices at 1 Westbrook Corporate Ctr, Westchester, IL 60154. Dr. Willey's primary practice is El Paso Health Care Center in Westchester, Illinois. Dmand AI also links Dr. Willey to 1 group practice or clinic and 1 medical group.
What is Dr. Jay D. Willey's office phone number?
The practice phone on file for Dr. Willey is (309) 527-2700.
What is Dr. Jay D. Willey's medical license number?
Dr. Willey holds Missouri license 2010018448, one of the licenses on file in 2 states.
Which states has Dr. Jay D. Willey been licensed in?
Dmand AI has state licenses on file for Dr. Willey in Missouri and Illinois.
Does Dr. Jay D. Willey accept Medicare?
Yes. CMS data shows Dr. Willey billed Medicare for 515 services in 2017.
What services does Dr. Jay D. Willey bill to Medicare?
In 2017, Dr. Willey's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0439).
What drugs does Dr. Jay D. Willey prescribe most?
In 2018 Medicare Part D data, Dr. Willey's most prescribed drugs by claims were Esomeprazole Magnesium and Amlodipine Besylate.
Has Dr. Jay D. Willey received payments from drug or device companies?
CMS Open Payments shows $224 in general payments to Dr. Willey from 7 companies from 2016 to 2017. The largest total came from Amgen Inc.
How long has Dr. Jay D. Willey been practicing?
Dr. Willey's NPI was assigned in 2006.
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