Dr. Nahayo Esperant-Hilaire, MD
- Medicare services, 2024
- 191
- Medicare patients, 2024
- 123
- Part D claims, 2024
- 14
- Hospital affiliations
- 5
- Industry payments
- $138
- Practice address
- 4500 Memorial Drive, Belleville, IL 62226
- Practice phone
- Call (618) 233-7750
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Esperant-Hilaire'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. Nahayo Esperant-Hilaire is a neurologist in Belleville, Illinois
Dr. Esperant-Hilaire practices at Memorial Hospital in Belleville in Belleville, Illinois, part of BJC Health.
Dr. Esperant-Hilaire's NPI, 1235766148, was assigned on March 23, 2020. Dr. Esperant-Hilaire holds Illinois license 036167121.
- NPI
- 1235766148NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800210071
- NPI enumeration date
- March 23, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 233-7750
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nahayo Esperant-Hilaire practices at Memorial Hospital in Belleville in Belleville, Illinois
Dr. Esperant-Hilaire's primary practice is Memorial Hospital in Belleville, at 4500 Memorial Drive, Belleville, IL 62226 in St. Clair County. The practice phone is (618) 233-7750.
- Memorial Hospital in Belleville4500 Memorial Drive, Belleville, IL 62226 · St. Clair CountyPhone(618) 233-7750
Source: Dmand AI Affiliation Data
Dr. Nahayo Esperant-Hilaire is affiliated with 5 sites of care and 3 medical groups
Dr. Esperant-Hilaire's primary practice is Memorial Hospital in Belleville in Belleville, Illinois, part of BJC Health. Dr. Esperant-Hilaire is also affiliated with Barnes-Jewish Hospital. The medical group on file is BJC Medical Group. Dmand AI also links Dr. Esperant-Hilaire to 3 more hospitals and 2 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nahayo Esperant-Hilaire's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Esperant-Hilaire practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Memorial Hospital in Belleville | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nahayo Esperant-Hilaire is one of 822 neurologists in Illinois
Neurology is Dr. Esperant-Hilaire's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Esperant-Hilaire is licensed in Illinois.
Specialties and state licenses
- Neurology, IllinoisPrimary
Neurologists near Dr. Esperant-Hilaire
Counts of neurologists 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. Nahayo Esperant-Hilaire billed Medicare for 191 services in 2024
CMS data shows 191 Medicare services from Dr. Esperant-Hilaire across 3 procedure codes in 2024, for 123 Medicare patients. Medicare paid $15,700 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Esperant-Hilaire compared with the Illinois median for neurologists, 2024
- Dr. Esperant-Hilaire
- Illinois median
- Medicare services
- 191vs 40152% below
- Medicare patients
- 123vs 22545% below
- Part D claims
- 13vs 31896% below
Medians across 747 neurologists in Illinois with Dmand AI profiles that report each measure.
Dr. Esperant-Hilaire's most billed Medicare procedure codes, 2024
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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Nahayo Esperant-Hilaire treated 123 Medicare patients in 2024, average age 74
CMS counts 123 Medicare patients who saw Dr. Esperant-Hilaire in 2024. The largest group is 75 to 84, with 49 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 32% are also on Medicaid. Their average risk score is 2.12, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Esperant-Hilaire's median patient age at 72, with 57% women.
Dr. Esperant-Hilaire's Medicare patients by age, 2024
Dr. Esperant-Hilaire's Medicare patients by sex, 2024
- Women6553%
- Men5847%
Chronic conditions among Dr. Esperant-Hilaire's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis70%
- Stroke or TIA63%
- Diabetes53%
- Mood disorders51%
- Chronic kidney disease50%
- Depression49%
Share of Medicare patients with each condition. A patient can have several.
Dr. Esperant-Hilaire's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 72
Patient panel by sex, all payers
- Women57%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Nahayo Esperant-Hilaire wrote 14 Medicare Part D claims in 2024
In 2024, Dr. Esperant-Hilaire wrote 14 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $192 in total drug cost.
Dr. Esperant-Hilaire's most prescribed drugs by claims, 2023
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Nahayo Esperant-Hilaire takes part in Medicare
Dr. Esperant-Hilaire accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nahayo Esperant-Hilaire received $138 in industry payments from 2024 to 2025
CMS Open Payments shows 3 general payments to Dr. Esperant-Hilaire from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $121.
General payments to Dr. Esperant-Hilaire by program year, 2024 to 2025
Companies that paid Dr. Esperant-Hilaire the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Nahayo Esperant-Hilaire'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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. Nahayo Esperant-Hilaire
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. Nahayo Esperant-Hilaire's NPI number?
Dr. Nahayo Esperant-Hilaire's NPI number is 1235766148. It was assigned on March 23, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Nahayo Esperant-Hilaire?
Dr. Nahayo Esperant-Hilaire is a neurologist in Belleville, Illinois. The primary specialty in the NPI Registry is Neurology Physician (taxonomy code 2084N0400X).
Where does Dr. Nahayo Esperant-Hilaire practice?
Dr. Esperant-Hilaire practices at 4500 Memorial Drive, Belleville, IL 62226. Dr. Esperant-Hilaire's primary practice is Memorial Hospital in Belleville in Belleville, Illinois, part of BJC Health. Dmand AI also links Dr. Esperant-Hilaire to 3 hospitals and 2 medical groups.
What is Dr. Nahayo Esperant-Hilaire's office phone number?
The practice phone on file for Dr. Esperant-Hilaire is (618) 233-7750.
What is Dr. Nahayo Esperant-Hilaire's medical license number?
Dr. Esperant-Hilaire holds Illinois license 036167121.
Which hospitals is Dr. Nahayo Esperant-Hilaire affiliated with?
Dr. Esperant-Hilaire practices at Memorial Hospital in Belleville in Belleville, Illinois. Dr. Esperant-Hilaire is also affiliated with Barnes-Jewish Hospital. Dmand AI links Dr. Esperant-Hilaire to 3 more hospitals.
What medical group is Dr. Nahayo Esperant-Hilaire part of?
Dr. Esperant-Hilaire is linked to BJC Medical Group. Dmand AI links Dr. Esperant-Hilaire to 2 more medical groups.
Does Dr. Nahayo Esperant-Hilaire accept Medicare?
Yes. CMS data shows Dr. Esperant-Hilaire billed Medicare for 191 services in 2024, and Dr. Esperant-Hilaire accepts Medicare assignment.
How many Medicare patients does Dr. Nahayo Esperant-Hilaire see?
CMS counts 123 Medicare patients who saw Dr. Esperant-Hilaire in 2024, with an average age of 74.
What services does Dr. Nahayo Esperant-Hilaire bill to Medicare?
In 2024, Dr. Esperant-Hilaire's most billed Medicare services were hospital inpatient care (99222), hospital inpatient care (99232) and hospital inpatient care (99231).
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What drugs does Dr. Nahayo Esperant-Hilaire prescribe most?
In 2023 Medicare Part D data, Dr. Esperant-Hilaire's most prescribed drugs by claims were Carbidopa-Levodopa.
Has Dr. Nahayo Esperant-Hilaire received payments from drug or device companies?
CMS Open Payments shows $138 in general payments to Dr. Esperant-Hilaire from 2 companies from 2024 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Nahayo Esperant-Hilaire been practicing?
Dr. Esperant-Hilaire graduated from medical school in 2019, 7 years ago.
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