Dr. Justin M. Lay , DO
Pediatrics • Madison, MS
161 Montgomery St Ste D
Madison, MS 391101118
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
Practice Location & Contact Primary Location
161 Montgomery St Ste D
Madison, MS 391101118
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Pediatrics: NPPES taxonomy is a reported classification, not proof of board certification.
Open Payments general payments, program year 2024
All general payments: $720.24 across 35 records.
By nature of payment
- Food and Beverage: $720.24 across 35 records.
Reporting-company totals (3 largest of 11)
- IRONSHORE PHARMACEUTICALS INC.: $292.29 across 14 records.
- Corium, LLC: $109.62 across 6 records.
- Sanofi Pasteur Inc.: $79.04 across 3 records.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2024 (published June 30, 2026).
NPI first issued
2015
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Enrolled in Medicare (PECOS)
Dr. Lay has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.
It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Can order Medicare-covered services
CMS lists Dr. Lay as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.
Medicare pays for these items and services only when they are ordered by an eligible clinician.
What this does not show: Can order Medicare-covered services
It does not mean the clinician offers these services directly.
Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.
Compared with the same specialty in Madison and Mississippi
8 active clinicians are listed under Pediatrics with a practice address in Madison, MS (418 in Mississippi).
Addresses are self-reported to NPPES and may be out of date.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
-
Industry payments (Open Payments)
Industry payments (Open Payments) went from $261.38 in 2020 to $720.24 in 2024.
- 2020: $261.38
- 2021: $230.86
- 2022: $470.47
- 2023: $436.26
- 2024: $720.24
Sources: CMS Open Payments (2024), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2024 (payments made January 1 – December 31, 2024): 35 records totaling $720.24.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
BEYFORTUS | General | $31.54 |
| Regeneron Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
|
DUPIXENT | General | $27.25 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
MENQUADFI | General | $26.82 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $23.30 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
GARDASIL | General | $23.14 |
| ACADIA Pharmaceuticals Inc |
Food and Beverage
In-kind items and services
|
DAYBUE | General | $22.77 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $22.76 |
| ACADIA Pharmaceuticals Inc |
Food and Beverage
In-kind items and services
|
DAYBUE | General | $22.62 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $22.46 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $22.46 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $22.01 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $21.96 |
| AstraZeneca Pharmaceuticals LP |
Food and Beverage
In-kind items and services
|
FLUMIST QUADRIVALENT | General | $21.77 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $21.73 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $21.56 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $21.49 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $21.43 |
| Corium, LLC |
Food and Beverage
In-kind items and services
|
Azstarys | General | $20.73 |
| Sanofi Pasteur Inc. |
Food and Beverage
In-kind items and services
|
BEYFORTUS | General | $20.68 |
| Merck Sharp & Dohme LLC |
Food and Beverage
In-kind items and services
|
GARDASIL | General | $20.62 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $20.59 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $20.26 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $20.19 |
| IRONSHORE PHARMACEUTICALS INC. |
Food and Beverage
Cash or cash equivalent
|
JORNAY PM | General | $19.97 |
| Pfizer Inc. |
Food and Beverage
In-kind items and services
|
TRUMENBA | General | $19.88 |
(top 25 shown)
Source: CMS Open Payments, program year 2024, released June 30, 2026.
Specialties & License Numbers Reported to NPPES
Self-certified to NPPES: 2025-09-03NUCC Taxonomy Code: 208000000X
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
Medicare (PECOS) Enrollment & Ordering Eligibility
Source: CMS PECOSORDER AND REFERRING ONLY - PEDIATRIC MEDICINE
I20150901002963
MS
1557677861
Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.
Career & Practice History Timeline
Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status
Registered at 161 MONTGOMERY ST STE D, MADISON, MS 391101118 (Tel: 7693005200)
Registered at 161 MONTGOMERY ST STE D, MADISON, MS 391101118 (Tel: 7693005220)
Registered at 7726 OLD CANTON ROAD, MADISON, MS 39110 (Tel: 6013628776)
Registered at 1867 CRANE RIDGE DR., STE 101B, JACKSON, MS 39216 (Tel: 6013628776)
Pediatrics (license number reported to NPPES: MS 25783)
NPI status registered as active in NPPES database
Registered at 2500 N STATE ST, DEPARTMENT OF PEDIATRICS, JACKSON, MS 392164500 (Tel: 6018158489)
Registered at 2500 N STATE ST, DEPARTMENT OF PEDIATRICS, JACKSON, MS 392164500 (Tel: 6018158489)
Recorded as JUSTIN LAY, D.O.
Student in an Organized Health Care Education/Training Program
First registered as active Individual Practitioner in NPPES Database.
NPI Administrative Meta
Other Pediatrics Specialists in Madison
Healthcare providers in MadisonMailing Address
161 Montgomery St Ste D
Madison, MS 391101118
Phone: 7693005220