Caleb Joseph Lay, MD
Family Medicine Physician · Springfield, IL
Caleb Joseph Lay, MD is a family medicine physician with a practice address in Springfield, Illinois, and NPI 1669211801, issued on May 20, 2024. Check the license (Illinois 125083259, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Caleb Joseph Lay
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 125083259 IL
Self-reported in NPPES; status is on the state search - Practice location
- PO Box 19670, Springfield, IL 62794
- Phone
- (217) 757-8197
- Enumerated
- May 20, 2024
- Record last updated
- May 20, 2024
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Verify Caleb Joseph Lay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 125083259Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
110 Medicare Part D claims for 29 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of 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.
Caleb Joseph Lay among 6,215 family medicine physician records in Illinois
Caleb Joseph Lay, MD is one of 6,215 family medicine physician 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 2024, is newer than 94% of them.
- NPI issued2024 · 94% of these records are older, 4% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2024 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
151 family medicine physician records list a practice address in Springfield
They are 151 of the 4,997 NPPES records with a practice address in Springfield, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Springfield → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- David Graham, MDSpringfield, IL 627941386759264
- Ashley Macdonald, D.O.Springfield, IL 627941053750851
- John Wang, DOSpringfield, IL 627941558511519
- David Collins, D.O.Centralia, IL 628011427399534
- Usha Sadanala, MDCentralia, IL 628011326308248
- Venerio Santos, MDCentralia, IL 628011568530806
- Niranjan Shrestha, M.D., FAAFPCentralia, IL 628011508031758
- Balavittal Varanasi, M.D.Centralia, IL 628011366419210
Common questions
What is Caleb Joseph Lay, MD's NPI number?
Caleb Joseph Lay, MD's National Provider Identifier (NPI) is 1669211801, issued on May 20, 2024. An NPI identifies a provider in billing; it is not a license.
Where is Caleb Joseph Lay, MD located?
The NPPES record lists a practice address at PO Box 19670, Springfield, IL, 62794. Phone: (217) 757-8197. Providers update this record themselves, so call before visiting.
How can I verify Caleb Joseph Lay, MD's license?
NPPES lists Illinois license number 125083259, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Caleb Joseph Lay, MD prescribe under Medicare Part D?
In 2024, Caleb Joseph Lay, MD had 110 Medicare Part D claims for 29 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.