Patrick S. Lay, MD
Internal Medicine Physician · Skokie, IL
Patrick S. Lay, MD is an internal medicine physician with a practice address in Skokie, Illinois, and NPI 1639238405, issued on Dec 7, 2006. Check the license (Illinois 036-092840, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Patrick S. Lay
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 036-092840 IL
Self-reported in NPPES; status is on the state search - Practice location
- 9977 Woods Dr, Skokie, IL 60077
- Phone
- (847) 663-8350
- Enumerated
- Dec 7, 2006
- Record last updated
- Oct 6, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (847) 663-1017
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Also registered at 9977 Woods Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nia Abraham, PA-CPhysician Assistant1689141806
- Michael Abromaitis, RDNRegistered Dietitian1710402797
- Jessie Alexander, APNNurse Practitioner1770096950
- Michael Anderson, APNNurse Practitioner1699459636
- Mary Andreoni, MSN,NP-C,CDEAdult Health Nurse Practitioner1467694034
- Eamann Ayyad, APN-CNPNurse Practitioner1083171813
Verify Patrick S. 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 036-092840Check 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% more Medicare Part D claims than the average internal medicine physician in 2024
6,267 Medicare Part D claims for 619 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 59 claims were for opioids.
Most prescribed
- Atorvastatin Calcium797 claims
- Amlodipine Besylate548 claims
- Losartan Potassium457 claims
- Metformin Hcl348 claims
- Levothyroxine Sodium191 claims
- Tamsulosin Hcl181 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.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Patrick S. Lay among 7,238 internal medicine physician records in Illinois
Patrick S. Lay, MD is one of 7,238 internal medicine physician records with a practice address in Illinois. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 61% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2020 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
65 internal medicine physician records list a practice address in Skokie
They are 65 of the 2,210 NPPES records with a practice address in Skokie, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Skokie → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alla Brodech, MDSkokie, IL 600771225076953
- Leah Durst, M.D.Skokie, IL 600771356355465
- Matthew Fischer, MDSkokie, IL 600771750345302
- Kathy Fisher, MDSkokie, IL 600771396703997
- Anatoly Gorovits, M.D.Skokie, IL 600771790760965
- Cliff Ireland, D.O.Skokie, IL 600771952365116
- Vandana Jain, MDSkokie, IL 600771730143728
- Gregory Kaczmarek, MDSkokie, IL 600771629032958
Common questions
What is Patrick S. Lay, MD's NPI number?
Patrick S. Lay, MD's National Provider Identifier (NPI) is 1639238405, issued on Dec 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Patrick S. Lay, MD located?
The NPPES record lists a practice address at 9977 Woods Dr, Skokie, IL, 60077. Phone: (847) 663-8350. Providers update this record themselves, so call before visiting.
How can I verify Patrick S. Lay, MD's license?
NPPES lists Illinois license number 036-092840, 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 Patrick S. Lay, MD prescribe under Medicare Part D?
In 2024, Patrick S. Lay, MD had 6,267 Medicare Part D claims for 619 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Patrick S. Lay, MD's MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.