Patrick Clarke Keller, MD
Hospitalist Physician · Lake Forest, IL
Patrick Clarke Keller, MD is a hospitalist physician with a practice address in Lake Forest, Illinois, and NPI 1972181188, issued on Mar 30, 2021. Check the license (Illinois 036167282, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Patrick Clarke Keller
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- 036167282 IL
125077372 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1000 N Westmoreland RD, Lake Forest, IL 60045
- Phone
- (847) 234-5600
- Enumerated
- Mar 30, 2021
- Record last updated
- Sep 26, 2025
- Fax
- (847) 535-7203
- Medicare enrollment
- Enrolled (PECOS I20240614003464); accepts Medicare assignment
- Medical or professional school
- University Of Kentucky College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 1,535 in Illinois → Look up another NPI →
Also registered at 1000 N Westmoreland RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mohammed Alzoubaidi, MBBS,MPHPulmonary Disease Physician1184880031
- Christina Anderson, M.D.Interventional Cardiology Physician1568846434
Verify Patrick Clarke Keller 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 036167282Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% fewer Medicare Part D claims than the average hospitalist physician in 2024
182 Medicare Part D claims for 61 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% 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.
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Patrick Clarke Keller among 1,535 hospitalist physician records in Illinois
Patrick Clarke Keller, MD is one of 1,535 hospitalist physician records with a practice address in Illinois. 92% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 86% of them.
- NPI issued2021 · 86% of these records are older, 7% newer
- In a Medicare fileYes · 92% of these records are
- In the CMS Doctors and Clinicians fileYes · 87% of these records are
- Graduated2021 · median 2013 among the 1,339 with a school on file
- Record last updated2025 · 32% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
36 hospitalist physician records list a practice address in Lake Forest
They are 36 of the 821 NPPES records with a practice address in Lake Forest, and 1,535 hospitalist physician records in Illinois.
All 1,535 in Illinois → Every provider in Lake Forest → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Arinola Awomolo, MDLake Forest, IL 600451982049458
- Mohamed Bayoumi, M.D.Lake Forest, IL 600451053758029
- Vikram Devisetty, M.D., M.B.A., M.P.H.Lake Forest, IL 600451013108059
- Javier Gonzalez, MDLake Forest, IL 600451902223209
- Diana Ilinskiy, M.D.Lake Forest, IL 600451598991218
- Alice Jacob, M.D.Lake Forest, IL 600451235438508
- Kartik KamariaLake Forest, IL 600451295178804
- Nelly Kvirikadze, MDLake Forest, IL 600451932291069
Common questions
What is Patrick Clarke Keller, MD's NPI number?
Patrick Clarke Keller, MD's National Provider Identifier (NPI) is 1972181188, issued on Mar 30, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Patrick Clarke Keller, MD located?
The NPPES record lists a practice address at 1000 N Westmoreland RD, Lake Forest, IL, 60045. Phone: (847) 234-5600. Providers update this record themselves, so call before visiting.
How can I verify Patrick Clarke Keller, MD's license?
NPPES lists Illinois license number 036167282, 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 Clarke Keller, MD prescribe under Medicare Part D?
In 2024, Patrick Clarke Keller, MD had 182 Medicare Part D claims for 61 beneficiaries; the average among hospitalist physician prescribers was 521. 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.