Jeffrey Clark, MD
Cardiovascular Disease Physician · Chicago, IL
Jeffrey Clark, MD is a cardiovascular disease physician with a practice address in Chicago, Illinois, and NPI 1457907321, issued on Aug 15, 2019. Check the license (Illinois 125.087172, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Jeffrey Clark
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- 125.087172 IL
Self-reported in NPPES; status is on the state search - Practice location
- 820 S Wood St Ste 100, Chicago, IL 60612
- Phone
- (312) 996-2933
- Enumerated
- Aug 15, 2019
- Record last updated
- Jun 30, 2026
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 1,073 in Illinois → Look up another NPI →
Also registered at 820 S Wood St Ste 100
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Susana Acosta Nunez De Villavicencio, MDSurgery Physician1972451193
Verify Jeffrey Clark 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 125.087172Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
316 Medicare Part D claims for 60 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Atorvastatin Calcium28 claims
- Diclofenac Sodium22 claims
- Amlodipine Besylate19 claims
- Levothyroxine Sodium19 claims
- Albuterol Sulfate Hfa13 claims
- Alcohol Prep Pads11 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.
Jeffrey Clark among 1,073 cardiovascular disease physician records in Illinois
Jeffrey Clark, MD is one of 1,073 cardiovascular disease physician records with a practice address in Illinois. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 87% of them.
- NPI issued2019 · 87% of these records are older, 10% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileNo · 64% of these records are
- Record last updated2026 · 50% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Illinois
There are 1,073 cardiovascular disease physician records in Illinois.
All 1,073 in Illinois → Every provider in Chicago → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- James Calvin, M.D.Chicago, IL 606121023041522
- Quinn Capers, M.D.Chicago, IL 606121053312413
- Rami Doukky, M.D.Chicago, IL 606121093761181
- Maan El Khadra, MDChicago, IL 606121316946700
- Philip Liebson, M.D.Chicago, IL 606121083630370
- Victor Pelaez, MDChicago, IL 606121235156266
- Jalees Rehman, M.D.Chicago, IL 606121396709135
- Cheryl Rucker-Whitaker, MD, MPHChicago, IL 606121821028622
Common questions
What is Jeffrey Clark, MD's NPI number?
Jeffrey Clark, MD's National Provider Identifier (NPI) is 1457907321, issued on Aug 15, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Jeffrey Clark, MD located?
The NPPES record lists a practice address at 820 S Wood St Ste 100, Chicago, IL, 60612. Phone: (312) 996-2933. Providers update this record themselves, so call before visiting.
How can I verify Jeffrey Clark, MD's license?
NPPES lists Illinois license number 125.087172, 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 Jeffrey Clark, MD prescribe under Medicare Part D?
In 2024, Jeffrey Clark, MD had 316 Medicare Part D claims for 60 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.