Richard R. Clark, M.D.
Family Medicine Physician · Grayslake, IL
Richard R. Clark, M.D. is a family medicine physician with a practice address in Grayslake, Illinois, and NPI 1023042470, issued on Jul 10, 2006. Check the license (Illinois 003-036-082187-01, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Richard R. Clark
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 003-036-082187-01 IL
38607 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1475 E Belvidere RD Unit 385, Grayslake, IL 60030
- Phone
- (847) 535-8000
- Enumerated
- Jul 10, 2006
- Record last updated
- Jan 12, 2019 (not updated in 7 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190213000620); accepts Medicare assignment
- Medical or professional school
- Jefferson Medical College Of Thomas Jefferson University, 1991
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1475 E Belvidere RD Unit 385
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Juan Aguirre Villalobos, MDStudent in an Organized Health Care Education/Training Program1912766577
- Zaynah AhmedStudent in an Organized Health Care Education/Training Program1194527044
- Rachel Bernardo, DOFamily Medicine Physician1104528306
- Jennifer Castillo SuchkouFamily Medicine Physician1558117499
- Oscar Castro, MDFamily Medicine Physician1043070113
- Jeriann Collymore, MD, MPHFamily Medicine Physician1992400329
Verify Richard R. 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 003-036-082187-01Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% fewer Medicare Part D claims than the average family medicine physician in 2024
3,190 Medicare Part D claims for 292 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium294 claims
- Amlodipine Besylate214 claims
- Hydrochlorothiazide154 claims
- Losartan Potassium141 claims
- Lisinopril139 claims
- Levothyroxine Sodium132 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): 94.1 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).
Bills Medicare through one group practice
- Northwestern Medical Faculty FoundationGurnee, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard R. Clark among 6,215 family medicine physician records in Illinois
Richard R. Clark, M.D. 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated1991 · median 2006 among the 3,714 with a school on file
- Record last updated2019 · 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).
37 family medicine physician records list a practice address in Grayslake
They are 37 of the 572 NPPES records with a practice address in Grayslake, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Grayslake → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Deborah Clements, M.D.Grayslake, IL 600301255427779
- Kent Kamradt, M.D.Grayslake, IL 600301598768939
- Adiba KhanGrayslake, IL 600301053842039
- Bryan KillianGrayslake, IL 600301336670181
- James Kim, MDGrayslake, IL 600301891890695
- Sarah Kim, MDGrayslake, IL 600301962562835
- Michael Kraft, MDGrayslake, IL 600301144725987
- Ariel Magallon, MDGrayslake, IL 600301841665098
Common questions
What is Richard R. Clark, M.D.'s NPI number?
Richard R. Clark, M.D.'s National Provider Identifier (NPI) is 1023042470, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard R. Clark, M.D. located?
The NPPES record lists a practice address at 1475 E Belvidere RD Unit 385, Grayslake, IL, 60030. Phone: (847) 535-8000. Providers update this record themselves, so call before visiting.
How can I verify Richard R. Clark, M.D.'s license?
NPPES lists Illinois license number 003-036-082187-01, 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 Richard R. Clark, M.D. prescribe under Medicare Part D?
In 2024, Richard R. Clark, M.D. had 3,190 Medicare Part D claims for 292 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Richard R. Clark, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.1 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.