Marissa Jane Versalle, DO
Internal Medicine Physician · Lake Forest, IL
Marissa Jane Versalle, DO is an internal medicine physician with a practice address in Lake Forest, Illinois, and NPI 1669891107, issued on Apr 14, 2014. Check the license (Illinois 036146901, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Marissa Jane Versalle
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 036146901 IL
036.146901 IL
34.012714 OH
Self-reported in NPPES; status is on the state search - Practice location
- 990 S Waukegan RD FL 2, Lake Forest, IL 60045
- Phone
- (847) 861-0025
- Enumerated
- Apr 14, 2014
- Record last updated
- Jan 12, 2026
- Fax
- (847) 861-0026
- Medicare enrollment
- Enrolled (PECOS I20180828000696); accepts Medicare assignment
- Medical or professional school
- Lake Erie College Of Osteopathic Medicine, Erie, 2014
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,238 in Illinois → Look up another NPI →
Verify Marissa Jane Versalle 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 036146901Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
143 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% 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.
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 2 group practices
- Forward Focus Medical Care LLCLake Forest, IL
- Northwestern Medical Faculty FoundationLake Forest, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marissa Jane Versalle among 7,238 internal medicine physician records in Illinois
Marissa Jane Versalle, DO 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 2014, is newer than 59% of them.
- NPI issued2014 · 59% of these records are older, 39% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2014 · median 2003 among the 3,580 with a school on file
- Record last updated2026 · 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).
25 internal medicine physician records list a practice address in Lake Forest
They are 25 of the 821 NPPES records with a practice address in Lake Forest, and 7,238 internal medicine physician records in Illinois.
All 7,238 in Illinois → Every provider in Lake Forest → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Scott Braunlich, M.D.Lake Forest, IL 600451487638904
- Elisabeth Cormier, MDLake Forest, IL 600451891781241
- Jason Garti, M.D.Lake Forest, IL 600451003890500
- Sam Hull, MDLake Forest, IL 600451053319277
- Steven Lasin, MDLake Forest, IL 600451477574945
- Barry Levin, M.D.Lake Forest, IL 600451043324254
- Han Chung NgLake Forest, IL 600451558476622
- Amar Peruri, MDLake Forest, IL 600451184726499
Common questions
What is Marissa Jane Versalle, DO's NPI number?
Marissa Jane Versalle, DO's National Provider Identifier (NPI) is 1669891107, issued on Apr 14, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marissa Jane Versalle, DO located?
The NPPES record lists a practice address at 990 S Waukegan RD FL 2, Lake Forest, IL, 60045. Phone: (847) 861-0025. Providers update this record themselves, so call before visiting.
How can I verify Marissa Jane Versalle, DO's license?
NPPES lists Illinois license number 036146901, 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 Marissa Jane Versalle, DO prescribe under Medicare Part D?
In 2024, Marissa Jane Versalle, DO had 143 Medicare Part D claims for 67 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Marissa Jane Versalle, DO'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.