Stephen W. Ganshirt, M.D.
Surgery Physician · Lake Forest, IL
Stephen W. Ganshirt, M.D. is a surgery physician with a practice address in Lake Forest, Illinois, and NPI 1245200757, issued on Jan 25, 2006. Check the license (Illinois 036-088721, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Stephen W. Ganshirt
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- 036-088721 IL
Self-reported in NPPES; status is on the state search - Practice location
- 800 N Westmoreland RD, Lake Forest, IL 60045
- Phone
- (847) 234-4310
- Enumerated
- Jan 25, 2006
- Record last updated
- Oct 3, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (847) 234-4336
- Medicare enrollment
- Enrolled (PECOS I20110120000174); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 1,520 in Illinois → Look up another NPI →
Also registered at 800 N Westmoreland RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- John Benge, MDCardiovascular Disease Physician1285628859
- Mark Blitstein, M.D.Specialist1922086560
- Scott Braunlich, M.D.Internal Medicine Physician1487638904
- Kristen Coleman, NPAdult Health Nurse Practitioner1376891549
Verify Stephen W. Ganshirt 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 036-088721Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average surgery physician in 2024
28 Medicare Part D claims for 16 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% 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 one group practice
- 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).
Stephen W. Ganshirt among 1,520 surgery physician records in Illinois
Stephen W. Ganshirt, M.D. is one of 1,520 surgery physician records with a practice address in Illinois. 66% 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 8% of them.
- NPI issued2006 · 8% of these records are older, 64% newer
- In a Medicare fileYes · 66% of these records are
- In the CMS Doctors and Clinicians fileYes · 43% of these records are
- Graduated1989 · median 2004 among the 650 with a school on file
- Record last updated2017 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in Illinois
There are 1,520 surgery physician records in Illinois.
All 1,520 in Illinois → Every provider in Lake Forest → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Daniel Davila, M.D.Lake Forest, IL 600451558637124
- James Frydman, MDLake Forest, IL 600451104881218
- Heidi Memmel Mitidiero, MDLake Forest, IL 600451184679193
- Robert Ryan, M.D.Lake Forest, IL 600451437491396
- Kim Sobinsky, M.D.Lake Forest, IL 600451447220942
- You-Sah Kim, M.D.Lake Villa, IL 600461164548046
- Seema KumbhatLake Zurich, IL 600471013459742
- Gregory Skladzien, M.D.Kildeer, IL 600471578882932
Common questions
What is Stephen W. Ganshirt, M.D.'s NPI number?
Stephen W. Ganshirt, M.D.'s National Provider Identifier (NPI) is 1245200757, issued on Jan 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephen W. Ganshirt, M.D. located?
The NPPES record lists a practice address at 800 N Westmoreland RD, Lake Forest, IL, 60045. Phone: (847) 234-4310. Providers update this record themselves, so call before visiting.
How can I verify Stephen W. Ganshirt, M.D.'s license?
NPPES lists Illinois license number 036-088721, 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 Stephen W. Ganshirt, M.D. prescribe under Medicare Part D?
In 2024, Stephen W. Ganshirt, M.D. had 28 Medicare Part D claims for 16 beneficiaries; the average among surgery physician prescribers was 147. Part D covers Medicare prescriptions only.
What is Stephen W. Ganshirt, 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.